Licensed Heating & Air Conditioning (C-20) contractors in Altadena, CA

The California Contractors State License Board (CSLB) lists 2 Heating & Air Conditioning (C-20) contractors in Altadena, California. Each links to a full dossier with license status, insurance, bond, and enforcement — as of October 8, 2026.

2 contractors

1. Comfort Heating & Cooling Systems

   Altadena, CA · CSLB #707692 · as of October 8, 2026
   Active · clear
2. Prime Air Mechanical INC

   Altadena, CA · CSLB #1112002 · as of October 8, 2026
   Active · clear

See all Heating & Air Conditioning (C-20) contractors in California →

Data sourced from the California Contractors State License Board (CSLB), current as of October 8, 2026. IsItLicensed is not affiliated with or endorsed by the CSLB or the State of California. Always verify against the official record.