---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-25-103149"
form_type: "8-K"
ticker: "FIX"
cik: "0001035983"
company_name: "COMFORT SYSTEMS USA INC"
filed_at: "2025-10-28T23:59:59+00:00"
generated_at: "2026-05-17T01:51:25.979345+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Comfort Systems USA Q3 2025: Revenue $2.45B (+35% YoY), Net Income $291.6M (+99% YoY), EPS $8.25

## Summary
- Q3 2025 revenue $2.45B (up 35% YoY); net income $291.6M (up 99% YoY); diluted EPS $8.25 vs $4.09.
- Nine-month 2025 revenue $6.46B (up 25% YoY); net income $691.8M (up 84% YoY); diluted EPS $19.52.
- Backlog at Q3 2025: $9.38B, up from $5.99B at Dec 2024; service maintenance base $183M.
- Cash $860.5M; total debt $136M; Debt/TTM EBITDA 0.11; strong balance sheet.
- YTD 2025 returned $172.1M to shareholders: $47.7M dividends, $124.4M share repurchases.

## SEC filing metadata
- accession: 0001104659-25-103149
- form_type: 8-K
- ticker: FIX
- cik: 0001035983
- company_name: COMFORT SYSTEMS USA INC
- filed_at: 2025-10-28T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1035983/000110465925103149/0001104659-25-103149-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1035983/000110465925103149/tm2529563d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-25-103149
- JSON: https://secwatch.observer/filing/0001104659-25-103149.json
- Plain text: https://secwatch.observer/filing/0001104659-25-103149.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.