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Comfort Systems (FIX - Free Report) came out with quarterly earnings of $13.91 per share, beating the Zacks Consensus Estimate of $12.71 per share. This compares to earnings of $8.25 per share a year ago. These figures are adjusted for non-recurring items.

This quarterly report represents an earnings surprise of +9.44%. A quarter ago, it was expected that this heating, ventilation and air conditioning company would post earnings of $10.38 per share when it actually produced earnings of $12.53, delivering a surprise of +20.71%.

Over the last four quarters, the company has surpassed consensus EPS estimates four times.

Comfort Systems, which belongs to the Zacks Building Products - Air Conditioner and Heating industry, posted revenues of $3.77 billion for the quarter ended September 2026, surpassing the Zacks Consensus Estimate by 12.45%. This compares to year-ago revenues of $2.45 billion. The company has topped consensus revenue estimates four times over the last four quarters.

The sustainability of the stock's immediate price movement based on the recently-released numbers and future earnings expectations will mostly depend on management's commentary on the earnings call.

Comfort Systems shares have added about 50.1% since the beginning of the year versus the S&P 500's gain of 13.3%.

What's Next for Comfort Systems?While Comfort Systems has outperformed the market so far this year, the question that comes to investors' minds is: what's next for the stock?

There are no easy answers to this key question, but one reliable measure that can help investors address this is the company's earnings outlook. Not only does this include current consensus earnings expectations for the coming quarter(s), but also how these expectations have changed lately.

Empirical research shows a strong correlation between near-term stock movements and trends in earnings estimate revisions. Investors can track such revisions by themselves or rely on a tried-and-tested rating tool like the Zacks Rank, which has an impressive track record of harnessing the power of earnings estimate revisions.

Ahead of this earnings release, the estimate revisions trend for Comfort Systems was mixed. While the magnitude and direction of estimate revisions could change following the company's just-released earnings report, the current status translates into a Zacks Rank #3 (Hold) for the stock. So, the shares are expected to perform in line with the market in the near future. You can see the complete list of today's Zacks #1 Rank (Strong Buy) stocks here.

It will be interesting to see how estimates for the coming quarters and the current fiscal year change in the days ahead. The current consensus EPS estimate is $12.85 on $3.44 billion in revenues for the coming quarter and $48.40 on $12.93 billion in revenues for the current fiscal year.

Investors should be mindful of the fact that the outlook for the industry can have a material impact on the performance of the stock as well. In terms of the Zacks Industry Rank, Building Products - Air Conditioner and Heating is currently in the bottom 31% of the 250 plus Zacks industries. Our research shows that the top 50% of the Zacks-ranked industries outperform the bottom 50% by a factor of more than 2 to 1.

Lennox International (LII - Free Report) , another stock in the same industry, has yet to report results for the quarter ended September 2026. The results are expected to be released on October 28.

This manufacturer of furnaces, air conditioners and other products is expected to post quarterly earnings of $7.18 per share in its upcoming report, which represents a year-over-year change of +2.9%. The consensus EPS estimate for the quarter has been revised 3.7% lower over the last 30 days to the current level.

Lennox International's revenues are expected to be $1.57 billion, up 10% from the year-ago quarter.

Key Takeaways FIX's Q3 EPS is expected to jump 53.9%, with revenues projected to rise 36.7% year over year.A record $14.06B backlog and robust data center demand are expected to fuel Mechanical and Electrical growth.FIX's 54.2% year to date rally, 25.2X forward P/E and rising costs raise caution ahead of Q3 earnings.
Comfort Systems USA, Inc. (FIX - Free Report) is slated to report its third-quarter 2026 results on Oct. 22, after market close.

In the last reported quarter, the company’s earnings and revenues topped the Zacks Consensus Estimate by 20.7% and 11%, respectively. Adjusted earnings per share (EPS) of $12.53 surged 91.9% from the year-ago quarter. Revenues of $3.27 billion also rose 50.3% year over year. Operating cash flow reached $1.14 billion, while backlog climbed 73% year over year to a record $14.06 billion. Management remained optimistic about continued growth through 2026 and into 2027, supported by strong project pipelines and expanding modular capabilities.

FIX’s earnings topped the consensus mark in each of the trailing four quarters. The average surprise is shown in the chart below.

Image Source: Zacks Investment Research

How Are Estimates Placed for FIX Stock?The Zacks Consensus Estimate for third-quarter EPS has increased to $12.70 from $12.64 over the past 60 days. The estimate indicates 53.9% growth from the year-ago EPS of $8.25. The consensus mark for revenues is pegged at $3.35 billion, indicating a 36.7% year-over-year increase.

For 2026, Comfort Systems is expected to post a 42.1% increase in revenues from a year ago. Its EPS is expected to grow 67.6% from a year ago. Below is what to expect from FIX stock.

Comfort Systems EPS Estimate

Image Source: Zacks Investment Research

Comfort Systems Revenue Estimate

Image Source: Zacks Investment Research

Factors Likely to Have Defined FIX’s Q3 PerformanceStrong Backlog Likely Supported Revenues: Comfort Systems’ third-quarter 2026 revenues are expected to have benefited from sustained demand for data centers, technology infrastructure and mission-critical facilities. The company entered the quarter with a record backlog of $14.06 billion, providing strong revenue visibility. Continued investments in advanced manufacturing, healthcare, education and government projects are also likely to have supported activity. Management expects full-year 2026 same-store revenue growth in the mid- to high-30% range, indicating continued momentum.

Segment-Wise: Comfort Systems operates through two segments — Mechanical and Electrical.

The Mechanical segment (which accounted for 73.3% of total revenues in 2025) is expected to have benefited from demand for HVAC installations, piping systems and modular fabrication associated with hyperscale data centers and industrial facilities. Expanding modular production capacity and healthy project pipelines are likely to have supported revenues. The Zacks Consensus Estimate for the segment’s revenues is currently pegged at $2.35 billion for the third quarter, up from $1.81 billion reported a year ago.

The Electrical segment (which contributed 26.7% of total revenues in 2025), is expected to have benefited from rising demand for electrical infrastructure, power distribution and control systems across technology and industrial projects. Contributions from the Hunt Electric acquisition, expected to generate approximately $250 million in annualized revenues, should have further supported segmental growth. The Zacks Consensus Estimate for the segment’s revenues is currently pegged at $1.0 billion for the third quarter, up from $640.5 million reported a year ago.

Margins Likely Remained Strong: Third-quarter margins are expected to have benefited from favorable project execution, disciplined bidding, strong pricing and operating leverage. Management anticipates gross margins remaining within the healthy ranges achieved in recent quarters. However, higher workforce expenses and continued investments in modular manufacturing capacity could have partially offset margin gains.

Overall Earnings Expectations: Higher revenues, favorable project mix and operating efficiencies are likely to have supported earnings growth. Management did not provide specific third-quarter guidance but expressed confidence in sustained growth through 2026 and projected a full-year effective tax rate of approximately 23%.

What the Zacks Model Says for FIX StockOur proven model does not conclusively predict an earnings beat for Comfort Systems this time around. A combination of a positive Earnings ESP and a Zacks Rank #1 (Strong Buy), 2 (Buy) or 3 (Hold) increases the odds of an earnings beat. This is not the case here.

FIX’s Earnings ESP: The company has an Earnings ESP of 0.00%. You can uncover the best stocks before they’re reported with our Earnings ESP Filter.

FIX’s Zacks Rank: The company currently carries a Zacks Rank of 4 (Sell).

You can see the complete list of today’s Zacks #1 Rank stocks here.

FIX Stock’s Price PerformanceFIX stock has risen 54.2% year to date, outperforming the Zacks Building Products - Air Conditioner and Heating industry, the Zacks Construction sector and the S&P 500 Index.

FIX Stock’s Price Performance (Year to date)

Image Source: Zacks Investment Research

Comfort Systems operates at a critical level of the artificial intelligence (AI)-driven data center and technology infrastructure boom, competing with Quanta Services, Inc. (PWR - Free Report) , Carrier Global Corporation (CARR - Free Report) and EMCOR Group, Inc. (EME - Free Report) across distinct but overlapping markets. Year to date, FIX has outperformed these major industry peers, with Quanta, EMCOR and Carrier Global gaining 49.7%, 18% and 4.1%, respectively. This outperformance reflects investors’ confidence in Comfort Systems’ strong exposure to high-growth markets, particularly AI data centers, advanced manufacturing and mission-critical infrastructure.

FIX's Price Performance vs Peers (YTD)

Image Source: Zacks Investment Research

FIX’s Valuation TrendFIX stock is currently trading at a premium compared with the industry peers, with a forward 12-month price-to-earnings (P/E) ratio of 25.2, as evidenced by the chart below.

FIX’s Valuation vs Industry (P/E F12M)

Image Source: Zacks Investment Research

At 25.2X forward 12-month earnings, Comfort Systems trades above Carrier Global's 17.22X and EMCOR's 19.84X, suggesting that investors are willing to pay a higher multiple for its growth prospects, strong backlog and exposure to technology-related infrastructure spending. However, FIX remains relatively cheaper than Quanta, which commands a higher multiple of 33.5X. This valuation gap suggests that Comfort Systems offers comparatively more attractive pricing than Quanta, although its premium over Carrier Global and EMCOR leaves limited room for execution setbacks.

Should Investors Sell FIX Stock Before Q3 Earnings?Despite strong backlog growth and healthy demand from data centers and technology infrastructure, investors may consider selling FIX stock ahead of its third-quarter earnings release. The stock’s 54.2% year-to-date rally and premium valuation relative to Carrier Global and EMCOR suggest that much of its growth potential is already priced in. Rising labor costs, capacity expansion expenses and high investor expectations could increase downside risks if results disappoint. FIX’s Zacks Rank #4 reinforces near-term caution. Given these factors, booking profits ahead of the earnings announcement appears prudent.

Comfort Systems USA (NYSE:FIX – Get Free Report) is expected to be releasing its Q3 2026 results after the market closes on Thursday, October 22nd. Analysts expect the company to post earnings of $12.85 per share and revenue of $3.39 billion for the quarter. Individuals may visit the company’s upcoming Q3 2026 earnings summary page for the latest details on the call scheduled for Friday, October 23, 2026 at 11:00 AM ET.

Comfort Systems USA (NYSE:FIX – Get Free Report) last released its quarterly earnings data on Thursday, July 23rd. The construction company reported $12.53 earnings per share (EPS) for the quarter, beating analysts’ consensus estimates of $10.45 by $2.08. The business had revenue of $3.27 billion for the quarter, compared to analysts’ expectations of $2.99 billion. Comfort Systems USA had a return on equity of 53.55% and a net margin of 12.77%. Comfort Systems USA’s quarterly revenue was up 50.3% on a year-over-year basis. During the same period in the previous year, the business posted $6.53 earnings per share. On average, analysts expect Comfort Systems USA to post $48.15 EPS for the current fiscal year and $59.31 EPS for the next fiscal year.

Comfort Systems USA Stock Performance Shares of NYSE FIX opened at $1,538.84 on Thursday. The firm has a market capitalization of $54.15 billion, a price-to-earnings ratio of 40.01 and a beta of 1.66. Comfort Systems USA has a one year low of $770.47 and a one year high of $2,073.99. The business has a fifty day simple moving average of $1,652.73 and a 200 day simple moving average of $1,730.07. The company has a current ratio of 1.21, a quick ratio of 1.19 and a debt-to-equity ratio of 0.02.

Comfort Systems USA Increases Dividend The firm also recently declared a quarterly dividend, which was paid on Monday, August 24th. Shareholders of record on Thursday, August 13th were paid a dividend of $0.90 per share. This is an increase from Comfort Systems USA’s previous quarterly dividend of $0.80. This represents a $3.60 dividend on an annualized basis and a yield of 0.2%. The ex-dividend date was Thursday, August 13th. Comfort Systems USA’s dividend payout ratio is presently 8.85%. Insider Transactions at Comfort Systems USA In related news, insider Brian Lane sold 16,024 shares of the firm’s stock in a transaction that occurred on Wednesday, August 26th. The stock was sold at an average price of $1,608.21, for a total transaction of $25,769,957.04. Following the completion of the transaction, the insider owned 145,065 shares in the company, valued at $233,294,983.65. This trade represents a 9.95% decrease in their position. The transaction was disclosed in a filing with the Securities & Exchange Commission, which is available through the SEC website. Also, Director Franklin Myers sold 4,000 shares of the business’s stock in a transaction on Tuesday, August 11th. The shares were sold at an average price of $1,693.92, for a total value of $6,775,680.00. Following the completion of the sale, the director directly owned 8,495 shares in the company, valued at approximately $14,389,850.40. This represents a 32.01% decrease in their position. Additional details regarding this sale are available in the official SEC disclosure. In the last ninety days, insiders sold 26,078 shares of company stock valued at $43,211,828. Corporate insiders own 1.24% of the company’s stock.

