Best Licensed HVAC Contractors in Pacheco, CA
8 HVAC contractors registered in Pacheco hold current CSLB licenses, verified against official records as of August 17, 2026. All 8 are listed below, ordered by years licensed.
- 317 active C-20 heating and air conditioning licenses in Contra Costa County; 9 registered in Pacheco
- California requires workers' compensation cover for C-20 licensees: 9 of Pacheco's 9 licenses (100.0%) carry a current policy with CSLB
- Median time licensed in Pacheco: 19 years
- Longest Pacheco licensure: since 1971
- 28 county licenses reach their expiration date within 90 days
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- Verified
- August 17, 2026
- Licensed since
- 1971
- Expires
- 2027-09-30
- Phone
- (925) 288-1408
- Verified
- August 17, 2026
- Licensed since
- 1998
- Expires
- 2026-12-31
- Phone
- (925) 548-6299
- Verified
- August 17, 2026
- Licensed since
- 2003
- Expires
- 2028-06-30
- Phone
- (925) 595-3870
- Verified
- August 17, 2026
- Licensed since
- 2006
- Expires
- 2026-12-31
- Phone
- (925) 825-5625
- Verified
- August 17, 2026
- Licensed since
- 2013
- Expires
- 2027-05-31
- Phone
- (925) 766-9992
- Verified
- August 17, 2026
- Licensed since
- 2014
- Expires
- 2026-09-30
- Phone
- (925) 665-9003
- Verified
- August 17, 2026
- Licensed since
- 2015
- Expires
- 2027-06-30
- Phone
- (925) 381-3195
- Verified
- August 17, 2026
- Licensed since
- 2017
- Expires
- 2028-01-31
- Phone
- (925) 421-0888
Compare the top 6 at a glance
| Company | License | Workers' comp | Licensed since |
|---|---|---|---|
| Connolly Heating & Air Conditioning | #268327 | On file | 1971 |
| Temperature Technology Incorporated | #757339 | On file | 1998 |
| Shanahan Bennett Corporation | #822991 | On file | 2003 |
| Kevin M. Sullivan & Associates Inc. | #887975 | On file | 2006 |
| Gb Heating And Air Conditioning Inc. | #985481 | On file | 2013 |
| Mechpros Heating And Air Conditioning | #996940 | On file | 2014 |
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, 9 of them registered in Pacheco. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Pacheco license has been held 19 years, and the longest-standing one dates to 1971. 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: 9 of Pacheco's 9 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 Pacheco: common questions
How many licensed HVAC contractors are there in Pacheco?
9 active C-20 heating and air conditioning licenses are registered in Pacheco, out of 317 across Contra Costa County. 8 Pacheco-registered companies passed our license verification, and all 8 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. 9 active C-20 heating and air conditioning licenses are registered in Pacheco and 317 across Contra Costa County, the longest-standing issued in 1971. 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 9 of Pacheco's 9 currently carry. 28 Contra Costa County licenses expire within 90 days.