Best Licensed HVAC Contractors in San Luis Obispo, CA
9 HVAC contractors registered in San Luis Obispo hold current CSLB licenses, verified against official records as of August 17, 2026. The 8 below are the top-ranked, ordered by years licensed.
- 85 active C-20 heating and air conditioning licenses in San Luis Obispo County; 9 registered in San Luis Obispo
- California requires workers' compensation cover for C-20 licensees: 9 of San Luis Obispo's 9 licenses (100.0%) carry a current policy with CSLB
- Median time licensed in San Luis Obispo: 23 years
- Longest San Luis Obispo licensure: since 1979
- 14 county licenses reach their expiration date within 90 days
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- Verified
- August 17, 2026
- Licensed since
- 1979
- Expires
- 2027-04-30
- Phone
- (805) 544-5118
- Verified
- August 17, 2026
- Licensed since
- 1985
- Expires
- 2027-11-30
- Phone
- (805) 543-1998
- Verified
- August 17, 2026
- Licensed since
- 1986
- Expires
- 2028-03-31
- Phone
- (805) 543-7458
- Verified
- August 17, 2026
- Licensed since
- 1991
- Expires
- 2027-03-31
- Phone
- (805) 543-1135
- Verified
- August 17, 2026
- Licensed since
- 2002
- Expires
- 2026-12-31
- Phone
- (805) 541-2444
- Verified
- August 17, 2026
- Licensed since
- 2010
- Expires
- 2028-06-30
- Phone
- (805) 542-0033
- Verified
- August 17, 2026
- Licensed since
- 2014
- Expires
- 2027-08-31
- Phone
- (805) 544-4141
- Verified
- August 17, 2026
- Licensed since
- 2015
- Expires
- 2027-01-31
- Phone
- (805) 543-1090
Compare the top 6 at a glance
| Company | License | Workers' comp | Licensed since |
|---|---|---|---|
| Knecht's Plumbing & Heating Inc. | #373936 | On file | 1979 |
| H Gale Kyle Inc. DBA Kyle Company Roofing | #482290 | On file | 1985 |
| A M Wighton And Sons DBA A & J Refrigeration | #488379 | On file | 1986 |
| Mid Coast Mechanical Inc. | #615966 | On file | 1991 |
| Power Plumbing Inc. | #815536 | On file | 2002 |
| Stalwork Inc. | #948012 | On file | 2010 |
San Luis Obispo County HVAC licensure at a glance
California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 85 active C-20 heating and air conditioning licenses in San Luis Obispo County, 9 of them registered in San Luis Obispo. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median San Luis Obispo license has been held 23 years, and the longest-standing one dates to 1979. 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 San Luis Obispo'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: 85 of the county's 85 licenses carry the same $25,000 bond California sets by statute. 14 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 San Luis Obispo: common questions
How many licensed HVAC contractors are there in San Luis Obispo?
9 active C-20 heating and air conditioning licenses are registered in San Luis Obispo, out of 85 across San Luis Obispo County. 9 San Luis Obispo-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. 9 active C-20 heating and air conditioning licenses are registered in San Luis Obispo and 85 across San Luis Obispo County, the longest-standing issued in 1979. 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 San Luis Obispo's 9 currently carry. 14 San Luis Obispo County licenses expire within 90 days.