Wall Street Analyst Weigh In A number of equities analysts have recently issued reports on the stock. The Goldman Sachs Group initiated coverage on shares of Comfort Systems USA in a research note on Thursday, July 9th. They issued a “buy” rating and a $2,159.00 price objective for the company. Weiss Ratings raised shares of Comfort Systems USA from a “buy (b-)” rating to a “buy (b)” rating in a report on Thursday, October 8th. Erste Group Bank lowered shares of Comfort Systems USA from a “buy” rating to a “hold” rating in a research report on Wednesday, July 15th. Stifel Nicolaus set a $1,910.00 target price on shares of Comfort Systems USA and gave the company a “buy” rating in a research note on Monday, July 27th. Finally, DA Davidson began coverage on shares of Comfort Systems USA in a research note on Friday, August 21st. They issued a “buy” rating and a $2,100.00 target price on the stock. Eight investment analysts have rated the stock with a Buy rating and two have given a Hold rating to the company. According to data from MarketBeat.com, the stock presently has a consensus rating of “Moderate Buy” and an average target price of $2,082.86.

Check Out Our Latest Stock Analysis on FIX

Comfort Systems USA Company Profile (Get Free Report)

Comfort Systems USA, Inc (NYSE:FIX) provides mechanical, electrical, and other contracting services for commercial, industrial, and institutional customers. Its work supports the construction, renovation, and ongoing operation of facilities such as office buildings, hospitals, schools, data centers, manufacturing plants, and other complex infrastructure.

The company’s services include heating, ventilation, and air conditioning; plumbing and piping; electrical contracting; building automation and controls; and related specialty services.

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Argent Capital Management LLC trimmed its stake in Comfort Systems USA, Inc. (NYSE:FIX – Free Report) by 16.5% in the 3rd quarter, according to its most recent filing with the Securities and Exchange Commission (SEC). The fund owned 3,205 shares of the construction company’s stock after selling 635 shares during the period. Argent Capital Management LLC’s holdings in Comfort Systems USA were worth $5,301,000 at the end of the most recent reporting period.

Other institutional investors and hedge funds have also recently modified their holdings of the company. Prudential PLC purchased a new stake in Comfort Systems USA in the 4th quarter worth about $6,922,000. Simplicity Wealth LLC purchased a new position in shares of Comfort Systems USA during the second quarter valued at approximately $601,000. New York State Teachers Retirement System boosted its position in shares of Comfort Systems USA by 2.7% during the first quarter. New York State Teachers Retirement System now owns 30,665 shares of the construction company’s stock valued at $42,287,000 after buying an additional 800 shares during the period. ING Groep NV bought a new position in shares of Comfort Systems USA during the fourth quarter valued at approximately $4,245,000. Finally, Storgate LLC purchased a new stake in shares of Comfort Systems USA in the fourth quarter worth approximately $644,000. Hedge funds and other institutional investors own 96.51% of the company’s stock.

Insider Transactions at Comfort Systems USA In other Comfort Systems USA news, Director Franklin Myers sold 4,000 shares of the firm’s stock in a transaction that occurred on Tuesday, August 11th. The shares were sold at an average price of $1,693.92, for a total transaction of $6,775,680.00. Following the completion of the transaction, the director directly owned 8,495 shares of the company’s stock, valued at approximately $14,389,850.40. This trade represents a 32.01% decrease in their position. The transaction was disclosed in a filing with the SEC, which can be accessed through this link. Also, insider Brian E. Lane sold 16,024 shares of the stock in a transaction on Wednesday, August 26th. The stock was sold at an average price of $1,608.21, for a total transaction of $25,769,957.04. Following the completion of the sale, the insider owned 145,065 shares in the company, valued at $233,294,983.65. The trade was a 9.95% decrease in their position. Additional details regarding this sale are available in the official SEC disclosure. Insiders sold a total of 26,078 shares of company stock worth $43,211,828 over the last three months. 1.24% of the stock is currently owned by insiders.

Comfort Systems USA Stock Down 0.6% Shares of NYSE:FIX traded down $11.11 during trading on Monday, reaching $1,716.90. The stock had a trading volume of 89,583 shares, compared to its average volume of 432,192. The company has a current ratio of 1.21, a quick ratio of 1.19 and a debt-to-equity ratio of 0.02. Comfort Systems USA, Inc. has a one year low of $770.47 and a one year high of $2,073.99. The company has a market capitalization of $60.42 billion, a P/E ratio of 42.24 and a beta of 1.66. The firm’s 50-day simple moving average is $1,654.28 and its 200 day simple moving average is $1,714.92. Comfort Systems USA (NYSE:FIX – Get Free Report) last announced its quarterly earnings data on Thursday, July 23rd. The construction company reported $12.53 earnings per share for the quarter, beating analysts’ consensus estimates of $10.45 by $2.08. Comfort Systems USA had a net margin of 12.77% and a return on equity of 53.55%. The firm had revenue of $3.27 billion for the quarter, compared to analyst estimates of $2.99 billion. During the same period in the previous year, the company earned $6.53 earnings per share. The business’s quarterly revenue was up 50.3% compared to the same quarter last year. As a group, research analysts expect that Comfort Systems USA, Inc. will post 48.15 EPS for the current fiscal year.

Comfort Systems USA Increases Dividend The company also recently disclosed a quarterly dividend, which was paid on Monday, August 24th. Stockholders of record on Thursday, August 13th were paid a $0.90 dividend. The ex-dividend date was Thursday, August 13th. This is a positive change from Comfort Systems USA’s previous quarterly dividend of $0.80. This represents a $3.60 annualized dividend and a dividend yield of 0.2%. Comfort Systems USA’s dividend payout ratio (DPR) is 8.85%.

Analyst Upgrades and Downgrades A number of equities analysts recently issued reports on FIX shares. Stifel Nicolaus set a $1,910.00 price objective on Comfort Systems USA in a report on Monday, July 27th. The Goldman Sachs Group initiated coverage on shares of Comfort Systems USA in a research note on Thursday, July 9th. They set a “buy” rating and a $2,159.00 target price for the company. Zacks Research upgraded shares of Comfort Systems USA from a “hold” rating to a “strong-buy” rating in a report on Tuesday, July 28th. KeyCorp lifted their price objective on shares of Comfort Systems USA from $2,004.00 to $2,110.00 and gave the company an “overweight” rating in a report on Monday, July 27th. Finally, Weiss Ratings cut shares of Comfort Systems USA from a “buy (b)” rating to a “buy (b-)” rating in a research report on Friday, September 11th. One research analyst has rated the stock with a Strong Buy rating, eight have issued a Buy rating and one has given a Hold rating to the stock. According to data from MarketBeat, the stock has a consensus rating of “Buy” and a consensus price target of $2,082.86.

Read Our Latest Stock Report on FIX

Comfort Systems USA Company Profile (Free Report)

Comfort Systems USA, Inc (NYSE:FIX) provides mechanical, electrical, and other contracting services for commercial, industrial, and institutional customers. Its work supports the construction, renovation, and ongoing operation of facilities such as office buildings, hospitals, schools, data centers, manufacturing plants, and other complex infrastructure.

The company’s services include heating, ventilation, and air conditioning; plumbing and piping; electrical contracting; building automation and controls; and related specialty services.

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Mechanical and electrical services contractor Comfort Systems USA (FIX +2.54%) may not be the best-known stock on the market, but it is a key player in the artificial intelligence (AI) data center build-out.

The stock is up 77% this year and an incredible 871% over the last three years, largely due to its exposure to the AI data center build-out boom and the impact on the company's backlog.

Image source: Getty Images.

Comfort Systems USA backlog The chart below shows the remarkable growth in its backlog over the last few years. For reference, Wall Street analysts expect revenue of just under $13 billion in 2026, so the current backlog of $14.06 billion more than covers 2026 revenue and continues to grow. It's likely to do so given the massive sums that hyperscalers continue to commit to building out AI data centers.

The data-center-related revenue is reported with its technology revenue and, according to President Trent McKenna on an earnings call in July, "Technology, which is included in industrial, was 58% of our revenue, a substantial increase from 40% in the prior year."

Data source: Comfort Systems USA presentations. Chart by author.

The backlog doesn't show the full picture It's also worth noting that Comfort's backlog is arguably a conservative metric that doesn't reflect a stronger long-term picture. Comfort's backlog "reflects revenue still to be recognized under contracted or committed installation and replacement project work," according to the company. This work generally lasts less than one year. The backlog does not include service work or maintenance contracts, which "do not flow through backlog." As such, the backlog doesn't fully reflect the benefit Comfort Systems will get from its project work.

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On the other hand, the backlog has a relatively short duration given that project work lasts less than one year. Still, that won't trouble investors as long as the backlog keeps growing; an increasing backlog simply translates into revenue growth and a long tail of service and retrofit opportunities in the future.

Lee Samaha has no position in any of the stocks mentioned. The Motley Fool has positions in and recommends Comfort Systems USA. The Motley Fool has a disclosure policy.

Key Takeaways Comfort Systems expects Hunt to add about $250M in annualized revenue and $217M to backlog.Hunt expands Comfort Systems' Western electrical footprint as second-quarter electrical revenues jumped 81%.Joint Utah projects could pair Hunt's electrical expertise with Comfort Systems' mechanical operations. Comfort Systems USA (FIX - Free Report) appears well positioned to extract meaningful value from its acquisition of R.C. Hunt Electric. The company acquired Utah-based Hunt on May 1, 2026, for a preliminary purchase price of $206 million. Hunt provides electrical design and construction services across industrial, technology, commercial and infrastructure markets in the Western United States. Management expects the business to contribute roughly $250 million of annualized revenues.

The strategic fit looks particularly attractive given Comfort Systems' expanding electrical footprint and strong technology demand. Second-quarter electrical revenues surged 81% year over year, while electrical gross margin improved to 26.4% from 25.3%. Meanwhile, technology accounted for roughly 58% of first-half revenues, supported by robust data-center activity. Hunt also added about $217 million to quarter-end backlog, strengthening Comfort Systems' already record $14.06 billion backlog.

Importantly, early integration appears encouraging. Management said Hunt is already pursuing projects jointly with Comfort Systems' mechanical contractors in Utah, potentially allowing the company to offer broader mechanical-and-electrical solutions and deepen customer relationships. Comfort Systems also retained substantial financial flexibility, ending the quarter with more than $1.8 billion of net cash despite acquisitions and heavy capital spending.

Integration execution and dependence on technology-sector demand remain risks. Still, Hunt's market position, electrical expertise, cross-selling potential and immediate backlog contribution suggest the acquisition could strengthen Comfort Systems' growth platform heading into 2027.

Hunt Deal Strengthens FIX Against Key RivalsThe Hunt Electric acquisition strengthens Comfort Systems’ position in a market where EMCOR Group (EME - Free Report) and Quanta Services (PWR - Free Report) are expanding aggressively. EMCOR Group is a direct rival across electrical and mechanical construction, particularly in mission-critical and data-center work. EMCOR Group reported record second-quarter 2026 revenues of $5.15 billion and remaining performance obligations of $17.14 billion, highlighting strong demand and substantial project visibility.

Quanta also raises the competitive bar. The company generated second-quarter revenues of $9.56 billion and ended the period with $53.4 billion of backlog. Its acquisition strategy has expanded electrical, mechanical and fabrication capabilities, including added exposure to data centers and other technology infrastructure. Quanta Services’ scale, skilled workforce and broad self-perform capabilities could intensify competition for large projects and labor. Still, Hunt gives Comfort Systems a stronger Western electrical presence and creates opportunities to pair electrical expertise with its mechanical operations, supporting broader customer solutions.

