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TTM

13.6%

YoY change

+0.83pp

Trough year (1999)

-2.1%

Peak year (2025)

11.3%

FCF Margin history chart for Comfort Systems USA (FIX) from 1997 to 2025

Latest: 11.3%

FCF Margin change chart for Comfort Systems USA (FIX) from 1997 to 2025

Latest: +0.83pp

FCF Margin history table for Comfort Systems USA (FIX) from 1997 to 2025

  • 202511.3%+0.83pp
  • 202410.5%+0.04pp
  • 202310.5%+4.35pp
  • 20226.1%+0.98pp
  • 20215.1%-4.05pp
  • 20209.2%+4.97pp
  • 20194.2%-1.28pp
  • 20185.5%+1.10pp
  • 20174.4%+0.24pp
  • 20164.2%-0.72pp
  • 20154.9%+3.22pp
  • 20141.7%+0.11pp
  • 20131.5%+0.14pp
  • 20121.4%-0.29pp
  • 20111.7%-0.57pp
  • 20102.3%-1.71pp
  • 20094.0%-1.17pp
  • 20085.1%-1.40pp
  • 20076.5%+5.63pp
  • 20060.9%-2.59pp
  • 20053.5%+0.78pp
  • 20042.7%+1.37pp
  • 20031.4%+0.26pp
  • 20021.1%-5.94pp
  • 20017.0%+2.59pp
  • 20004.4%+6.57pp
  • 1999-2.1%-0.18pp
  • 1998-1.9%-0.06pp
  • 1997-1.9%

FCF Margin values are taken from Comfort Systems USA's reported income statements (quarterly 10-Q and annual 10-K filings with the U.S. Securities and Exchange Commission). Each row shows the period end date and the filing date. YoY compares each figure to the same period one year earlier. Amounts are in USD as filed.

About FCF Margin at Comfort Systems USA (FIX)

According to Comfort Systems USA's latest reported financial statements, the company's latest reported free cash flow margin is 13.6%. Free cash flow margin is free cash flow divided by revenue — the share of each sales dollar that converts into cash after capital expenditures. Because free cash flow cannot be inflated by non-cash accounting, FCF margin is a clean read on how efficiently a business turns revenue into deployable cash.

Headline figure above is from the reporting period ending (reported ). Chart and table below cover the full reported history back to .

Comfort Systems USA (FIX) most recent annual free cash flow margin stands at 11.33% (2025) – expanded 0.8 percentage points year-over-year.

The record annual free cash flow margin stands at 11.33%, reached in 2025; the historical low of -2.12% was recorded in 1999.

Comfort Systems USA FCF Margin by Year

Comfort Systems USA FCF Margin 2025: 11.3%

Comfort Systems USA posted free cash flow margin of 11.33% in 2025, expanded 0.8 percentage points from 2024. This figure represents the highest annual value in the available history.

Comfort Systems USA FCF Margin 2024: 10.5%

In 2024, Comfort Systems USA reported free cash flow margin of 10.50%, expanded 0.0 percentage points from 2023.

Comfort Systems USA FCF Margin 2023: 10.5%

Comfort Systems USA free cash flow margin in 2023 was 10.46%, expanded 4.3 percentage points from 2022.

Comfort Systems USA FCF Margin 2022: 6.1%

2022's free cash flow margin for Comfort Systems USA came in at 6.11%, expanded 1.0 percentage points from 2021.

Comfort Systems USA FCF Margin 2021: 5.1%

Comfort Systems USA free cash flow margin in 2021 was 5.13%.

See more financial history for Comfort Systems USA (FIX).

Sector peers by FCF Margin

Industrials peers of Comfort Systems USA (FIX), ranked by their latest free cash flow margin

Frequently asked questions