Comfort Systems USA (FIX) posts higher Q1 2026 revenue and EPS

Comfort Systems USA (FIX) has opened 2026 with Q1 revenue of about US$2.9 billion and basic EPS of US$10.52, setting the tone off the back of trailing 12 month EPS of US$34.69 on revenue of roughly US$10.1 billion and net income of US$1.2 billion. Over recent quarters the company has seen revenue move from US$1,831.29 million and EPS of US$4.77 in Q1 2025 to US$2,865.33 million and EPS of US$10.52 in Q1 2026, alongside trailing year earnings growth of 105.5% and a higher net margin of 12.1% versus 8.1% a year earlier. This puts profitability and margin trends firmly in focus for investors assessing this update.

See our full analysis for Comfort Systems USA.

With the headline numbers on the table, the next step is to set these results against the prevailing narratives around Comfort Systems USA to see which stories the latest margins and earnings trends support and which they start to challenge.

TTM net income tops US$1.2b

• Over the last twelve months, Comfort Systems USA generated about US$10.1b in revenue and US$1.2b in net income, which works out to trailing twelve month EPS of US$34.69.
• Consensus narrative points to record backlog and growing modular and service revenue as key supports for this profit profile. However, the Q1 2026 figures also show that quarterly EPS has already reached US$10.52, which is a sizeable share of the trailing twelve month US$34.69, so investors may want to think about how much of that backlog and margin story is already flowing through the income statement.
  • Revenue on a trailing basis is US$10.1b compared with quarterly revenue of US$2.9b, so a meaningful portion of the pipeline is still ahead rather than already recognized.
  • With trailing net profit at US$1.2b against Q1 net income of US$370.38m, a single quarter now represents a large slice of the last twelve months, which can make the consensus growth path sensitive to any change in execution on those complex projects.

Margins at 12.1% test bullish story

• The trailing net margin sits at 12.1% compared with 8.1% a year earlier, alongside trailing earnings growth of 105.5%. This lines up with the stronger profitability seen in the recent quarterly EPS ramp from US$4.77 in Q1 2025 to US$10.52 in Q1 2026.
• Bulls argue that higher structural margins, helped by modular work and services, can support long term EPS growth. The 12.1% net margin plus the move in quarterly net income from US$169.29m in Q1 2025 to US$370.38m in Q1 2026 clearly supports that view but also raises the question of how dependent this level of profitability is on current high demand from sectors like technology and industrials.
  • The bullish narrative highlights gross profit percentages that are several hundred basis points above historical levels, which fits with the reported net margin step up. It also means any cooling in high complexity projects could have a visible impact on earnings if pricing power or mix shifts.
  • At the same time, bullish commentary points to growing higher margin service revenue as a partial buffer, and the current 12.1% net margin gives investors a concrete reference point to judge how that mix evolves against more cyclical construction work over time.

Bulls point to record margins, a large backlog and modular growth as reasons the story can continue to compound, so if you want to see how that optimistic case connects the latest Q1 figures to longer term assumptions, check out the 🐂 Comfort Systems USA Bull Case.

P/E of 49.5x with price above DCF value

• On the valuation side, the stock trades on a P/E of 49.5x, which is below the peer average of 61.9x but above the broader US Construction industry at 44.1x. The latest DCF fair value in the dataset is US$999.50 versus a current share price of US$1,726.12 and an analyst consensus price target of US$1,722.25.
• Bears focus on this richer valuation and heavy exposure to large tech related projects, and those concerns line up with a market price that is above the DCF fair value and slightly above the quoted analyst target, while earnings are forecast to grow about 11.5% per year and revenue about 11.1% per year, which are healthy but not extreme growth rates relative to a near 50x P/E.
  • The fact that the P/E is lower than the peer group but higher than the wider industry captures the tension between strong recent growth and the risk that current margins and backlog mix may not be permanent.
  • With the share price above the DCF fair value and close to the analyst target, critics will likely keep asking whether the reliance on large tech and industrial projects justifies paying above that modeled cash flow value if sector demand or margins soften.

Skeptics often point to the premium to DCF fair value and tech concentration when they lay out the risks, and if you want to see that more cautious interpretation set out in full against the same numbers, take a look at the 🐻 Comfort Systems USA Bear Case.

Next Steps

To see how these results tie into long-term growth, risks, and valuation, check out the full range of community narratives for Comfort Systems USA on Simply Wall St. Add the company to your watchlist or portfolio so you'll be alerted when the story evolves.

If the combination of strong margins and premium valuation leaves you unsure, consider acting while the details are fresh and weigh both sides through the 2 key rewards and 1 important warning sign.

See What Else Is Out There

Comfort Systems USA carries a rich P/E multiple relative to the broader construction industry while its share price sits above the cited DCF fair value and analyst target, which can amplify downside risk if sentiment cools.

If paying up for that kind of premium makes you uneasy, compare it with companies on the 55 high quality undervalued stocks to quickly spot ideas priced with more of a margin of safety.

This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.