Best Licensed HVAC Contractors in Hayward, CA
36 HVAC contractors registered in Hayward hold current CSLB licenses, verified against official records as of August 17, 2026. The 8 below are the top-ranked, ordered by years licensed.
- 273 active C-20 heating and air conditioning licenses in Alameda County; 36 registered in Hayward
- California requires workers' compensation cover for C-20 licensees: 35 of Hayward's 36 licenses (97.2%) carry a current policy with CSLB
- Median time licensed in Hayward: 8 years
- Longest Hayward licensure: since 1940
- 20 county licenses reach their expiration date within 90 days
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- Verified
- August 17, 2026
- Licensed since
- 1940
- Expires
- 2027-03-31
- Phone
- (510) 887-0900
- Verified
- August 17, 2026
- Licensed since
- 1972
- Expires
- 2027-09-30
- Phone
- (510) 569-9123
- Verified
- August 17, 2026
- Licensed since
- 1981
- Expires
- 2027-12-31
- Phone
- (650) 697-9142
- Verified
- August 17, 2026
- Licensed since
- 1985
- Expires
- 2027-10-31
- Phone
- (510) 760-9879
- Verified
- August 17, 2026
- Licensed since
- 1997
- Expires
- 2027-09-30
- Phone
- (510) 264-5800
- Verified
- August 17, 2026
- Licensed since
- 1998
- Expires
- 2027-06-30
- Phone
- (510) 773-3133
- Verified
- August 17, 2026
- Licensed since
- 2003
- Expires
- 2027-12-31
- Phone
- (510) 635-9830
- Verified
- August 17, 2026
- Licensed since
- 2004
- Expires
- 2028-08-31
- Phone
- (510) 887-2900
Compare the top 6 at a glance
| Company | License | Workers' comp | Licensed since |
|---|---|---|---|
| D W Nicholson Corporation | #68847 | On file | 1940 |
| Van-mulder Sheet Metal Inc. | #279981 | On file | 1972 |
| Burlingame Heating And Ventilation Inc. | #414631 | On file | 1981 |
| Ackley Sheetmetal Inc. | #481360 | On file | 1985 |
| A & B Mechanical Inc. | #740508 | On file | 1997 |
| A M E Heating & Air Conditioning | #744499 | On file | 1998 |
Alameda County HVAC licensure at a glance
California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 273 active C-20 heating and air conditioning licenses in Alameda County, 36 of them registered in Hayward. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Hayward license has been held 8 years, and the longest-standing one dates to 1940. 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: 35 of Hayward's 36 licenses (97.2%) carry a current policy in CSLB's file, and we do not rank on it. The contractor bond is not a signal here: 273 of the county's 273 licenses carry the same $25,000 bond California sets by statute. 20 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 Hayward: common questions
How many licensed HVAC contractors are there in Hayward?
36 active C-20 heating and air conditioning licenses are registered in Hayward, out of 273 across Alameda County. 36 Hayward-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. 36 active C-20 heating and air conditioning licenses are registered in Hayward and 273 across Alameda County, the longest-standing issued in 1940. 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 35 of Hayward's 36 currently carry. 20 Alameda County licenses expire within 90 days.