Sifting through countless of stocks in the Construction & Engineering industry can be tedious, and sometimes two stocks are just too similar to judge which is the better investment. If you’re on the fence about investing in Comfort Systems USA, Inc. or Stantec Inc. because you’re not sure how they measure up, it’s important to compare them on a few factors before making your decision.

Read on to learn how Comfort Systems USA, Inc. and Stantec Inc. compare based on key financial metrics to determine which better meets your investment needs.

About Comfort Systems USA, Inc. and Stantec Inc.

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.

Stantec Inc. provides professional services in the areas of infrastructure and facilities to private and public sectors in Canada, the United States, and internationally. The company offers evaluation, planning, and designing infrastructure solutions; various permitting, conservation, ecosystem restoration, health sciences, and environmental, social, and governance strategy services; solutions for sustainable water resources, planning, management, and infrastructure; integrated architecture, engineering, interior design, and planning solutions for buildings; and energy and resources solutions. It also provides consulting services in engineering, architecture, interior design, landscape architecture, surveying, environmental sciences, project management, and project economics. In addition, the company provides fire engineering, electrical, mechanical, hydraulics, buildings sustainability, and civil expertise services; services in mission critical, academic, civic, cultural, aviation, science and technology, commercial, industrial, and workplace; and delivers services to local authorities, government departments, private clients, and utility companies. Further, the company is involved in the planning, design, construction administration, commissioning, maintenance, decommissioning, and remediation services. Additionally, it offers infrastructure planning, inspection, project management, and construction management services; transportation, buildings, and environmental services; and energy and sustainability, fire safety, civil and structural, and mechanical, electrical and plumbing (MEP) engineering, transport, environmental, and geotechnical services. The company was formerly known as Stanley Technology Group Inc. and changed its name to Stantec Inc. in October 1998. Stantec Inc. was founded in 1954 and is headquartered in Edmonton, Canada.

Latest Construction & Engineering and Comfort Systems USA, Inc., Stantec Inc. Stock News

As of September 1, 2026, Comfort Systems USA, Inc. had a $54.6 billion market capitalization, compared to the Construction & Engineering median of $2.8 million. Comfort Systems USA, Inc.’s stock is NA in 2026, NA in the previous five trading days and up 120.99% in the past year.

Currently, Comfort Systems USA, Inc.’s price-earnings ratio is 38.3. Comfort Systems USA, Inc.’s trailing 12-month revenue is $11.2 billion with a 12.8% net profit margin. Year-over-year quarterly sales growth most recently was 50.3%. Analysts expect adjusted earnings to reach $49.007 per share for the current fiscal year. Comfort Systems USA, Inc. currently has a 0.2% dividend yield.

Currently, Stantec Inc.’s price-earnings ratio is 23.0. Stantec Inc.’s trailing 12-month revenue is $4.8 billion with a 7.4% net profit margin. Year-over-year quarterly sales growth most recently was 7.1%. Analysts expect adjusted earnings to reach $4.463 per share for the current fiscal year. Stantec Inc. currently has a 1.4% dividend yield.

How We Compare Comfort Systems USA, Inc. and Stantec Inc. Stock Grades

Stock evaluation requires access to huge amounts of data and the knowledge and time to sift through it all, make sense of financial ratios, read income statements and analyze recent stock movements. AAII created A+ Investor, a robust data suite that condenses data research in an actionable and customizable way suitable for investors of all knowledge levels, to help investors streamline and work through such data.

AAII’s proprietary stock grades come with A+ Investor. These offer intuitive A‐F grades for each of five key investing factors: value, growth, momentum, earnings estimate revisions and quality. Here, we’ll take a closer look at Comfort Systems USA, Inc. and Stantec Inc.’s stock grades to see how they measure up against one another.

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Comfort Systems USA, Inc. and Stantec Inc. Stock Value Grades

Company	Ticker	Value
Comfort Systems USA, Inc.	FIX	F
Stantec Inc.	STN	C

Successful stock investing involves buying low and selling high, so stock valuation is an important consideration for stock selection.

Buying stocks that are going to go up typically means buying stocks that are undervalued in the first place, although momentum investors may argue that point.

AAII’s A+ Investor Value Grade derives from a stock’s value score. The Value Score is the percentile rank of the average of the percentile ranks of the price-to-sales ratio, price-earnings ratio, enterprise-value-to-EBITDA (EV/EBITDA) ratio, shareholder yield, price-to-book-value ratio and price-to-free-cash-flow ratio. The score is variable, meaning it can consider all six ratios or, should any of the six ratios not be valid, the remaining ratios that are valid. To be assigned a Value Score, stocks must have a valid (non-null) ratio and corresponding ranking for at least two of the six valuation ratios.

Stocks with a Value Score from 81 to 100 are considered deep value, those with a score between 61 and 80 are a good value and so on.

Comfort Systems USA, Inc. has a Value Score of 15, which is Ultra Expensive. Stantec Inc. has a Value Score of 54, which is Average.

The Value Stock Winner: No Clear Winner

Neither Comfort Systems USA, Inc. or Stantec Inc. has a high enough value grade to be considered a “winner.” Investors who are considering these companies should do additional due diligence and research to see if either could be a good addition to their portfolio. It’s important to look at a wide range of financial metrics in order to determine if Comfort Systems USA, Inc. or Stantec Inc. is the better investment when it comes to value.