FIX Stock’s Price Performance & Valuation TrendShares of this Texas-based heating, ventilation, air conditioning and electrical contracting service provider have surged 77.7% year to date, outperforming the Zacks Building Products - Air Conditioner and Heating industry, the Zacks Construction sector and the S&P 500 Index.

FIX’s Share Price Performance (YTD)

Image Source: Zacks Investment Research

FIX stock is currently trading at a premium compared with the industry peers, with a forward 12-month price-to-earnings (P/E) ratio of 29.46, as the trend lines suggest below.

FIX Valuation (P/E F12M)

Image Source: Zacks Investment Research

Earnings Estimate Trend of FIXFIX’s earnings estimates for 2026 increased to $47.65 per share, while the 2027 estimate declined to $59.31 over the past 60 days, as shown below. The revised estimates for 2026 and 2027 imply year-over-year growth of 65% and 24.5%, respectively.
 

Image Source: Zacks Investment Research

Comfort Systems currently carries a Zacks Rank #2 (Buy). You can see the complete list of today’s Zacks #1 Rank (Strong Buy) stocks here.

Key Takeaways Comfort Systems' Service revenues rose 7% in the first six months of 2026 to 10% of total revenues.Data center construction could create service demand, though warranty periods may delay the opportunity.Regulatory pushback may slow projects, while selective geographies could help Comfort Systems expand Service. Comfort Systems USA, Inc. (FIX - Free Report) is positioning its Service business to benefit from the growing data center installed base across the country. The company sees the construction of new data centers as a source of future maintenance demand, particularly given the technical requirements of these facilities. At the same time, regulatory pushback and permitting challenges could affect where and how quickly some projects are developed.

Service revenues increased 7% in the first six months of 2026 and accounted for 10% of total revenues. The company expects the large number of data centers being built today to create a longer-term service opportunity. However, the opportunity may not materialize immediately, as some work remains covered by warranty periods with original equipment manufacturers.

Comfort Systems has already established itself as a service provider to one hyperscaler, creating an entry point into additional data centers. The company is focusing on geographies where service technicians can be deployed effectively and is being selective about projects it can execute successfully. This approach may help the company build the service business without taking on locations that are difficult to support.

However, regulatory challenges could affect the pace and location of future data center development. Moratoriums and public opposition in markets such as New York may delay projects or lead developers to consider other locations. Comfort Systems has limited near-term exposure to these issues because much of the existing backlog is already planned and permitted through late stages. The Modular business also appears less exposed, as the model is more programmatic and focused on specific locations.

As data center construction expands, the resulting installed base provides Comfort Systems with a potential source of recurring service demand. The pace of that opportunity will depend on project development, warranty periods and the ability to operate efficiently across targeted geographies.

Comfort Systems and Its Competitive PositionComfort Systems competes with EMCOR Group, Inc. (EME - Free Report) and Quanta Services, Inc. (PWR - Free Report) across mechanical and electrical construction, mission-critical projects and large-scale infrastructure. Both companies have strong execution capabilities, but each has a different market focus.

    EMCOR has a broad presence across electrical and mechanical construction, building services and industrial work. Data centers, manufacturing, institutional projects and other complex facilities support demand. EMCOR also benefits from strong prefabrication, virtual design and construction capabilities, disciplined contract management and experienced field leadership. These strengths support efficient project execution and help the company manage large and complex projects. At the same time, EMCOR maintains exposure across several end markets rather than focusing primarily on a single area.

Quanta has a broader infrastructure focus, with significant exposure to utility transmission, generation, renewables and technology-related projects. The company emphasizes self-perform capabilities, craft-skilled labor and execution certainty, while also expanding into technology and load-center markets. Fabrication and higher-voltage infrastructure add to the company's capabilities. Quanta is also using acquisitions to expand its electrical, mechanical, civil and fabrication expertise.

Overall, EMCOR and Quanta remain well-established engineering contractors with diversified capabilities. Comfort Systems has a distinct position through its focus on mechanical and electrical construction, data center demand and modular solutions. This mix can provide a strong platform as customers seek faster project delivery and greater use of factory-built construction methods.

FIX Stock’s Price Performance & Valuation TrendShares of this Texas-based heating, ventilation, air conditioning and electrical contracting service provider have surged 69.6% year to date, outperforming the Zacks Building Products - Air Conditioner and Heating industry, the Zacks Construction sector and the S&P 500 Index.

FIX’s Share Price Performance (YTD)
Image Source: Zacks Investment Research

FIX stock is currently trading at a premium compared with the industry peers, with a forward 12-month price-to-earnings (P/E) ratio of 28.87, as the trend lines suggest below.

FIX Valuation (P/E F12M)
Image Source: Zacks Investment Research

Earnings Estimate Trend of FIXFIX’s earnings estimates for 2026 and 2027 have moved upward in the past 30 days to $46.40 and $58.31 per share, respectively, as shown below. The revised estimates for 2026 and 2027 imply year-over-year growth of 60.7% and 25.7%, respectively.
 

Image Source: Zacks Investment Research

Comfort Systems currently sports a Zacks Rank #1 (Strong Buy). You can see the complete list of today’s Zacks #1 Rank stocks here.

Key Takeaways FIX fell 12.4% in three months even as Q2 revenues jumped 50.3% and EPS rose 91.9%.Record backlog hit $14.06 billion, up 73.1%, while technology reached 57.6% of first-half revenue.Strong cash flow & modular expansion support growth, but FIX's 29.55X forward P/E leaves less room for error. Comfort Systems USA (FIX - Free Report) has lost 12.4% over the past three months, reflecting weaker investor sentiment despite continued business momentum. Even after the decline, the stock has performed better than the Zacks Building Products - Air Conditioner and Heating industry, which fell 14.9% over the same period. However, FIX has trailed the Zacks Construction sector’s 9.3% decline and the S&P 500’s 3% gain, raising the question of whether the recent weakness has created an attractive entry point.

FIX Price Performance (3-Month)
Image Source: Zacks Investment Research

The company’s operating performance remains a key support to the investment case. In the second quarter of 2026, revenues advanced 50.3% year over year to $3.27 billion, aided by strong demand, particularly from technology and data center customers. Earnings per share (EPS) rose 91.9% to $12.53, while gross margin expanded to 25.9% from 23.5%. Operating margin also improved to 17.1% from 13.8%, reflecting solid execution and better cost leverage.

Strong Q2 Results Keep the Growth Story IntactSecond-quarter 2026 revenues increased 50.3% year over year to $3.27 billion, while EPS rose 91.9% to $12.53. Gross margin improved to 25.9% from 23.5%, and operating margin expanded to 17.1% from 13.8%. Management expects full-year same-store revenue growth in the mid- to high-30% range.

Backlog reached a record $14.06 billion as of June 30, up 73.1% year over year and 12.9% sequentially. Comfort Systems expects to recognize about 65-75% of its remaining construction performance obligations over the next 12 months, providing strong visibility into 2027.

Technology and Modular Demand Support FIX’s RunwayTechnology remains the main growth driver. Technology accounted for 57.6% of first-half revenues, up from 40.2% a year earlier. Technology bookings drove much of the backlog increase, while institutional markets such as health care, education and government also remain supportive.

Modular expansion adds another growth engine. Comfort Systems had more than 3.5 million square feet of dedicated modular capacity and expects more than 4 million by year-end and roughly 5 million by late summer 2027. Management said that expansion is backed by meaningful multiyear customer commitments rather than speculative building. Pilot work with frontier labs and colocation providers could also broaden the customer base.

Strong Cash Generation Supports ExpansionComfort Systems ended the second quarter with $1.85 billion in cash and only $54.1 million of total debt, leaving more than $1.8 billion of net cash. Second-quarter free cash flow was $999 million and first-half free cash flow reached $1.24 billion.

Management expects capital spending of roughly 5% of revenues as it expands production facilities and invests in automation and specialized equipment. Even with acquisitions and higher investment, liquidity remains strong. The company has generated positive net free cash flow for 27 consecutive calendar years, giving it room to fund expansion, dividends and acquisitions without heavy balance-sheet pressure.

What Could Slow FIX Stock’s Momentum?Comfort Systems continues to face higher labor costs and intermittent supply-chain shortages, including delays in materials and equipment. Earlier purchasing, pricing and project planning have helped, but these pressures can still affect productivity and project timing. Management is also preparing for a range of economic conditions, including the possibility of a recession, although it expects supportive conditions in manufacturing and technology to continue through 2026.

Technology concentration also raises risk. With technology near 58% of first-half revenues, any slowdown in data center or related infrastructure spending could have a larger effect than before. Rapid modular expansion and a much larger backlog also raise execution demands.

Premium Valuation Leaves Less Room for ErrorFIX trades at 29.55X forward 12-month earnings, above the industry’s 22.83X and its five-year median of 23.05X. Although below the upper end of its five-year range of 13.32-48.14X, the stock remains expensive relative to its own history and industry.

FIX Stock’s Valuation (P/E F12M)
Image Source: Zacks Investment Research

Still, estimates are moving higher. In the past 30 days, the Zacks Consensus Estimate for 2026 EPS  increased to $46.40 from $46.38, and the same for 2027 EPS rose to $58.31 from $57.81, with no downward revisions. The estimates imply EPS growth of 60.7% in 2026 and 25.7% in 2027, while revenues are expected to rise 38.3% and 19.8%, respectively.

FIX’s EPS Estimate Revision Trend
Image Source: Zacks Investment Research

How FIX Compares With EMCOR, Sterling and QuantaComfort Systems’ 12.4% three-month decline falls between key infrastructure peers. EMCOR Group (EME - Free Report) shares are down 7%, Quanta Services (PWR - Free Report) is down 8.2%, while Sterling Infrastructure (STRL - Free Report) has fallen 40.9%. Comfort Systems has therefore lagged EMCOR and Quanta but held up much better than Sterling.

Valuation gives a mixed signal. EMCOR trades at 21.02X forward earnings and Sterling at 20.59X, making both EMCOR and Sterling cheaper than Comfort Systems at 29.55X. Quanta trades at 34.52X, leaving FIX at a discount to Quanta. EMCOR remains a close rival in mechanical, electrical and mission-critical building services, Sterling competes for data center, semiconductor and advanced manufacturing projects, and Quanta has broad exposure to electrical construction and integrated infrastructure. EMCOR, Sterling and Quanta therefore provide useful benchmarks: FIX carries a premium to two of the three, but its growth profile and balance-sheet strength help support that premium.

Is Comfort Systems Stock a Buy After the Dip?Wall Street remains positive. FIX’s ABR is 1.31, with 11 of 13 recommendations at Strong Buy, and the average price target of $2,135.44 implies 32.2% upside from the last closing price. More importantly, upward earnings revisions support its Zacks Rank #1 (Strong Buy). You can see the complete list of today’s Zacks #1 Rank stocks here.
 

Image Source: Zacks Investment Research

The pullback does not make FIX cheap, and technology concentration plus a premium multiple leave less room for setbacks. Still, record backlog, modular expansion, strong cash generation and rising estimates keep the growth case intact. Investors comfortable with valuation risk may view the recent weakness as a buying opportunity.

AlphaGrep UK Ltd purchased a new position in shares of Comfort Systems USA, Inc. (NYSE:FIX – Free Report) in the 2nd quarter, according to its most recent 13F filing with the Securities & Exchange Commission. The institutional investor purchased 533 shares of the construction company’s stock, valued at approximately $1,056,000.

Other hedge funds and other institutional investors have also modified their holdings of the company. Turner Financial Group Inc. purchased a new position in Comfort Systems USA in the second quarter valued at approximately $338,000. Three Seasons Wealth LLC acquired a new stake in Comfort Systems USA in the 2nd quarter valued at $565,000. SMART Wealth LLC purchased a new position in Comfort Systems USA in the second quarter valued at about $200,000. Comprehensive Financial Planning Inc. PA purchased a new position in Comfort Systems USA in the second quarter valued at about $347,000. Finally, Concurrent Investment Advisors LLC lifted its stake in shares of Comfort Systems USA by 304.0% during the second quarter. Concurrent Investment Advisors LLC now owns 3,741 shares of the construction company’s stock worth $7,414,000 after purchasing an additional 2,815 shares in the last quarter. 96.51% of the stock is owned by institutional investors and hedge funds.

