HVAC contractor (C-20) in Fairfield, CA

There are 4 HVAC contractor (C-20) licenses with an address of record in Fairfield, CA, in the CSLB License Master data checked Oct 27, 2026. That is 0.2% of the 1,847 such licenses statewide; Fairfield ranks #141 of 425 CA cities for this license type. They are spread across 2 ZIP codes; the most common are 94534 (3), 94533 (1). Most list Solano County. By business type: Corporation 3, Partnership 1. The median first-issue year is 2017; the oldest license dates from 2016. None has an expiration date in the next 12 months, but status can change at any time (for example after discipline), so re-check before you sign a contract.

What a HVAC contractor (C-20) license covers

Warm-Air Heating, Ventilating and Air-Conditioning (C-20) covers furnaces, heat pumps, air-conditioning units, ducts and ventilation systems.

How to verify a license

Enter the license number in CSLB Instant License Check and confirm the status is active, the classification matches the work, and the contractor has a current bond and workers' compensation coverage (or a valid exemption). California requires the license number on contracts and advertising. Official lookup: CSLB Instant License Check.

HVAC contractor (C-20) licenses in Fairfield

Showing 4 of 4, A to Z. Listing order is alphabetical, not a recommendation.