---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-23-055095"
form_type: "8-K"
ticker: "FIX"
cik: "0001035983"
company_name: "COMFORT SYSTEMS USA INC"
filed_at: "2023-05-02T23:59:59+00:00"
generated_at: "2026-06-16T02:30:27.097392+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# Comfort Systems USA Q1 2023 revenue $1.17B, backlog rises to $4.4B

## Summary
- Q1 2023 revenue $1,174.6M (up 33% YoY); net income $57.2M; diluted EPS $1.59.
- Adjusted EPS $1.51 vs $0.91 YoY; adjusted EBITDA $90.3M vs $60.7M YoY.
- Construction backlog $4,445M at March 31, 2023 (up from $2,312M a year ago, +92%).
- Service maintenance base $165M, up from $147M YoY; dividend increased for 11 consecutive years.
- Operating cash flow $126.9M in Q1; debt/TTM EBITDA 0.57; $209.2M total debt.

## SEC filing metadata
- accession: 0001104659-23-055095
- form_type: 8-K
- ticker: FIX
- cik: 0001035983
- company_name: COMFORT SYSTEMS USA INC
- filed_at: 2023-05-02T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1035983/000110465923055095/0001104659-23-055095-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1035983/000110465923055095/tm2314129d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-23-055095
- JSON: https://secwatch.observer/filing/0001104659-23-055095.json
- Plain text: https://secwatch.observer/filing/0001104659-23-055095.txt

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