Insider Transactions at Comfort Systems USA In related news, insider Brian Lane sold 16,024 shares of the company’s stock in a transaction dated Wednesday, August 26th. The shares were sold at an average price of $1,608.21, for a total value of $25,769,957.04. Following the completion of the sale, the insider owned 145,065 shares of the company’s stock, valued at $233,294,983.65. This represents a 9.95% decrease in their ownership of the stock. The transaction was disclosed in a document filed with the SEC, which is available through the SEC website. Also, CFO William George, III sold 2,554 shares of the stock in a transaction that occurred on Monday, August 17th. The shares were sold at an average price of $1,859.65, for a total transaction of $4,749,546.10. Following the completion of the transaction, the chief financial officer owned 30,250 shares of the company’s stock, valued at $56,254,412.50. This trade represents a 7.79% decrease in their ownership of the stock. The SEC filing for this sale provides additional information. Over the last quarter, insiders sold 32,778 shares of company stock valued at $56,306,777. 1.24% of the stock is currently owned by corporate insiders.

Analysts Set New Price Targets FIX has been the subject of a number of recent research reports. DA Davidson started coverage on Comfort Systems USA in a research note on Friday, August 21st. They issued a “buy” rating and a $2,100.00 target price for the company. The Goldman Sachs Group started coverage on Comfort Systems USA in a research report on Thursday, July 9th. They set a “buy” rating and a $2,159.00 price target on the stock. Zacks Research upgraded shares of Comfort Systems USA from a “hold” rating to a “strong-buy” rating in a research note on Tuesday, July 28th. Stifel Nicolaus set a $1,910.00 target price on shares of Comfort Systems USA in a research report on Monday, July 27th. Finally, KeyCorp raised their price target on shares of Comfort Systems USA from $2,004.00 to $2,110.00 and gave the company an “overweight” rating in a report on Monday, July 27th. One equities research analyst has rated the stock with a Strong Buy rating, nine have given a Buy rating and one has issued a Hold rating to the company’s stock. Based on data from MarketBeat, the company presently has a consensus rating of “Buy” and a consensus price target of $2,082.86. View Our Latest Analysis on FIX

Comfort Systems USA Price Performance Shares of NYSE:FIX opened at $1,611.87 on Friday. The firm’s 50 day moving average is $1,708.39 and its two-hundred day moving average is $1,678.66. Comfort Systems USA, Inc. has a 52 week low of $682.00 and a 52 week high of $2,073.99. The firm has a market capitalization of $56.72 billion, a P/E ratio of 39.64 and a beta of 1.67. The company has a current ratio of 1.21, a quick ratio of 1.19 and a debt-to-equity ratio of 0.02.

Comfort Systems USA (NYSE:FIX – Get Free Report) last issued its quarterly earnings data on Thursday, July 23rd. The construction company reported $12.53 earnings per share (EPS) for the quarter, topping the consensus estimate of $10.45 by $2.08. Comfort Systems USA had a return on equity of 53.55% and a net margin of 12.77%.The business had revenue of $3.27 billion during the quarter, compared to the consensus estimate of $2.99 billion. During the same period in the previous year, the firm posted $6.53 earnings per share. The business’s revenue was up 50.3% on a year-over-year basis. Analysts anticipate that Comfort Systems USA, Inc. will post 47.2 earnings per share for the current year.

Comfort Systems USA Increases Dividend The firm also recently declared a quarterly dividend, which was paid on Monday, August 24th. Stockholders of record on Thursday, August 13th were paid a $0.90 dividend. The ex-dividend date of this dividend was Thursday, August 13th. This is a positive change from Comfort Systems USA’s previous quarterly dividend of $0.80. This represents a $3.60 annualized dividend and a dividend yield of 0.2%. Comfort Systems USA’s dividend payout ratio (DPR) is currently 8.85%.

(Free Report)

Comfort Systems USA, Inc is a U.S.-based mechanical contracting company that provides a range of heating, ventilation and air conditioning (HVAC) services to commercial, industrial and institutional customers. The company focuses on the design, installation, maintenance and repair of HVAC systems, and it supports projects from initial engineering and system selection through long-term service agreements and upgrades.

Its service offerings include new construction and retrofit installations, preventive and corrective maintenance, emergency repair, energy management and building automation systems.

Read More Five stocks we like better than Comfort Systems USA Revolution Medicines Got Its Breakthrough—What Moves It Next? Retail Earnings Just Exposed a Bigger Divide in the U.S. Consumer Economy FB Financial’s Southern Expansion and Buybacks Drive Analyst Optimism AST SpaceMobile Stock Soared 12%—This Was the Catalyst Want to see what other hedge funds are holding FIX? Visit HoldingsChannel.com to get the latest 13F filings and insider trades for Comfort Systems USA, Inc. (NYSE:FIX – Free Report).

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On August 26, 2026, we delve into the DCF analysis for Comfort Systems USA Inc FIX, a company that has experienced significant price fluctuations recently. Over the past year, the stock has surged by 126.5%, but it has also seen a decline of 10.2% in the last week alone. This volatility raises questions about its current valuation.

DCF Earnings-based intrinsic value is $1295.53, compared to the current price of $1561.96 (margin of safety: -20.6%) DCF Free Cash Flow (FCF)-based intrinsic value is $1912.47, suggesting a second opinion on valuation. GF Score™ of 85/100 indicates strong financial health, but the low predictability rank of 1/5 stars suggests caution in relying solely on DCF inputs. What Is FIX Worth? DCF Earnings-Based Model The DCF earnings-based model for Comfort Systems USA Inc utilizes a two-stage approach to estimate intrinsic value. The first stage reflects a high growth phase over the next ten years, while the second stage accounts for a more stable growth rate thereafter. Below are the key assumptions used in this model:

Parameter Value Current EPS (TTM, excl. non-recurring) $41.46 10-Year Growth Rate 33.2% 10-Year Treasury Rate 4.64% Discount Rate (ceil(Treasury) + 6%) 11% Terminal Growth Rate 4% In the growth phase (Years 1-10), the EPS is projected to grow at 33.2% annually, discounted at a rate of 11%. The terminal phase (Years 11-20) assumes a more modest growth rate of 4%, also discounted at 11%. The calculation summary is as follows:

Stage Description Value Growth Stage (Years 1-10) EPS growing at 33.2%, discounted at 11% $536.76 Terminal Stage (Years 11-20) 4% terminal growth, discounted at 11% $758.77 Intrinsic Value Growth + Terminal $1295.53 With the current price at $1561.96, the intrinsic value of $1295.53 indicates that the stock is modestly overvalued, with a margin of safety of -20.6%. It is important to note that GuruFocus uses EPS excluding non-recurring items, as research shows a stronger correlation between stock prices and earnings than with free cash flow. For further analysis, you can visit the FIX DCF Calculator.

What Does the Free Cash Flow DCF Say? The Free Cash Flow (FCF)-based intrinsic value for Comfort Systems USA Inc is calculated at $1912.47. This figure presents a contrasting perspective compared to the earnings-based DCF, suggesting that while the earnings model indicates overvaluation, the FCF model points towards a modest undervaluation with an 18.3% margin of safety. This discrepancy highlights the importance of considering multiple valuation methods.

How Does GF Value™ Compare to the DCF Models? The GF Value™ for Comfort Systems USA Inc stands at $793.13, providing yet another layer of valuation insight. This proprietary measure from GuruFocus is derived from historical trading multiples, past business growth, and future performance estimates. The divergence among the three models—earnings DCF, FCF DCF, and GF Value™—suggests a complex valuation landscape for FIX. For more details, visit the GF Value™ page.

What Does FIX's GF Score™ Tell Us? The GF Score™ evaluates a stock's overall quality based on various factors, including financial strength, profitability, growth potential, valuation, and momentum. For Comfort Systems USA Inc, the GF Score™ is 85/100, indicating robust financial health. However, the predictability rank of 1/5 stars suggests that the DCF model may be less reliable for this stock due to its lower predictability. Below is a summary of the GF Score™ metrics:

Metric Rating GF Score™ 85/100 Financial Strength 9/10 Profitability 10/10 Growth 10/10 Valuation 1/10 Momentum 6/10 For more information, you can check the FIX stock page.

Key Assumptions and Limitations It is crucial to recognize that DCF models are highly sensitive to assumptions regarding growth rates and discount rates. Stocks with low predictability ratings, such as Comfort Systems USA Inc, yield less reliable DCF estimates. The terminal growth rate of 4% is a simplifying assumption that may not reflect future realities.

What This Means for Investors In synthesizing the three valuation models—DCF earnings, DCF FCF, and GF Value™—we find a notable tension. The earnings DCF suggests that FIX is modestly overvalued, while the FCF DCF indicates a modest undervaluation. The GF Value™ further complicates the picture, suggesting significant overvaluation. Additionally, the guru ownership signal shows that 15 gurus currently hold the stock, with 9 adding to their positions and 5 trimming their stakes, while insiders have sold $156.3M worth of shares over the past year. This mixed signal warrants caution for potential investors. For a deeper dive into the valuation, visit the FIX DCF Calculator.

Frequently Asked Questions What is FIX's intrinsic value based on DCF?

Answer: earnings-based $1295.53, FCF-based $1912.47

Is FIX overvalued or undervalued?

Answer: The earnings DCF indicates it is overvalued, while the FCF DCF suggests it is undervalued, and GF Value™ shows significant overvaluation.

How reliable is the DCF model for FIX?

Answer: The predictability rank of 1/5 indicates that the DCF model is less reliable for this stock.

This stock alert was generated using automated technology and GuruFocus financial data to provide readers with timely and accurate market reporting. This content was reviewed by GuruFocus editorial team prior to publication. Please send any questions or comments about this story to [email protected].

Disclosures I/We may personally own shares in some of the companies mentioned above. However, those positions are not material to either the company or to my/our portfolios.

For Immediate ReleaseChicago, IL – August 24, 2026 – Today, Zacks Equity Comfort Systems USA (FIX - Free Report) , Carrier Global Corp. (CARR - Free Report) and SPX Technologies, Inc. (SPXC - Free Report)

Industry: HVAC

Link: https://www.zacks.com/commentary/2978143/3-air-conditioner-heating-stocks-to-buy-as-hvac-demand-grows

The Zacks Building Products - Air Conditioner & Heating industry continues to benefit from several favorable trends in 2026. Rapid data center development is driving demand for specialized and energy-efficient cooling systems, while electrification and tighter efficiency standards are supporting heat pumps and other advanced HVAC solutions. Rising adoption of smart controls and connected systems, along with steady service and aftermarket demand, provides further support.

On the downside, weakness in single-family construction and cautious consumer spending continue to limit residential HVAC demand, increasing dependence on replacement activity. Tariffs, commodity and freight inflation also create cost pressures, while investments in new manufacturing capacity can weigh on margins through start-up costs and lower initial utilization. Despite these challenges, companies such as Comfort Systems USA, Carrier Global Corp. and SPX Technologies, Inc. are also expanding their opportunities through acquisitions, digital capabilities and service-oriented business models, while growing demand for indoor air quality and mission-critical cooling supports recurring revenue streams.

Industry DescriptionThe Zacks Building Products - Air Conditioner & Heating industry comprises designers, manufacturers, and marketers of a broad range of products for heating, ventilation, air conditioning, and refrigeration markets. The products include rooftop units, chillers, air-handling units, condensing units and coils. 

The industry players also supply thermostats, insulation materials, refrigerants, grills, registers, sheet metal, tools, concrete pads, tape and adhesives. Air conditioning and heating equipment are sold in residential replacement, commercial and industrial HVAC (heating, ventilation and air conditioning), as well as residential new construction markets.

4 Trends Shaping the Future of the Air Conditioner & Heating IndustryData Center Boom Fuels Commercial HVAC Demand: Rapid investment in AI, cloud computing and hyperscale data centers is emerging as a major growth driver for the U.S. Air Conditioner and Heating industry. These facilities require large, reliable and energy-efficient cooling systems to manage increasingly dense computing workloads. Demand is expanding across air- and water-cooled chillers, custom air handlers, cooling towers, dry and adiabatic cooling systems and related equipment. 

Strong project pipelines are also encouraging manufacturers to expand production capacity and improve throughput. Importantly, hyperscale and colocation projects generally provide greater forward visibility because cooling equipment must be secured well before facilities become operational, supporting a favorable multiyear demand outlook. 

