Comfort Systems USA Inc (FIX) Fair Value & Analysis
Industrials · US · Market cap $61.8B · ISIN US1999081045
What is Comfort Systems USA Inc really worth?
Comfort Systems USA Inc
FIX · US
A solid business, but trading 204% above our fair value of $519.97.
Strengths
Risks
For context
Fair value as of: Aug 29, 2026
From 26 valuation models · updated 7 days ago
Share price −11.0% over the past month.
What runs behind every stock
69 individual criteria per stock, every one traceable See the method →
What matters now
- A high-quality business (quality 71/100), yet the market already pays well above fair value. Quality at a full price, with little margin of safety.
- The price sits above even our optimistic bull case ($765.61). The favourable scenario is already priced in.
- A fairly wide model range ($358.49 to $765.61) leaves room in how you read the outcome.
Price vs Fair Value (5 years)
White line = price, green steps = our fair value per fiscal year, dashed = 300-day average. As of Aug 29, 2026.
How to read this chart
60‑month range $67.78 – $2,067 · fair‑value band $358.49 – $765.61 · the $1,580 price screens above the $519.97 fair value. Green steps = our fair value per fiscal year (point-in-time, no hindsight). 1 fiscal year is left out: there the valuation rested on only a fraction of the usual models. Dashed = 300-day average. As of Aug 29, 2026.
Analysis
Comfort Systems USA Inc (FIX) currently trades at $1,580, while our model-based Fair Value estimate is $519.97, implying the stock looks roughly 203.9% overvalued today. The Quality Score stands at 71/100 (solid quality), in the Industrials sector. Bull case: the DCF Models group reads highest at a median of $694.72 per share, and 0 of the 26 models we run sit above the $1,580 price. Bear case: the Earnings-Based group reads lowest at $388.28, and 26 of the 26 models stay below the price. Evidence for this calculation is high.
Over the trailing twelve months, Comfort Systems USA Inc generated revenue of $10.1B at a net margin of 12.1%. Revenue grew 1.0% year over year. It earns a return on equity of 53.3%. The balance sheet holds a net cash position of $196M. Fundamentals as of Aug 29, 2026
Our scenario range runs from $358.49 (bear case) to $765.61 (bull case); at $1,580, the current price sits above that range. Bear and bull are the same models run on conservative and optimistic assumptions (margins, growth, valuation multiples), so a plausible valuation range, not a price target. The share trades about 24% below its 52-week high and 238% above its 52-week low, currently above its 200-day average. For context, the median of 10 Industrials peers we cover trades at −46% fair-value upside, at −67%, FIX screens richer than that median.
Fair Value models
This estimate rests on fiscal year 2025 figures, and about 8 months have passed since. In that time the company retained roughly $21.88 per share, which is 4.2 % of the fair value. The fair value deliberately does not add this in: the models value reported figures, not a projection.
Each model estimates fair value its own way; the Fair Value above is the evidence-weighted, family-balanced blend. Evidence (0–100) measures how completely this model’s inputs are available: well-fed models carry more weight in the blend. The spread across models is intentional, each one stresses a different value driver; dividend models, for instance, come out structurally low when payout is small. Every input is real reported data, nothing guessed.
All 26 models by family
Widest divergence: DCF Models ($694.72) versus Dividend Discount ($31.49). Highest evidence: FCF DCF (77).
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Key figures & financial health
More key figures
Figures from reported company fundamentals · as of Aug 29, 2026. TTM = trailing twelve months.
Quality Score breakdown
Of which business quality 72 · Market factors (momentum, volatility) 52
Non-valuation factor families (profitability, growth, cashflow, financial strength, momentum …), each academically grounded. Valuation itself sits in the Fair Value and is deliberately excluded here to avoid double-counting.
All values are scores from 0 to 100 (100 = best against fixed, research-based bands), not percentages. The three market factors (momentum, 52-week proximity, low volatility) are displayed but carry zero weight in the headline number: market sentiment is not a business property.
