Best Licensed HVAC Contractors in San Bruno, CA
3 HVAC contractors registered in San Bruno hold current CSLB licenses, verified against official records as of August 17, 2026. All 3 are listed below, ordered by years licensed.
- 135 active C-20 heating and air conditioning licenses in San Mateo County; 3 registered in San Bruno
- California requires workers' compensation cover for C-20 licensees: 3 of San Bruno's 3 licenses (100.0%) carry a current policy with CSLB
- Median time licensed in San Bruno: 8 years
- Longest San Bruno licensure: since 2003
- 13 county licenses reach their expiration date within 90 days
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- Verified
- August 17, 2026
- Licensed since
- 2003
- Expires
- 2027-05-31
- Phone
- (650) 583-0391
- Verified
- August 17, 2026
- Licensed since
- 2017
- Expires
- 2026-10-31
- Phone
- (415) 980-9920
- Verified
- August 17, 2026
- Licensed since
- 2024
- Expires
- 2028-06-30
- Phone
- (650) 518-9450
Compare the top 3 at a glance
| Company | License | Workers' comp | Licensed since |
|---|---|---|---|
| Southwood Plumbing & Heating Inc. | #818070 | On file | 2003 |
| Main Air Inc. | #1032704 | On file | 2017 |
| J Z Hvac Contractor | #1121949 | On file | 2024 |
San Mateo County HVAC licensure at a glance
California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 135 active C-20 heating and air conditioning licenses in San Mateo County, 3 of them registered in San Bruno. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median San Bruno license has been held 8 years, and the longest-standing one dates to 2003. California law requires workers' compensation cover for C-20 licensees, so it is a legal baseline rather than a way to tell two contractors apart: 3 of San Bruno's 3 licenses (100.0%) carry a current policy in CSLB's file, and we do not rank on it. The contractor bond is not a signal here: 135 of the county's 135 licenses carry the same $25,000 bond California sets by statute. 13 county licenses reach their expiration date within the next 90 days. CSLB cannot link straight to a license record, so every listing above shows its number for you to type into CSLB's license lookup. How we verify.
HVAC Contractors in San Bruno: common questions
How many licensed HVAC contractors are there in San Bruno?
3 active C-20 heating and air conditioning licenses are registered in San Bruno, out of 135 across San Mateo County. 3 San Bruno-registered companies passed our license verification, and all 3 are listed on this page. Only licenses CSLB shows as CLEAR and unexpired are listed.
Does California license HVAC contractors?
Yes. California licenses contractors by classification, and C-20 is the CSLB classification that authorises this work. 3 active C-20 heating and air conditioning licenses are registered in San Bruno and 135 across San Mateo County, the longest-standing issued in 2003. Only CLEAR, unexpired licenses appear here.
How do I check an HVAC contractor's license in California?
Every listing above shows its CSLB license number. CSLB cannot link straight to a record, so open its license lookup and type the number in: it shows status, expiration, the contractor bond and workers' compensation cover, which California requires of C-20 licensees and 3 of San Bruno's 3 currently carry. 13 San Mateo County licenses expire within 90 days.