Electrification, Efficiency Upgrades and Smart HVAC Drive Growth: Electrification, tighter efficiency standards and smart-building adoption are supporting U.S. HVAC industry growth in 2026. Demand for electric heat pumps, high-SEER air conditioners and low-GWP refrigerant systems is rising as customers seek lower energy use and compliance with stricter regulations. Federal and state incentives are helping offset upgrade costs, while aging equipment supports resilient replacement demand.

Meanwhile, HVAC systems are becoming more connected through intelligent controls, smart thermostats, humidification systems and actuated valves, improving efficiency, performance and operational visibility. This shift toward higher-value, connected equipment is also expanding service and aftermarket opportunities across residential and commercial markets.

Housing Weakness Limits Residential HVAC Recovery: Residential HVAC demand remains under pressure from persistent weakness in the U.S. housing market. New single-family construction continues to face challenges, while cautious consumer spending is restraining discretionary repair and remodeling activity. A meaningful recovery in residential construction is not expected in 2026, limiting demand for HVAC systems tied to new homes. 

Although earlier channel destocking is fading, underlying demand remains subdued and increasingly reliant on replacement activity rather than new installations. These conditions could keep residential HVAC volumes under pressure and make the segment more vulnerable to housing affordability constraints, elevated borrowing costs and continued consumer caution.

Tariffs, Inflation and Capacity Costs Pressure Margins: Cost pressures remain a key challenge for the U.S. Air Conditioner and Heating industry in 2026. Tariffs are raising costs for certain materials and components, while commodity, freight and other inflationary pressures add uncertainty to the price-cost equation. Pricing actions can offset some of these pressures, but tariff-related price increases do not necessarily translate into higher margins.

At the same time, manufacturers are rapidly expanding capacity to meet strong commercial and data center demand. New facilities and production lines can initially generate start-up costs, lower utilization and operating inefficiencies. Higher utilization, sourcing improvements and productivity gains will therefore be important for margin improvement.

Zacks Industry Rank Indicates Bright ProspectsThe Zacks Building Products - Air Conditioner & Heating industry is a nine-stock group within the broader Zacks Construction sector. The industry currently carries a Zacks Industry Rank #32, which places it in the top 13% of more than 250 Zacks industries. 

The group’s Zacks Industry Rank, which is basically the average of the Zacks Rank of all the member stocks, indicates optimistic near-term prospects. Our research shows that the top 50% of the Zacks-ranked industries outperform the bottom 50% by a factor of more than 2 to 1.

The industry’s positioning in the top 50% of the Zacks-ranked industries is a result of a higher earnings outlook for the constituent companies in aggregate. Looking at the aggregate earnings estimate revisions, it appears that analysts are gradually gaining confidence in this group’s earnings growth potential. Since June 2026, the industry’s earnings estimates for 2026 and 2027 have increased to $5.11 per share (from $4.91) and $5.95 per share (from $5.70), respectively.

We highlight a few stocks that investors may consider adding to their portfolios. First, we examine the industry’s shareholder returns and current valuation backdrop.

Industry Outperforms Sector, Lags S&P 500The Zacks Air Conditioner & Heating industry has outperformed the broader Zacks Construction sector but lagged the Zacks S&P 500 Composite over the past year.

In the same time frame, the industry has gained 16.7% compared with the broader sector’s 6.5% rise. Meanwhile, the Zacks S&P 500 Composite has gained 23.4% during the period.

Industry's Current ValuationOn the basis of the forward 12-month price to earnings, which is a commonly used multiple for valuing Air Conditioner and Heating stocks, the industry is currently trading at 23.87X compared with the S&P 500’s 20.55X and the sector’s 19.99X.

Over the past five years, the industry has traded as high as 30.77X, as low as 15.87X and at a median of 23.97X.

3 Air Conditioner and Heating Stocks to Buy NowBelow, we have discussed three stocks from the Zacks Air Conditioner & Heating universe with solid growth potential.

Comfort Systems: Based in Houston, TX, the company is a national provider of comprehensive heating, ventilation and air conditioning installation, along with maintenance, repair and replacement services. Comfort Systems is benefiting from strong demand across technology and other industrial markets, supported by continued data center construction and rising needs for complex mechanical and electrical infrastructure. Direct relationships with hyperscalers provide visibility into future projects, while sustained customer demand supports further expansion of its modular operations.  

The company is also broadening its modular customer base through opportunities with frontier labs and colocation providers.  Strong institutional demand, disciplined project selection and skilled tradespeople further support execution. Meanwhile, the growing installed base of data centers creates a longer-term opportunity to expand recurring service and maintenance work.

 Comfort Systems currently carries a Zacks Rank #1 (Strong Buy). The stock has gained 142.6% over the past year. FIX has seen an upward estimate revision for 2026 earnings per share (EPS) to $45.86 from $43.05 over the past 30 days. The estimated figure indicates 58.8% year-over-year growth in 2026. Comfort Systems surpassed earnings estimates in all the trailing four quarters, with the average surprise being 34.6%. Again, Comfort Systems’ trailing 12-month return on equity of 53.6% is better than its peer group average of 16.9%. It has a VGM Score of B. You can see the complete list of today’s Zacks #1 Rank stocks here.

SPX Technologies: Headquartered in Charlotte, NC, SPX Technologies supplies infrastructure equipment for global HVAC and detection and measurement markets. SPX Technologies is benefiting from robust demand for data center cooling solutions, supported by hyperscaler, colocation and neocloud customers. Capacity expansions, improved production flow, lean initiatives and higher throughput are strengthening its ability to meet this demand.  

The Neptronic acquisition adds another growth avenue by broadening SPX’s HVAC portfolio with intelligent controls, electric heating, humidification and actuated valves, while expanding its addressable markets.  Strong customer relationships and global distribution channels provide cross-selling opportunities. Meanwhile, healthy project activity, innovation and synergy initiatives in Detection & Measurement, along with an active acquisition pipeline, should support further growth.

SPX Technologies currently carries a Zacks Rank #2. The stock has gained 7.4% over the past year. SPXC has seen an upward estimate revision for 2026 EPS to $8.41 from $8.06 over the past 30 days. The estimated figure indicates 24.4% year-over-year growth in 2026. SPXC surpassed earnings estimates in all the trailing four quarters, with the average surprise being 8.6%. Again, SPXC’s trailing 12-month return on equity is 16.5%.

Carrier: Headquartered in Palm Beach Gardens, FL, Carrier provides intelligent climate and energy solutions worldwide. Carrier has been benefiting from robust commercial HVAC demand, particularly from data centers, supported by growing hyperscaler and colocation investments and capacity expansion. Growing adoption of liquid cooling provides another opportunity as AI infrastructure becomes more power intensive. 

The recovery in residential and light commercial HVAC, supported by replacement demand and improving channel conditions, adds momentum. In Europe, heat-pump adoption, supportive subsidies, high natural-gas prices and new product launches remain favorable. Carrier is also benefiting from expanding aftermarket opportunities, while the 75F acquisition strengthens its intelligent-building, AI-enabled controls and systems-integration capabilities, broadening its addressable markets.

Carrier currently carries a Zacks Rank #2 (Buy). The stock has lost 11.2% over the past year. Carrier has seen an upward estimate revision for 2026 EPS to $2.85 from $2.79 over the past 30 days. The estimated figure indicates 10% year-over-year growth in 2026. Carrier surpassed earnings estimates in three of the trailing four quarters and missed on the other, with the average surprise being 8.5%.

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The Zacks Building Products - Air Conditioner & Heating industry continues to benefit from several favorable trends in 2026. Rapid data center development is driving demand for specialized and energy-efficient cooling systems, while electrification and tighter efficiency standards are supporting heat pumps and other advanced HVAC solutions. Rising adoption of smart controls and connected systems, along with steady service and aftermarket demand, provides further support.

On the downside, weakness in single-family construction and cautious consumer spending continue to limit residential HVAC demand, increasing dependence on replacement activity. Tariffs, commodity and freight inflation also create cost pressures, while investments in new manufacturing capacity can weigh on margins through start-up costs and lower initial utilization. Despite these challenges, companies such as Comfort Systems USA (FIX - Free Report) , Carrier Global Corporation (CARR - Free Report) and SPX Technologies, Inc. (SPXC - Free Report)  are also expanding their opportunities through acquisitions, digital capabilities and service-oriented business models, while growing demand for indoor air quality and mission-critical cooling supports recurring revenue streams.

Industry Description The Zacks Building Products - Air Conditioner & Heating industry comprises designers, manufacturers, and marketers of a broad range of products for heating, ventilation, air conditioning, and refrigeration markets. The products include rooftop units, chillers, air-handling units, condensing units and coils. The industry players also supply thermostats, insulation materials, refrigerants, grills, registers, sheet metal, tools, concrete pads, tape and adhesives. Air conditioning and heating equipment are sold in residential replacement, commercial and industrial HVAC (heating, ventilation and air conditioning), as well as residential new construction markets.

4 Trends Shaping the Future of the Air Conditioner & Heating Industry Data Center Boom Fuels Commercial HVAC Demand: Rapid investment in AI, cloud computing and hyperscale data centers is emerging as a major growth driver for the U.S. Air Conditioner and Heating industry. These facilities require large, reliable and energy-efficient cooling systems to manage increasingly dense computing workloads. Demand is expanding across air- and water-cooled chillers, custom air handlers, cooling towers, dry and adiabatic cooling systems and related equipment. Strong project pipelines are also encouraging manufacturers to expand production capacity and improve throughput. Importantly, hyperscale and colocation projects generally provide greater forward visibility because cooling equipment must be secured well before facilities become operational, supporting a favorable multiyear demand outlook.

Electrification, Efficiency Upgrades and Smart HVAC Drive Growth: Electrification, tighter efficiency standards and smart-building adoption are supporting U.S. HVAC industry growth in 2026. Demand for electric heat pumps, high-SEER air conditioners and low-GWP refrigerant systems is rising as customers seek lower energy use and compliance with stricter regulations. Federal and state incentives are helping offset upgrade costs, while aging equipment supports resilient replacement demand.

Meanwhile, HVAC systems are becoming more connected through intelligent controls, smart thermostats, humidification systems and actuated valves, improving efficiency, performance and operational visibility. This shift toward higher-value, connected equipment is also expanding service and aftermarket opportunities across residential and commercial markets.

Housing Weakness Limits Residential HVAC Recovery: Residential HVAC demand remains under pressure from persistent weakness in the U.S. housing market. New single-family construction continues to face challenges, while cautious consumer spending is restraining discretionary repair and remodeling activity. A meaningful recovery in residential construction is not expected in 2026, limiting demand for HVAC systems tied to new homes. Although earlier channel destocking is fading, underlying demand remains subdued and increasingly reliant on replacement activity rather than new installations. These conditions could keep residential HVAC volumes under pressure and make the segment more vulnerable to housing affordability constraints, elevated borrowing costs and continued consumer caution.

Tariffs, Inflation and Capacity Costs Pressure Margins: Cost pressures remain a key challenge for the U.S. Air Conditioner and Heating industry in 2026. Tariffs are raising costs for certain materials and components, while commodity, freight and other inflationary pressures add uncertainty to the price-cost equation. Pricing actions can offset some of these pressures, but tariff-related price increases do not necessarily translate into higher margins.

At the same time, manufacturers are rapidly expanding capacity to meet strong commercial and data center demand. New facilities and production lines can initially generate start-up costs, lower utilization and operating inefficiencies. Higher utilization, sourcing improvements and productivity gains will therefore be important for margin improvement.

Zacks Industry Rank Indicates Bright Prospects The Zacks Building Products - Air Conditioner & Heating industry is a nine-stock group within the broader Zacks Construction sector. The industry currently carries a Zacks Industry Rank #32, which places it in the top 13% of more than 250 Zacks industries.

The group’s Zacks Industry Rank, which is basically the average of the Zacks Rank of all the member stocks, indicates optimistic near-term prospects. Our research shows that the top 50% of the Zacks-ranked industries outperform the bottom 50% by a factor of more than 2 to 1.

The industry’s positioning in the top 50% of the Zacks-ranked industries is a result of a higher earnings outlook for the constituent companies in aggregate. Looking at the aggregate earnings estimate revisions, it appears that analysts are gradually gaining confidence in this group’s earnings growth potential. Since June 2026, the industry’s earnings estimates for 2026 and 2027 have increased to $5.11 per share (from $4.91) and $5.95 per share (from $5.70), respectively.

