Best Licensed HVAC Contractors in El Cerrito, CA
4 HVAC contractors registered in El Cerrito hold current CSLB licenses, verified against official records as of August 17, 2026. All 4 are listed below, ordered by years licensed.
- 317 active C-20 heating and air conditioning licenses in Contra Costa County; 4 registered in El Cerrito
- California requires workers' compensation cover for C-20 licensees: 4 of El Cerrito's 4 licenses (100.0%) carry a current policy with CSLB
- Median time licensed in El Cerrito: 11 years
- Longest El Cerrito licensure: since 1987
- 28 county licenses reach their expiration date within 90 days
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- Verified
- August 17, 2026
- Licensed since
- 1987
- Expires
- 2026-09-30
- Phone
- (510) 812-8292
- Verified
- August 17, 2026
- Licensed since
- 1999
- Expires
- 2027-06-30
- Phone
- (510) 848-3030
- Verified
- August 17, 2026
- Licensed since
- 2014
- Expires
- 2026-08-31
- Phone
- (510) 215-9600
- Verified
- August 17, 2026
- Licensed since
- 2017
- Expires
- 2027-08-31
- Phone
- (510) 508-2349
Compare the top 4 at a glance
| Company | License | Workers' comp | Licensed since |
|---|---|---|---|
| National Construction Company Inc. | #517533 | On file | 1987 |
| Hassler Heating And Air Conditioning LLC | #770180 | On file | 1999 |
| Marina Continental Light And Shade Inc. | #995873 | On file | 2014 |
| Skytown Mechanical | #1030357 | On file | 2017 |
Contra Costa County HVAC licensure at a glance
California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 317 active C-20 heating and air conditioning licenses in Contra Costa County, 4 of them registered in El Cerrito. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median El Cerrito license has been held 11 years, and the longest-standing one dates to 1987. 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: 4 of El Cerrito's 4 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: 317 of the county's 317 licenses carry the same $25,000 bond California sets by statute. 28 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 El Cerrito: common questions
How many licensed HVAC contractors are there in El Cerrito?
4 active C-20 heating and air conditioning licenses are registered in El Cerrito, out of 317 across Contra Costa County. 4 El Cerrito-registered companies passed our license verification, and all 4 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. 4 active C-20 heating and air conditioning licenses are registered in El Cerrito and 317 across Contra Costa County, the longest-standing issued in 1987. 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 4 of El Cerrito's 4 currently carry. 28 Contra Costa County licenses expire within 90 days.