How to Verify an HVAC Contractor License in California

Always verify a contractor's license with the official California licensing board before hiring. ACFixFinder displays license information from public records for convenience, but you should confirm status independently.

Steps

  1. Open the CSLB Check a License tool.
  2. Enter the license number or business name.
  3. Confirm a C-20 classification for HVAC work.
  4. Review license status, personnel, and any disciplinary actions.

What to look for

Relevant HVAC license types in California: C-20 Warm-Air Heating, Ventilating and Air-Conditioning

Official California Contractors State License Board (CSLB) lookup →

Find licensed contractors

Browse ACFixFinder listings for California and request quotes from licensed local companies.

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