We highlight a few stocks that investors may consider adding to their portfolios. First, we examine the industry’s shareholder returns and current valuation backdrop.

Industry Outperforms Sector, Lags S&P 500 The Zacks Air Conditioner & Heating industry has outperformed the broader Zacks Construction sector but lagged the Zacks S&P 500 Composite over the past year.

In the same time frame, the industry has gained 16.7% compared with the broader sector’s 6.5% rise. Meanwhile, the Zacks S&P 500 Composite has gained 23.4% during the period.

One-Year Price Performance

Industry's Current Valuation On the basis of the forward 12-month price to earnings, which is a commonly used multiple for valuing Air Conditioner and Heating stocks, the industry is currently trading at 23.87X compared with the S&P 500’s 20.55X and the sector’s 19.99X.

Over the past five years, the industry has traded as high as 30.77X, as low as 15.87X and at a median of 23.97X, as the chart below shows.

Industry’s P/E Ratio (Forward 12-Month) Versus S&P 500

Industry’s P/E Ratio (Forward 12-Month) Versus Sector

3 Air Conditioner and Heating Stocks to Buy Now Below, we have discussed three stocks from the Zacks Air Conditioner & Heating universe with solid growth potential.

Comfort Systems: Based in Houston, TX, the company is a national provider of comprehensive heating, ventilation and air conditioning installation, along with maintenance, repair and replacement services. Comfort Systems is benefiting from strong demand across technology and other industrial markets, supported by continued data center construction and rising needs for complex mechanical and electrical infrastructure. Direct relationships with hyperscalers provide visibility into future projects, while sustained customer demand supports further expansion of its modular operations.  The company is also broadening its modular customer base through opportunities with frontier labs and colocation providers.  Strong institutional demand, disciplined project selection and skilled tradespeople further support execution. Meanwhile, the growing installed base of data centers creates a longer-term opportunity to expand recurring service and maintenance work.

 Comfort Systems currently carries a Zacks Rank #1 (Strong Buy). The stock has gained 142.6% over the past year. FIX has seen an upward estimate revision for 2026 earnings per share (EPS) to $45.86 from $43.05 over the past 30 days. The estimated figure indicates 58.8% year-over-year growth in 2026. Comfort Systems surpassed earnings estimates in all the trailing four quarters, with the average surprise being 34.6%. Again, Comfort Systems’ trailing 12-month return on equity of 53.6% is better than its peer group average of 16.9%. It has a VGM Score of B. You can see the complete list of today’s Zacks #1 Rank stocks here. .

Price and Consensus: FIX

SPX Technologies: Headquartered in Charlotte, NC, SPX Technologies supplies infrastructure equipment for global HVAC and detection and measurement markets. SPX Technologies is benefiting from robust demand for data center cooling solutions, supported by hyperscaler, colocation and neocloud customers. Capacity expansions, improved production flow, lean initiatives and higher throughput are strengthening its ability to meet this demand.  The Neptronic acquisition adds another growth avenue by broadening SPX’s HVAC portfolio with intelligent controls, electric heating, humidification and actuated valves, while expanding its addressable markets.  Strong customer relationships and global distribution channels provide cross-selling opportunities. Meanwhile, healthy project activity, innovation and synergy initiatives in Detection & Measurement, along with an active acquisition pipeline, should support further growth.

SPX Technologies currently carries a Zacks Rank #2. The stock has gained 7.4% over the past year. SPXC has seen an upward estimate revision for 2026 EPS to $8.41 from $8.06 over the past 30 days. The estimated figure indicates 24.4% year-over-year growth in 2026. SPXC surpassed earnings estimates in all the trailing four quarters, with the average surprise being 8.6%. Again, SPXC’s trailing 12-month return on equity is 16.5%.

Price and Consensus: SPXC

Carrier: Headquartered in Palm Beach Gardens, FL, Carrier provides intelligent climate and energy solutions worldwide. Carrier has been benefiting from robust commercial HVAC demand, particularly from data centers, supported by growing hyperscaler and colocation investments and capacity expansion. Growing adoption of liquid cooling provides another opportunity as AI infrastructure becomes more power intensive. The recovery in residential and light commercial HVAC, supported by replacement demand and improving channel conditions, adds momentum. In Europe, heat-pump adoption, supportive subsidies, high natural-gas prices and new product launches remain favorable. Carrier is also benefiting from expanding aftermarket opportunities, while the 75F acquisition strengthens its intelligent-building, AI-enabled controls and systems-integration capabilities, broadening its addressable markets.

Carrier currently carries a Zacks Rank #2 (Buy). The stock has lost 11.2% over the past year. Carrier has seen an upward estimate revision for 2026 EPS to $2.85 from $2.79 over the past 30 days. The estimated figure indicates 10% year-over-year growth in 2026. Carrier surpassed earnings estimates in three of the trailing four quarters and missed on the other, with the average surprise being 8.5%.

Price and Consensus: CARR

Key Takeaways Comfort Systems' first-half same-store revenues surged 47%, supporting strong 2026 growth expectations.FIX's backlog reached $14.1B, up 73%, with technology customers accounting for 58% of first-half revenues.Modular capacity is expected to reach about 5 million square feet by late summer 2027. Comfort Systems USA, Inc. (FIX - Free Report) appears poised to carry strong momentum into 2027, supported by robust demand, record backlog and expanding capacity. The company’s second-quarter 2026 performance highlighted the strength of its growth engine, with same-store revenues jumping 44% year over year. For the first six months of 2026, same-store revenues increased 47%, prompting management to expect full-year 2026 same-store growth in the mid- to high-30% range.

A key catalyst is Comfort Systems’ record backlog, which reached $14.1 billion at the end of the second quarter of 2026, up 73% year over year, while same-store backlog rose 69%. Technology demand remained particularly strong, accounting for 58% of first-half revenues compared with 40% a year ago. Industrial customers represented 75% of revenues, providing additional support for the project pipeline.

The company is also expanding its Modular operations to capitalize on sustained customer demand. Modular capacity is expected to exceed 4 million square feet by year-end and reach approximately 5 million square feet by late summer 2027. Management noted that expansion is being supported by customer volume commitments, reducing the risk associated with capacity investments. However, maintaining such elevated growth will become more challenging against increasingly difficult comparisons, particularly in the second half of 2026. Management acknowledged that upcoming quarters will face heavy year-over-year comparisons.

Overall, Comfort Systems’ strong backlog, technology exposure, Modular expansion and healthy demand position it well for continued growth. Still, the pace may moderate as comparisons toughen.

Comfort Systems, Carrier Global & AAON: Cooling Into a New Era?Comfort Systems stands out among Carrier Global Corporation (CARR - Free Report) and AAON, Inc. (AAON - Free Report) for its direct exposure to large-scale infrastructure projects, supported by a record $14.1 billion backlog, up 73% year over year.

AAON is also benefiting from surging data-center demand, with the second-quarter backlog near $2 billion and BASX backlog up 185% year over year, driven by custom-engineered cooling solutions. Carrier Global offers a broader HVAC portfolio and benefits from commercial HVAC, energy-efficiency and aftermarket opportunities.

FIX’s project execution and modular capabilities provide greater exposure to the infrastructure boom, while AAON leverages specialized cooling technology and Carrier Global gains from diversification and recurring service demand.

FIX Stock’s Price Performance & Valuation TrendShares of this Texas-based heating, ventilation, air conditioning and electrical contracting service provider have climbed 20% over the past six months, outperforming the Zacks Building Products - Air Conditioner and Heating industry, the Zacks Construction sector and the S&P 500 Index.

Image Source: Zacks Investment Research

FIX stock is currently trading at a premium compared with the industry peers, with a forward 12-month price-to-earnings (P/E) ratio of 31.73, as the trend lines suggest below.

Image Source: Zacks Investment Research

Earnings Estimate Trend of FIXFIX’s earnings estimates for 2026 and 2027 have increased over the past 30 days to $45.86 and $57.81 per share, respectively. The revised estimates for 2026 and 2027 imply year-over-year growth of 58.8% and 26.1%, respectively.

Image Source: Zacks Investment Research

Comfort Systems currently carries a Zacks Rank #2 (Buy). You can see the complete list of today’s Zacks #1 Rank (Strong Buy) stocks here.

Key Takeaways FIX's 2026 and 2027 EPS estimates rose, with no downward revisions in the past 30 days.Record backlog hit $14.06B as technology demand and Modular expansion strengthened revenue visibility.Strong margins, cash flow and balance sheet support growth, though premium valuation raises execution risks. Wall Street’s confidence in Comfort Systems USA, Inc. (FIX - Free Report) is strengthening after another quarter of rapid growth, record backlog and strong cash generation. The estimate revision trend is one of the strongest arguments supporting FIX. Over the past 30 days, the Zacks Consensus Estimate for 2026 earnings has increased to $45.48 per share from $43.08, while the 2027 estimate has risen to $57.27 from $52.59. There have been no downward revisions. The current estimates imply earnings growth of 57.5% in 2026 and another 25.9% in 2027.

Revenue expectations also point to sustained expansion, with the Zacks Consensus Estimate indicating growth of 38.3% in 2026 and 18.4% in 2027.

FIX Estimate Revision Trend

Image Source: Zacks Investment Research

Brokerage sentiment has strengthened as well. FIX’s Average Brokerage Recommendation stands at 1.33 on a scale of 1 to 5, compared with 1.50 a month ago. Of the 12 recommendations, 10 are Strong Buy, representing 83.3% of the total compared with 75% a month earlier. Wall Street’s average price target of $2,139.88 suggests nearly 28% upside from the latest closing price.

The fundamental picture supports much of that optimism. Second-quarter revenues jumped 50.3% year over year to $3.27 billion, while earnings nearly doubled to $12.53 per share from $6.53. Operating cash flow reached $1.14 billion, and backlog climbed to a record $14.06 billion from $8.12 billion a year earlier.

Image Source: Zacks Investment Research

FIX's Backlog and Technology Demand Support Further GrowthComfort Systems entered the second half of 2026 with unusually strong revenue visibility. Backlog reached a record $14.06 billion at June-end, rising 73% year over year and 13% sequentially. Same-store backlog entering the third quarter was 69% above the prior-year level, while project pipelines remained at historically high levels.

Technology remains the biggest driver. Industrial customers accounted for 75% of first-half revenues, while technology alone represented 58%, up sharply from 40% in the prior-year period. That gives Comfort Systems significant exposure to ongoing investment in data centers and other complex technology infrastructure.

The company is also seeing strength across both major operating businesses. Electrical revenues increased 81% in the second quarter, while Mechanical revenues rose 40%. Management now expects same-store revenue growth for 2026 to finish in the mid-to-high 30% range after growing 47% during the first six months.

Modular Expansion Adds Another Growth EngineComfort Systems’ Modular business is becoming an increasingly important part of the growth story. Modular accounted for 17% of year-to-date revenues, supported by demand from large technology customers. The company is also working to broaden its customer base through pilot projects with frontier labs and colocation providers.

Capacity expansion should support this opportunity. Comfort Systems has more than 3.5 million square feet dedicated to Modular production and expects to exceed 4 million square feet by the end of 2026. Capacity is expected to reach roughly 5 million square feet by late summer 2027. Management emphasized that expansion is tied to meaningful multiyear customer commitments rather than speculative construction.

Acquisitions provide another source of growth. Hunt Electric, acquired in May, is expected to contribute about $250 million of annualized revenues and expands Comfort Systems’ electrical capabilities in Utah.

Margin Strength and Cash Flow Reinforce the Bull CaseGrowth is translating into better profitability rather than simply higher revenues. Mechanical gross margin improved to 25.6% from 22.9% in the second quarter, while Electrical gross margin expanded to 26.4% from 25.3%. Management expects gross margins to remain within the strong ranges recorded recently. Meanwhile, SG&A fell to 8.8% of revenues from 9.7%, helping operating margin rise sharply.

Cash generation is another major strength. Second-quarter operating cash flow reached $1.14 billion, while free cash flow was $999.3 million. For the first six months, free cash flow reached $1.24 billion versus $113.1 million a year earlier.

The balance sheet provides considerable flexibility. Cash stood at $1.85 billion at June-end compared with $981.9 million at 2025-end, while total debt fell to roughly $54 million from $145 million. This gives Comfort Systems room to expand capacity, pursue acquisitions and return capital to shareholders.