About the company
Comfort Systems USA, Inc., together with its subsidiaries, provides mechanical and electrical installation, renovation, maintenance, repair, and replacement services for the mechanical and electrical services industry in the United States. The company operates through two segments: Mechanical and Electrical.
Full company description
Comfort Systems USA, Inc., together with its subsidiaries, provides mechanical and electrical installation, renovation, maintenance, repair, and replacement services for the mechanical and electrical services industry in the United States. The company operates through two segments: Mechanical and Electrical. It offers heating, ventilation, and air conditioning systems, as well as plumbing, electrical, piping and controls, off-site construction, monitoring, and fire protection. The company is also involved in the design, engineering, integration, installation, and start-up of mechanical, electrical, and plumbing (MEP) and related systems in new buildings; and renovation, expansion, maintenance, monitoring, repair, and replacement of systems in existing buildings. In addition, it provides remote monitoring of power usage, temperature, pressure, humidity and air flow for MEP and other building systems. The company serves building owners and developers, general contractors, architects, consulting engineers, and property managers in the commercial, industrial, and institutional markets. Comfort Systems USA, Inc. was founded in 1917 and is headquartered in Houston, Texas.
Company description, as reported by the company or data provider.
Revenue & earnings trend
FY2021 – FY2025 · reported fiscal years
Comfort Systems USA Inc reported revenue of $9.1B in FY2025 versus $3.1B in FY2021, a compound +31.2%/yr. Reported net income was $1.0B in FY2025, compounding +63.4%/yr from FY2021.
of which total revenue +18.5 % · buybacks/dilution +0.6 %
Annual growth per factor. These are factors, not summands: multiplied they give the EPS growth rate, added they do not quite. Start and end points are 3-year averages (details on hover).
FIX screens 204% overvalued. Compare with Quanta Services, Inc →
Recent news
External third-party headlines (Yahoo Finance, Reuters and others), not an editorial selection.
- Has Comfort Systems USA (FIX) Outpaced Other Construction Stocks This Year?
- Why Comfort Systems (FIX) Outpaced the Stock Market Today
- Can Comfort Systems Fund Expansion Without Financial Stress?
Peer Group
Engineering & Construction · 816 stocks
How this stock ranks against its industry: the green marker is this stock, the band is the typical 25–75% peer range, and the tick is the median.
Valuation Multiples vs Engineering & Construction median · lower = cheaper
Strength profile in five axes (Snowflake)
Five quick dimensions, each 0 to 100: VALUE (fair-value potential), FUTURE (revenue growth), PAST (return on equity), HEALTH (low debt), DIVIDEND (yield). Green = this stock, grey = typical sector peer.
VALUE 0: the price sits above our fair-value range.
Insider activity: 40/100
Values & ESG
Does this company touch areas you may want to avoid? The classification is inferred from sector and industry.
Similar stocks
10 more Engineering & Construction stocks, each showing price versus our Fair Value estimate (as of Aug 29, 2026).
| Stock | Price | Fair Value | vs Fair Value |
|---|---|---|---|
| Quanta Services, Inc PWR | $620.06 | $143.92 | −77% |
| Vinci SA DG | €114.35 | €185.62 | +62% |
| Larsen & Toubro Limited LT | ₹4,072 | ₹2,196 | −46% |
| Ferrovial N.V FER | €57.28 | €19.17 | −67% |
| HOCHTIEF Aktiengesellschaft HOT | €426.40 | €203.87 | −52% |
| Samsung C&T Corporation 028260 | 373,000 KRW | 261,411 KRW | −30% |
| EMCOR Group EME | $775.04 | $549.47 | −29% |
| MasTec, Inc MTZ | $241.00 | $100.00 | −59% |
| Bouygues SA EN | €46.65 | €65.67 | +41% |
| Sterling Infrastructure, Inc STRL | $460.03 | $198.57 | −57% |
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