Is Comfort Systems USA (FIX) Still Attractive After Its 240% One Year Surge?

Simply Wall St

Tue, February 17, 2026 at 5:08 PM GMT+9 5 min read

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•                                       StockStory Top Pick 
  

  FIX

  +2.92%

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If you are looking at Comfort Systems USA and wondering whether the current share price still makes sense, you are not alone. The stock’s rapid rise has many investors asking what it is really worth.

The share price recently closed at US$1,337.95, with returns of 5.4% over 7 days, 19.5% over 30 days, 33.3% year to date and 240.3% over 1 year. The 3 year return is very large and the 5 year return is more than 20x the starting point.

Recent coverage has focused on Comfort Systems USA’s role as a large mechanical and electrical contractor in the US, including attention on how its project mix and end markets relate to ongoing construction and infrastructure trends. Commentators have also highlighted how the company’s position in heating, ventilation and air conditioning services can tie the stock to broader themes like energy efficiency and building upgrades, which helps frame recent share price moves.

Simply Wall St’s valuation model currently gives Comfort Systems USA a value score of 2 out of 6. This means we will need to look closely at different valuation methods next, and then finish with a way of thinking about value that goes beyond any single model.

Comfort Systems USA scores just 2/6 on our valuation checks. See what other red flags we found in the full valuation breakdown.

Approach 1: Comfort Systems USA Discounted Cash Flow (DCF) Analysis

A Discounted Cash Flow, or DCF, model looks at the cash Comfort Systems USA is expected to generate in the future, then discounts those projected cash flows back to today to estimate what the business might be worth right now.

For Comfort Systems USA, the latest twelve month free cash flow is about $798.7 million. Simply Wall St uses a 2 Stage Free Cash Flow to Equity model, which combines analyst estimates for the next few years with its own extrapolated projections out to 2035. By 2029, free cash flow is projected at $2,415 million, and the ten year projection set ranges from around $1,000.5 million in 2026 to about $4,032.9 million in 2035, all expressed in dollar terms.

After discounting those projected cash flows back to today, the model arrives at an estimated intrinsic value of about $1,491.66 per share. Against the recent share price of US$1,337.95, this implies the stock trades at roughly a 10.3% discount, which indicates that Comfort Systems USA appears undervalued on this DCF view.

Result: UNDERVALUED

Our Discounted Cash Flow (DCF) analysis suggests Comfort Systems USA is undervalued by 10.3%. Track this in your watchlist or portfolio, or discover 55 more high quality undervalued stocks.

Story Continues  

FIX Discounted Cash Flow as at Feb 2026

Head to the Valuation section of our Company Report for more details on how we arrive at this Fair Value for Comfort Systems USA.

Approach 2: Comfort Systems USA Price vs Earnings (P/E)

For a profitable company, the P/E ratio is a useful way to think about what you are paying for each dollar of earnings, because it links the share price directly to the business’s current profitability.

In general, the higher the expected growth and the lower the perceived risk, the higher the P/E ratio investors are usually willing to pay, and the reverse is also true when growth expectations are modest or risks feel higher.

Comfort Systems USA is trading on a P/E of 56.21x. That sits above the Construction industry average of 35.04x and below the peer group average of 73.61x. Simply Wall St’s Fair Ratio for the company is 46.68x. This is a proprietary estimate of what a reasonable P/E could be, given factors such as earnings growth, profit margins, industry, market cap and specific risks.

Compared with simple peer or industry comparisons, the Fair Ratio aims to be more tailored, because it adjusts for the company’s own characteristics rather than treating all Construction names as interchangeable. On this view, the current P/E of 56.21x is higher than the Fair Ratio of 46.68x, which points to the shares looking expensive on this metric.

Result: OVERVALUED

NYSE:FIX P/E Ratio as at Feb 2026

P/E ratios tell one story, but what if the real opportunity lies elsewhere? Start investing in legacies, not executives. Discover our 23 top founder-led companies.

Upgrade Your Decision Making: Choose your Comfort Systems USA Narrative

Earlier we mentioned that there is an even better way to understand valuation, so let us introduce you to Narratives, which are simple stories you create about Comfort Systems USA that tie together your view on its business, your forecast for revenue, earnings and margins, and the fair value you think those numbers support.

On Simply Wall St, Narratives live in the Community page and are designed to be easy to use, so you can connect a clear company story to a set of financial assumptions. You can then compare the Fair Value that falls out of that story with the current share price to help you decide whether the stock looks attractive or stretched for your own goals.

These Narratives update automatically when new information arrives, such as earnings, index inclusion news or revised analyst models. Your Fair Value view therefore adjusts as the Comfort Systems USA story evolves without you needing to rebuild everything from scratch.

For example, one Comfort Systems USA Narrative currently anchors on a Fair Value of about US$1,310 per share while another sits closer to US$1,100. A more cautious view has previously framed Fair Value around US$500, which shows how different investors can look at the same company and, using different assumptions, reach very different conclusions on what the shares are worth.

Do you think there’s more to the story for Comfort Systems USA? Head over to our Community to see what others are saying!

NYSE:FIX 1-Year Stock Price Chart

_ 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._

Companies discussed in this article include FIX.

Have feedback on this article? Concerned about the content? Get in touch with us directly._ Alternatively, email editorial-team@simplywallst.com_

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