FIX’s Rally and Premium Valuation Raise the BarInvestors should not overlook how much optimism is already embedded in FIX shares. The stock has surged 79.4% year to date, easily outperforming the Zacks Building Products - Air Conditioner and Heating industry’s 26.2% gain, the Zacks Construction sector’s 10.1% advance and the S&P 500’s 13.1% rise.

FIX Price Performance (YTD)

Image Source: Zacks Investment Research

That performance has pushed valuation higher. FIX trades at 31.79X forward 12-month earnings, above the industry’s 24.41X and its five-year median of 22.89X. Although the multiple remains below the upper end of its five-year range of 13.32X-48.14X, investors are paying a sizable premium for continued earnings growth.

The valuation means execution needs to remain strong. Any slowdown in backlog conversion, margin expansion or technology spending could make the shares more sensitive to earnings disappointments.

FIX Stock’s Valuation (P/E F12M)

Image Source: Zacks Investment Research

Technology Exposure and Execution Risks Need WatchingComfort Systems’ rising technology exposure is a powerful tailwind but also creates concentration risk. Technology generated 58% of first-half revenues compared with 40% a year ago. Meanwhile, 90% of revenues came from construction, with new-building construction alone accounting for 75%. A meaningful slowdown in data-center, semiconductor or other technology-related capital spending could therefore weigh on growth.

Rapid expansion also requires substantial investment. Management expects 2026 capital expenditures to approximate 5% of revenues as it expands production facilities and Modular capacity.

Labor availability, specialty-material costs, inflation, supply-chain disruption, project cancellations and the challenge of integrating acquisitions remain other risks. The company also cautions that backlog may not always translate fully into revenues or profits. These factors matter more when a stock carries a premium valuation.

How Does FIX Compare With EMCOR, Sterling and Quanta?Comfort Systems competes with EMCOR Group (EME - Free Report) , Sterling Infrastructure (STRL - Free Report) and Quanta Services (PWR - Free Report) across different parts of the mission-critical infrastructure market. EMCOR is a close competitor in mechanical and electrical construction and building services, while Sterling Infrastructure has significant exposure to data centers, semiconductor facilities and advanced manufacturing. Quanta Services competes in electrical construction and integrated infrastructure solutions.

FIX’s 79.5% YTD gain leads Sterling Infrastructure’s 72.6%, Quanta Services’ 56.6% and EMCOR’s 32.3%. The valuation picture is more mixed. Comfort Systems trades at 31.79X forward earnings compared with 23.87X for EMCOR and 22.39X for Sterling Infrastructure, making FIX considerably more expensive than both EMCOR and Sterling Infrastructure. However, Quanta Services trades higher at 37.41X. Thus, FIX’s premium to EMCOR and Sterling Infrastructure requires stronger growth, while its discount to Quanta Services offers some relative valuation support.

Buy, Hold or Sell FIX Stock Now?Comfort Systems’ premium valuation and heavy technology exposure are reasons for investors to remain selective, particularly after the stock’s 79.4% rally. Yet the fundamental momentum remains difficult to ignore. Record backlog, strong technology and Modular demand, expanding margins, exceptional cash generation and a strong balance sheet provide visibility into 2027.

More importantly, analysts are raising earnings estimates rather than trimming them. The improvement in brokerage sentiment and nearly 28% upside implied by Wall Street’s average price target further support the investment case.

With the 2026 and 2027 consensus estimate for EPS moving sharply higher and FIX currently carrying a Zacks Rank #1 (Strong Buy), the balance of growth, earnings revisions and business momentum supports a buy stance despite the stock’s premium valuation. You can see the complete list of today’s Zacks #1 Rank stocks here.

Key Takeaways Comfort Systems' backlog surged 73% to $14.06 billion, providing strong revenue visibility into 2027.Technology projects drove 58.7% of Q2 revenue, while modular operations expanded with capacity investments.Gross margin rose to 25.9% as stronger execution and cost leverage boosted operating profitability. Comfort Systems USA, Inc. (FIX - Free Report) has turned technology infrastructure demand, expanding modular operations and better project execution into rapid growth. Second-quarter revenues rose 50.3% year over year, while earnings per share increased 91.9%.

The key investor question is whether these advantages can keep supporting growth as the company moves into tougher comparisons and a larger operating base.

Comfort Systems Backlog Extends Growth VisibilityBacklog reached $14.06 billion at June 30, 2026, up 73% from the prior-year period and 13% sequentially. Same-store backlog increased to $13.7 billion from $8.12 billion a year earlier.

That backlog supports revenue visibility into 2027. Comfort Systems expects roughly 65% to 75% of remaining construction performance obligations to convert into revenues over the next 12 months.

FIX Gains From Technology Infrastructure DemandTechnology projects accounted for 58.7% of second-quarter revenues, up from 43% a year earlier. The mix shift shows how data center and related infrastructure work has become a larger driver of the company’s project base.

Bookings remained elevated across traditional construction and modular offerings. EMCOR Group, Inc. (EME - Free Report) , another mechanical and electrical construction services provider, offers investors a useful comparison point for demand tied to complex building systems. Quanta Services, Inc. (PWR - Free Report) is also relevant because power and communications infrastructure needs are increasingly tied to large-scale technology development.

Comfort Systems Expands Modular CapacityModular operations generated 17% of first-half revenues. The business gives Comfort Systems a scalable way to serve repeatable technology projects while moving more work into controlled production environments.

The company had more than 3.5 million square feet of dedicated modular capacity at the end of the second quarter. Management expects capacity to exceed 4 million square feet by year-end 2026 and reach about 5 million by late summer 2027, supported by customer commitments and investments in automation, robotics and fabrication equipment.

FIX Converts Scale Into Wider MarginsSecond-quarter 2026 gross margin expanded to 25.9% from 23.5% a year earlier. Operating margin improved to 17.1% from 13.8%, helped by stronger project execution, favorable mix and better cost leverage.

Selling, general and administrative expenses fell to 8.8% of revenues from 9.7%. Adjusted earnings before interest, taxes, depreciation and amortization rose 79.7% year over year to $600.5 million, showing that higher throughput is converting into broader profitability.

Comfort Systems Faces Capacity and Mix RisksLabor availability remains the company’s main growth constraint. Management continues to describe demand as stronger than available capacity, which means execution depends on hiring, training and deploying skilled workers across markets.

Capital spending is also elevated as Comfort Systems expands modular facilities and buys specialized equipment. Larger technology exposure adds another risk, since customer concentration, large projects and favorable estimate revisions can make quarterly margins more volatile even when end-market demand stays healthy.

FIX Signals Favor Growth but Not ValueComfort Systems’ backlog, technology mix and modular expansion support a growth-oriented operating story. The offset is that expectations have risen after a sharp stock advance and rapid earnings expansion.

The stock currently carries a Zacks Rank #3 (Hold), with a VGM Score of B. Its Growth Score of A aligns with the company’s revenue, earnings and backlog momentum, while the Value Score of D points to a less favorable valuation setup. You can see the complete list of today’s Zacks #1 Rank (Strong Buy) stocks here.

The Momentum Score of C reinforces a balanced near-term view. FIX still has clear operating strengths, but the ranking and scores suggest investors should weigh that growth profile against valuation and execution risks.

Comfort Systems USA (NYSE:FIX) reported second-quarter 2026 revenue above $3 billion for the first time, as demand from technology and industrial customers helped drive higher bookings, record backlog and sharply improved profitability.

Chief Executive Officer Brian Lane said the company generated $3.3 billion in quarterly revenue and earned $12.53 per share, a 92% increase from the prior-year period. The company’s backlog reached a record $14.1 billion at quarter-end, supported by continued technology-sector demand and favorable project margins.

“We had a fantastic quarter with amazing execution by our teams,” Lane said. “Demand remains strong, especially in technology, as we continue to book work with good margins and favorable working conditions for our valuable people.”

Revenue, Profit and Cash Flow Rise Chief Financial Officer Bill George said second-quarter revenue increased by $1.1 billion from a year earlier, with same-store revenue up 44%. Electrical-segment revenue rose 81%, while mechanical-segment revenue increased 40%.

For the first six months of 2026, same-store revenue grew 47%. The company expects full-year same-store revenue growth to finish in the mid- to high-30% range, George said.

Gross profit increased to $844 million from $510 million in the second quarter of 2025, while gross margin expanded to 25.9% from 23.5%. Mechanical gross margin rose to 25.6% from 22.9%, and electrical gross margin increased to 26.4% from 25.3%.

SG&A expense increased to $287 million from $210 million as the company invested in personnel and innovation, though SG&A as a percentage of revenue declined to 8.8% from 9.7%. Operating income rose 86% to $558 million, and operating margin increased to 17.1% from 13.8%.

Net income was $442 million, or $12.53 per share, compared with $231 million, or $6.53 per share, a year earlier. EBITDA increased 80% to $600 million, bringing trailing 12-month EBITDA to approximately $2 billion.

Free cash flow totaled $999 million in the quarter. George attributed the result partly to advanced customer cash, strong payment terms and broad-based project performance, rather than a single factor. He said the company expects cash flow over time to align with net income plus noncash expenses.

The company ended the quarter with a net cash position of more than $1.8 billion, despite acquisition spending and capital investments. It expects capital expenditures for the full year to equal approximately 5% of revenue, primarily supporting production facilities and modular capacity.

Backlog Expands as Technology Work Drives Demand President Trent McKenna said backlog increased by $1.6 billion sequentially, including a $1.4 billion same-store increase. Compared with a year earlier, total backlog increased $5.9 billion, or 73%, with $5.6 billion of the gain coming from same-store operations.

Same-store backlog entering the third quarter was 69% higher than a year earlier. McKenna said project pipelines remained at historically high levels, led by technology-sector construction and modular work.

Industrial customers accounted for 75% of first-half revenue. Technology, which is included within industrial, represented 58% of revenue, up from 40% in the prior year. Institutional markets, including education, healthcare and government, represented 17% of revenue. Commercial markets accounted for 8% of revenue. Construction represented 90% of revenue, while service represented 10%. New-building construction accounted for 75% of total revenue, including modular activity, while existing-building construction represented 15%. Modular revenue represented 17% of year-to-date revenue.

During the quarter, modular operations booked $510 million, enough to cover the business’s production activity and add roughly $500 million to backlog, according to George. The company said demand from customers remains consistent with its plans to expand modular manufacturing capacity.

Modular Capacity Plans Tied to Customer Commitments Comfort Systems USA has more than 3.5 million square feet of capacity dedicated to modular operations and expects to exceed 4 million square feet in production by year-end. It plans to reach approximately 5 million square feet of capacity by late summer 2027.

Management said the planned capacity expansion is principally intended to serve existing customers and existing orders. The company is pursuing pilot contracts with frontier labs and colocation providers, but said meaningful programmatic business from those newer customers would require additional manufacturing space.

George said the company will not add buildings solely on speculation and will expand only when customers provide meaningful multiyear commitments. He said recent capital investments have generated rapid returns, with projects producing what he described as full paybacks within one or two years.

Management said it does not see a slowdown in data-center demand despite public opposition and moratorium discussions in some markets. Lane said the company’s direct relationships with hyperscalers and key intermediaries provide visibility into customer plans, and that management sees “no letdown whatsoever” in their need to continue building capacity.

McKenna said much of the company’s current backlog consists of projects that were already planned and permitted. He added that modular capacity is more programmatic and can be directed toward customer locations as needed.

Acquisition and Capital Allocation The company also discussed its acquisition of Hunt Electric, a Utah-based electrical contractor that closed May 1. Lane said Hunt is expected to contribute approximately $250 million in annualized revenue.

McKenna said Hunt has begun pursuing opportunities jointly with Comfort Systems USA’s mechanical contractors in Utah and called it the premier electrical provider in that market.

Comfort Systems USA increased its quarterly dividend by $0.10 to $0.90 per share. George said capital allocation will continue to include investments in facilities, selective share repurchases and a patient approach to acquisitions.

Management also highlighted the longer-term service opportunity created by its growing data-center installed base. McKenna said service revenue increased 7% during the year and remains profitable, though the data-center service opportunity is expected to develop over time as newly constructed facilities move beyond warranty periods.

