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Comfort Systems Stock Before Q3 Earnings: Here's What to Expect

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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.

Zacks Investment Research
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

Zacks Investment Research
Image Source: Zacks Investment Research

Comfort Systems Revenue Estimate

Zacks Investment Research
Image Source: Zacks Investment Research

Factors Likely to Have Defined FIX’s Q3 Performance

Strong 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 Stock

Our 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 Performance

FIX 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)

Zacks Investment Research
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)

Zacks Investment Research
Image Source: Zacks Investment Research

FIX’s Valuation Trend

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 25.2, as evidenced by the chart below.

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

Zacks Investment Research
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.

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