Comfort Systems USA, Inc. and Stantec Inc. Growth Grades

Company	Ticker	Growth
Comfort Systems USA, Inc.	FIX	B
Stantec Inc.	STN	A

The foundation of growth investing is seeking out stocks of companies exhibiting strong, consistent and prolonged growth that is expected to continue into the future.

In order to compute the growth score and assign it a letter grade, the percentile ranks for each of three components‐consistency of annual sales growth, five-year sales growth rankings adjusted for extreme levels, and consistency of positive annual cash from operations‐must be determined. These three rank figures are added together, and the sum is ranked against the entire stock universe to arrive at a company’s Growth Score to create an equal distribution of grades.

The companies in the bottom 20% of the stock universe receive Growth Grades of F, considered to be very weak, while those in the top 20% receive A grades, which are considered very strong.

Comfort Systems USA, Inc. has a Growth Score of 69, which is Strong. Stantec Inc. has a Growth Score of 95, which is Very Strong.

The Growth Grade Winner: Stantec Inc.

As you can clearly see from the Growth Grade breakdown above, Stantec Inc. has a more attractive growth grade than Comfort Systems USA, Inc.. For investors who focus solely on how a company is growing relative to other companies in the same industry, Stantec Inc. could be a good stock to add to their portfolio. However, it’s important for investors to analyze multiple factors based on a wide range of metrics before deciding whether to buy.

Comfort Systems USA, Inc. and Stantec Inc.’s Momentum Grades

Company	Ticker	Momentum
Comfort Systems USA, Inc.	FIX	A
Stantec Inc.	STN	D

Momentum grades help to uncover stocks experiencing anomalously high rates of return; research finds that stocks with high relative levels of momentum tend to outperform, whereas those with low levels of momentum tend to continue underperforming. Momentum is based on the price change of a stock over a specified period relative to all other stocks.

Typically, AAII looks at the weighted relative strength over the trailing four quarters. The weighted four-quarter relative strength rank is the relative price change for each of the past four quarters. The most recent quarterly price change is given a weight of 40% and each of the three previous quarters are given a weighting of 20%.

Comfort Systems USA, Inc. has a Momentum Score of 85, which is Very Strong. Stantec Inc. has a Momentum Score of 21, which is Weak.

The Momentum Grade Winner: Comfort Systems USA, Inc.

As you can clearly see from the Momentum Grade breakdown above, Comfort Systems USA, Inc. is considered to have stronger momentum compared to Stantec Inc.. For those specifically looking for companies that have stronger momentum compared to other companies in the same industry, Comfort Systems USA, Inc. could be a good stock to invest in. However, it’s important for investors to analyze multiple factors based on a wide range of metrics before deciding whether to buy.

Other Comfort Systems USA, Inc. and Stantec Inc. Grades

In addition to Momentum, Value and Growth, A+ Investor also provides grades for Estimate Revisions and Quality.

Earnings estimate revisions scores take into account the magnitude of a company’s earnings surprise in its last two reported fiscal quarters. Often, surprises beget further surprises‐or at least continued sales growth (the exact opposite is generally true, too).

AAII’s A+ Investor Quality Grade comes from the ranking of key metrics. Specifically, the quality grade is the percentile rank of the composite of return on assets (ROA), return on invested capital (ROIC), gross profit relative to assets, buyback yield, change in total liabilities to assets, accruals, Z double prime bankruptcy risk (Z) score and F-Score.

These 2 key factors, when combined with the above, provide a holistic view into a particular stock. Further, by joining A+ Investor you can see whether Comfort Systems USA, Inc. and Stantec Inc. pass any of our 60+ stock screens that have outperformed the market since their creation.

So, Which Is the Better Investment, Comfort Systems USA, Inc. or Stantec Inc. Stock?

Overall, Comfort Systems USA, Inc. stock has a Value Score of 15, Growth Score of 69 and Momentum Score of 85.

Stantec Inc. stock has a Value Score of 54, Growth Score of 95 and Momentum Score of 21.

Comparing Comfort Systems USA, Inc. and Stantec Inc.’s grades, scores and metrics can act as a solid basis to determine whether they may be a good investment or not. You’ll also want to look at your portfolio’s asset allocation as well as your risk tolerance and financial goals to see if either of these stocks would make a good fit for you. AAII can help you figure out which investments align with your individual needs and preferences.

Investors are encouraged to do their own due diligence and research. In this way, individuals can effectively become managers of their own assets‐without having to rely on others for financial independence. You can count on AAII for timeless articles on financial planning and stock-picking, unbiased research and actionable analysis.

A+ Investor adds to our qualitative teaching with a powerful data suite to help you whittle down investment choices to find stocks, exchange-traded funds (ETFs) or mutual funds that meet your needs.

AAII Disclaimer

We make no representations or warranties that any investor will, or is likely to, achieve profits similar to those shown, because past, hypothetical or simulated performance is not necessarily indicative of future results. Before making an investment decision, you should consider your circumstances and whether the information on our content is applicable to your situation. This information was prepared in good faith, and we accept no liability for any errors or omissions. The full disclaimer can be read here.