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 June 27, 2026.

2 contractors

1. Comfort Heating & Cooling Systems

   Altadena, CA · CSLB #707692 · as of June 27, 2026
   Active · clear
2. Prime Air Mechanical INC

   Altadena, CA · CSLB #1112002 · as of June 27, 2026
   Active · clear

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Data sourced from the California Contractors State License Board (CSLB), current as of June 27, 2026. IsItLicensed is not affiliated with or endorsed by the CSLB or the State of California. Always verify against the official record.