Classification C-20

Warm-Air Heating, Ventilating and Air-Conditioning Contractor

11,073 California contractors hold a clear C-20 license. 845 more hold one that is suspended or not clear. Roughly 305 read clear with an expired workers’ comp policy on file.

Jobs a C-20 may take

“With a condition” means the license may take the job only in some circumstances — each job page spells them out.

By city 150

Cities with fewer than five clear licenses aren’t listed. Source: CSLB public records, refreshed weekly.