About Comfort Systems USA (NYSE:FIX) Comfort Systems USA, Inc is a U.S.-based mechanical contracting company that provides a range of heating, ventilation and air conditioning (HVAC) services to commercial, industrial and institutional customers. The company focuses on the design, installation, maintenance and repair of HVAC systems, and it supports projects from initial engineering and system selection through long-term service agreements and upgrades.

Its service offerings include new construction and retrofit installations, preventive and corrective maintenance, emergency repair, energy management and building automation systems.

Key Takeaways Comfort Systems' Q2 EPS is estimated to rise 59%, while revenues are projected to grow 35.4%.FIX's record backlog and data-center demand likely supported mechanical and electrical segment growth.Comfort Systems' margins likely benefited from project selection, pricing discipline and operating leverage. Comfort Systems USA, Inc. (FIX - Free Report) is slated to report its second-quarter 2026 results on July 23, after market close.

In the last reported quarter, the company’s earnings and revenues topped the Zacks Consensus Estimate by 46.2% and 18.1%, respectively. Adjusted earnings per share (EPS) of $10.51 grew a whopping 121.3% from $4.75 reported in the year-ago quarter. Revenues of $2.87 billion also increased 56.8% on a year-over-year basis.

FIX’s earnings topped the consensus mark in each of the trailing four quarters. The average surprise is shown in the chart below.

Image Source: Zacks Investment Research

How Are Estimates Placed for FIX Stock?The Zacks Consensus Estimate for second-quarter EPS has increased to $10.38 from $10.30 over the past 60 days. The estimate indicates 59% growth from the year-ago EPS of $6.53. The consensus mark for revenues is pegged at $2.94 billion, indicating a 35.4% year-over-year increase.

For 2025, Comfort Systems is expected to register a 30.6% increase from a year ago in revenues. Its EPS is expected to grow 49.2% from a year ago. Below is what to expect from the FIX stock.

Image Source: Zacks Investment Research

Image Source: Zacks Investment Research

Factors Likely to Have Defined FIX’s Q2 PerformanceStrong Backlog Likely Supported Revenues: Comfort Systems’ second-quarter 2026 revenues are expected to have remained robust, supported by continued execution of its record backlog and sustained demand from technology customers. Management indicated that data centers continue to dominate the company’s pipeline and backlog, providing strong revenue visibility entering the quarter. Demand from semiconductor manufacturing, industrial projects, healthcare, education and government markets is also likely to have supported project activity. The company’s nationwide footprint, expanding modular capabilities and strong execution across mechanical and electrical operations are expected to have further aided revenue conversion.

Segment-Wise: Comfort Systems operates through two main segments — Mechanical and Electrical. For second-quarter 2026, Comfort Systems’ Mechanical segment (which accounted for 73.3% of total revenues in 2025) is expected to have benefited from healthy demand for HVAC, piping, modular fabrication and process systems tied to data centers and advanced manufacturing projects. Continued investment in modular production capacity likely supported project execution. The Zacks Consensus Estimate for the segment’s revenues is currently pegged at $2.12 billion for the second quarter, up from $1.64 billion reported a year ago.

The Electrical segment (26.7%) is also expected to have delivered strong growth, driven by demand for power distribution and controls work associated with hyperscale data centers and other mission-critical facilities. The recently announced electrical acquisition is unlikely to have materially affected second-quarter results but should strengthen the business over time. The Zacks Consensus Estimate for the segment’s revenues is currently pegged at $800 million for the second quarter, up from $534.6 million reported a year ago.

Margins Likely Healthy: Margins are expected to have remained healthy in the second quarter. Management expects gross margins to stay within the strong ranges achieved in recent quarters, supported by disciplined project selection, favorable project execution, pricing discipline and operating leverage. Continued investments in modular manufacturing should enhance long-term efficiency, though labor availability remains the company's primary operational constraint rather than demand.

Overall, management did not issue specific second-quarter guidance but expressed confidence in the business outlook. It continues to expect full-year 2026 same-store revenue growth in the mid- to high-20% range, supported by persistent customer demand, strong bookings, expanding modular capacity and record backlog.

What the Zacks Model Says for FIX StockOur proven model does not conclusively predict an earnings beat for Comfort Systems this time around. A combination of a positive Earnings ESP and a Zacks Rank #1 (Strong Buy), 2 (Buy) or 3 (Hold) increases the odds of an earnings beat. This is not the case here.

FIX’s Earnings ESP: The company has an Earnings ESP of 0.00%. You can uncover the best stocks before they’re reported with our Earnings ESP Filter.

FIX’s Zacks Rank: The company currently carries a Zacks Rank of 3. You can see the complete list of today’s Zacks #1 Rank stocks here.

FIX Stock’s Price PerformanceFIX stock has surged 83.4% year to date (YTD), outperforming the Zacks Building Products - Air Conditioner and Heating industry, the Construction sector and the S&P 500 Index.

FIX Stock’s Price Performance (YTD)

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Comfort Systems sits at a critical execution layer of the AI-driven data center and technology infrastructure boom, competing with Quanta Services, Inc. (PWR - Free Report) , Carrier Global Corp. (CARR - Free Report) and EMCOR Group, Inc. (EME - Free Report) across distinct but overlapping segments. So far this year, FIX has also outperformed these market players, of which Quanta and Carrier Global have gained 49.9% and 26.8%, respectively, while EMCOR has gained 21.6%. It has also comfortably exceeded the gains of these major peers, suggesting investors’ continued reward for Comfort Systems for its strong exposure to high-growth end markets, particularly AI data centers, advanced manufacturing and mission-critical infrastructure.

FIX’s Valuation TrendFIX stock is currently trading at a premium compared with the industry peers, with a forward 12-month price-to-earnings (P/E) ratio of 35.28, as evidenced by the chart below.

FIX’s Valuation vs Industry (P/E F12M)

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At 35.28x forward 12-month earnings, FIX trades above Carrier Global (22.42X) and EMCOR (23.74X), indicating investors are willing to pay a higher multiple for its superior growth outlook and execution. However, it is not the most expensive stock among the peer group, as Quanta commands an even richer multiple of 41.1X.

ConclusionDespite its premium valuation, Comfort Systems appears well positioned heading into its second-quarter results. The company continues to benefit from record backlog, robust demand from AI data centers, semiconductor and mission-critical infrastructure projects, healthy margins and favorable earnings estimate revisions. Its expanding modular manufacturing capabilities, disciplined project selection and strong same-store revenue growth outlook further reinforce confidence in its long-term growth trajectory. The company's industry-leading execution has also translated into significant stock outperformance versus both peers and the broader market, making FIX a stock investors should continue holding ahead of its second-quarter 2026 earnings release.

Key Takeaways Comfort Systems targets 4M square feet of modular capacity by end-2026 as demand drives expansion.Q1 CapEx surged to $147M, funding a Texas modular assembly building and automation investments.Large customers need more capacity, while new customers are placing sizable trial orders. Comfort Systems USA, Inc. (FIX - Free Report) is expanding its modular capabilities as customer demand creates a need for greater off-site production capacity. Modular revenues accounted for 17% of total revenues in the first quarter of 2026, making the business a meaningful part of the company’s construction operations. The company is on track to reach 4 million square feet of modular capacity by the end of 2026 and is evaluating further investments.

The expansion is supported by a sharp increase in capital spending. Capital expenditures reached $147 million in the first quarter, up from $22 million a year ago, and represented 5.1% of revenues compared with 1.2%. Spending included the purchase of a large modular assembly building in Texas and other investments in modular capabilities. Full-year CapEx is expected to remain near 5% of revenues as Comfort Systems invests in facilities and automation equipment.

The capacity buildout is also tied to customer demand. Existing large customers require additional capacity, while new customers are placing sizable trial orders. For many facilities, Comfort Systems seeks multiyear customer commitments at agreed volume levels before committing capacity. This approach can improve visibility around asset use, support pricing and deepen customer relationships.

The broader operating environment also provides support. First-quarter revenues rose 56% to $2.9 billion, while same-store revenues increased 51% year over year. Mechanical segment revenues, which include modular activity, grew 47% year over year. Taken together, rising modular scale, customer-backed capacity additions and automation investments could strengthen Comfort Systems’ ability to serve larger project volumes. However, the higher capital requirement makes disciplined capacity deployment and sustained customer demand important to realizing returns from the expansion.

Comfort Systems’ Competitive LandscapeComfort Systems, alongside close peers, AAON, Inc. (AAON - Free Report) and Carrier Global Corporation (CARR - Free Report) , is pursuing different strategies to strengthen its position across the HVAC and infrastructure markets. All three are benefiting from demand for advanced cooling, energy-efficient systems and data center infrastructure.

Comfort Systems has distinguished itself through strong project execution and expanding mechanical, electrical and modular capabilities for complex data center and advanced technology projects. AAON focuses on highly engineered and configurable HVAC solutions, supported by capacity expansion and improved production. Demand for data center thermal management and specialized cooling applications is also supporting growth opportunities.

Carrier Global competes through a broad HVAC portfolio, product innovation and integrated building solutions. Its business is supported by commercial HVAC demand, aftermarket services, digital connectivity and energy-efficient offerings. While Comfort Systems emphasizes project execution and modular capabilities, AAON relies on specialized HVAC and cooling solutions and Carrier Global uses product breadth, system integration and a broad service network to compete across end markets.

FIX Stock’s Price Performance & Valuation TrendShares of this Texas-based heating, ventilation, air conditioning and electrical contracting service provider have surged 90.8% year to date, outperforming the Zacks Building Products - Air Conditioner and Heating industry, the Zacks Construction sector and the S&P 500 Index.

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FIX stock is currently trading at a premium compared with the industry peers, with a forward 12-month price-to-earnings (P/E) ratio of 37.07, as the trend lines suggest below.

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Earnings Estimate Trend of FIXFIX’s earnings estimates for 2026 and 2027 have moved upward in the past 60 days to $43.08 and $52.59 per share, respectively. The revised estimates for 2026 and 2027 imply year-over-year growth of 49.2% and 22.1%, respectively.

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Comfort Systems currently carries a Zacks Rank #3 (Hold). You can see the complete list of today’s Zacks #1 Rank (Strong Buy) stocks here.

Comfort Systems USA (FIX +3.48%) has been a major beneficiary of the artificial intelligence boom. The infrastructure company provides ventilation and air conditioning for AI data centers that prevent GPUs from overheating.

Shares have more than doubled year to date and briefly touched $2,000. However, the stock has the potential to reach $2,500 per share by year-end. Here's why.

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Clear revenue visibility fuels solid results Comfort Systems USA benefits from a $12.45 billion backlog as of Q1. That's an 80.7% year-over-year increase, providing meaningful revenue visibility for future quarters. Total revenue for the first quarter was $2.87 billion, up 56.5% year over year. Its backlog is equal to more than one full year of revenue based on Q1 results.

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That revenue backlog is a major catalyst for future sales growth. Comfort Systems USA has reported sequential revenue growth for several quarters, partially fueled by its upcoming orders. The company also has a slight sequential increase in its backlog, showing that it can maintain the high figure while delivering on projects.

The clear revenue visibility also comes with rising profit margins. Net income more than doubled year over year, and the company closed Q1 with a double-digit net profit margin, a figure it has maintained for several quarters. Comfort Systems USA even announced a 14.3% dividend hike this year, showing that it can reward shareholders while gaining market share. That's a good setup on the path to $2,500 per share.

Tech companies are fueling the Comfort Systems USA rally The Comfort Systems rally isn't based on hype. The company is delivering tangible gains in its industry while appealing to tech giants eager to spend as much as possible on AI.

More than half of Comfort System USA's backlog was from tech companies in Q1. New construction also accounted for almost three-quarters of year-to-date revenue, up from 63.2% in full-year 2025.

Tech leaders need AI data centers for the next stage of innovation, and Comfort Fix USA is involved with many of them. Comfort Fix USA has also strategically acquired more than 50 operating companies over the years to expand its footprint. That additional market share is present at a critical time for the HVAC industry.

The top five hyperscalers are projected to spend more than $650 billion on AI infrastructure this year. That money has to go somewhere, and it's difficult to imagine these companies suddenly pulling the plug on AI spending in 2027. This is a multiyear megatrend, and Comfort Systems USA is well-positioned for it.

Marc Guberti has no position in any of the stocks mentioned. The Motley Fool has positions in and recommends Comfort Systems USA. The Motley Fool has a disclosure policy.