Is EMCOR Group, Inc. overvalued or undervalued?

As of 31 October 2025, the valuation grade for EMCOR Group, Inc. has moved from attractive to fair, indicating a shift in its perceived value. The company appears to be fairly valued at this time. Key valuation ratios include a P/E ratio of 24, an EV to EBITDA of 16.28, and a PEG ratio of 0.48, which suggests that the stock may be priced reasonably given its growth prospects.
In comparison to its peers, Comfort Systems USA, Inc. has a higher P/E of 38.72 and an EV to EBITDA of 26.63, while AECOM is considered expensive with a P/E of 22.09. This positions EMCOR favorably within its industry, as it maintains competitive ratios despite the recent downgrade in valuation grade. Notably, while EMCOR's stock has returned 48.61% over the past year, outperforming the S&P 500's 19.89%, the recent one-week decline of 10.77% contrasts sharply with the broader market's positive performance.