Best Licensed HVAC Contractors in Forestville, CA
3 HVAC contractors registered in Forestville hold current CSLB licenses, verified against official records as of August 17, 2026. All 3 are listed below, ordered by years licensed.
- 177 active C-20 heating and air conditioning licenses in Sonoma County; 3 registered in Forestville
- California requires workers' compensation cover for C-20 licensees: 3 of Forestville's 3 licenses (100.0%) carry a current policy with CSLB
- Median time licensed in Forestville: 32 years
- Longest Forestville licensure: since 1993
- 13 county licenses reach their expiration date within 90 days
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- Verified
- August 17, 2026
- Licensed since
- 1993
- Expires
- 2027-01-31
- Phone
- (707) 887-7530
- Verified
- August 17, 2026
- Licensed since
- 1993
- Expires
- 2027-10-31
- Phone
- (707) 953-1220
- Verified
- August 17, 2026
- Licensed since
- 2025
- Expires
- 2027-06-30
- Phone
- (707) 543-6271
Compare the top 3 at a glance
| Company | License | Workers' comp | Licensed since |
|---|---|---|---|
| William G Avellar Heating And Air Conditioning | #662900 | On file | 1993 |
| Golden State Sheet Metal | #679382 | On file | 1993 |
| Acz Mechanical Inc. | #1139244 | On file | 2025 |
Sonoma County HVAC licensure at a glance
California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 177 active C-20 heating and air conditioning licenses in Sonoma County, 3 of them registered in Forestville. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Forestville license has been held 32 years, and the longest-standing one dates to 1993. 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 Forestville'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: 177 of the county's 177 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 Forestville: common questions
How many licensed HVAC contractors are there in Forestville?
3 active C-20 heating and air conditioning licenses are registered in Forestville, out of 177 across Sonoma County. 3 Forestville-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 Forestville and 177 across Sonoma County, the longest-standing issued in 1993. 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 Forestville's 3 currently carry. 13 Sonoma County licenses expire within 90 days.