Best Licensed HVAC Contractors in Oceanside, CA
37 HVAC contractors registered in Oceanside hold current CSLB licenses, verified against official records as of August 17, 2026. The 8 below are the top-ranked, ordered by years licensed.
- 850 active C-20 heating and air conditioning licenses in San Diego County; 37 registered in Oceanside
- California requires workers' compensation cover for C-20 licensees: 37 of Oceanside's 37 licenses (100.0%) carry a current policy with CSLB
- Median time licensed in Oceanside: 14 years
- Longest Oceanside licensure: since 1990
- 69 county licenses reach their expiration date within 90 days
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- Verified
- August 17, 2026
- Licensed since
- 1990
- Expires
- 2027-12-31
- Phone
- (714) 225-5110
- Verified
- August 17, 2026
- Licensed since
- 1991
- Expires
- 2027-01-31
- Phone
- (323) 919-1443
- Verified
- August 17, 2026
- Licensed since
- 1997
- Expires
- 2027-06-30
- Phone
- (760) 726-1715
- Verified
- August 17, 2026
- Licensed since
- 1998
- Expires
- 2028-05-31
- Phone
- (760) 439-7916
- Verified
- August 17, 2026
- Licensed since
- 1998
- Expires
- 2026-08-31
- Phone
- (760) 429-9617
- Verified
- August 17, 2026
- Licensed since
- 2001
- Expires
- 2027-01-31
- Phone
- (760) 643-1100
- Verified
- August 17, 2026
- Licensed since
- 2002
- Expires
- 2026-09-30
- Phone
- (760) 317-1396
- Verified
- August 17, 2026
- Licensed since
- 2004
- Expires
- 2028-03-31
- Phone
- (951) 259-8800
Compare the top 6 at a glance
| Company | License | Workers' comp | Licensed since |
|---|---|---|---|
| Baker Air Conditioning | #601408 | On file | 1990 |
| Lambert Air Conditioning And Construction | #608692 | On file | 1991 |
| Pacific Coast Heating & Air Conditioning Inc. | #737889 | On file | 1997 |
| Dewildt Environmental Inc. | #749748 | On file | 1998 |
| Oceanside Mechanical | #753165 | On file | 1998 |
| Seaside Heating & Air Conditioning Inc. | #790514 | On file | 2001 |
San Diego County HVAC licensure at a glance
California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 850 active C-20 heating and air conditioning licenses in San Diego County, 37 of them registered in Oceanside. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Oceanside license has been held 14 years, and the longest-standing one dates to 1990. 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: 37 of Oceanside's 37 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: 850 of the county's 850 licenses carry the same $25,000 bond California sets by statute. 69 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 Oceanside: common questions
How many licensed HVAC contractors are there in Oceanside?
37 active C-20 heating and air conditioning licenses are registered in Oceanside, out of 850 across San Diego County. 37 Oceanside-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. 37 active C-20 heating and air conditioning licenses are registered in Oceanside and 850 across San Diego County, the longest-standing issued in 1990. 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 37 of Oceanside's 37 currently carry. 69 San Diego County licenses expire within 90 days.