Best Licensed HVAC Contractors in Sunnyvale, CA
16 HVAC contractors registered in Sunnyvale hold current CSLB licenses, verified against official records as of August 17, 2026. The 8 below are the top-ranked, ordered by years licensed.
- 467 active C-20 heating and air conditioning licenses in Santa Clara County; 18 registered in Sunnyvale
- California requires workers' compensation cover for C-20 licensees: 18 of Sunnyvale's 18 licenses (100.0%) carry a current policy with CSLB
- Median time licensed in Sunnyvale: 13 years
- Longest Sunnyvale licensure: since 1982
- 33 county licenses reach their expiration date within 90 days
We earn a fee when you call businesses through numbers on this site. This never affects who is listed or how they rank.
- Verified
- August 17, 2026
- Licensed since
- 1982
- Expires
- 2026-09-30
- Phone
- (408) 734-3569
- Verified
- August 17, 2026
- Licensed since
- 1984
- Expires
- 2026-11-30
- Phone
- (408) 481-3600
- Verified
- August 17, 2026
- Licensed since
- 1984
- Expires
- 2026-11-30
- Phone
- (408) 733-7000
- Verified
- August 17, 2026
- Licensed since
- 1998
- Expires
- 2028-07-31
- Phone
- (510) 384-4180
- Verified
- August 17, 2026
- Licensed since
- 2001
- Expires
- 2027-11-30
- Phone
- (408) 738-8878
- Verified
- August 17, 2026
- Licensed since
- 2008
- Expires
- 2027-09-30
- Phone
- (408) 483-8455
- Verified
- August 17, 2026
- Licensed since
- 2009
- Expires
- 2028-01-31
- Phone
- (669) 224-5940
- Verified
- August 17, 2026
- Licensed since
- 2010
- Expires
- 2026-11-30
- Phone
- (650) 333-5145
Compare the top 6 at a glance
| Company | License | Workers' comp | Licensed since |
|---|---|---|---|
| Backflow Prevention Specialists Inc. | #427328 | On file | 1982 |
| Pacific Coast Trane Service | #465656 | On file | 1984 |
| Jim's Air Conditioning Service | #466610 | On file | 1984 |
| J L Kirk Construction | #751692 | On file | 1998 |
| A & A Plumbing | #801323 | On file | 2001 |
| North Cal Heating And Air Inc. | #917185 | On file | 2008 |
Santa Clara County HVAC licensure at a glance
California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 467 active C-20 heating and air conditioning licenses in Santa Clara County, 18 of them registered in Sunnyvale. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Sunnyvale license has been held 13 years, and the longest-standing one dates to 1982. 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: 18 of Sunnyvale's 18 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: 467 of the county's 467 licenses carry the same $25,000 bond California sets by statute. 33 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 Sunnyvale: common questions
How many licensed HVAC contractors are there in Sunnyvale?
18 active C-20 heating and air conditioning licenses are registered in Sunnyvale, out of 467 across Santa Clara County. 16 Sunnyvale-registered companies passed our license verification, and the 8 on this page are the top-ranked of those. 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. 18 active C-20 heating and air conditioning licenses are registered in Sunnyvale and 467 across Santa Clara County, the longest-standing issued in 1982. 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 18 of Sunnyvale's 18 currently carry. 33 Santa Clara County licenses expire within 90 days.