Best Licensed Plumbers in San Luis Obispo, CA
24 plumbing companies 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 workers' compensation cover and years licensed.
- 209 active C-36 plumbing licenses in San Luis Obispo County; 25 registered in San Luis Obispo
- 9 of San Luis Obispo's 25 licenses (36.0%) carry current workers' compensation cover, not liability insurance; a blank usually means an owner-operator with no employees
- Median time licensed in San Luis Obispo: 19 years
- Longest San Luis Obispo licensure: since 1979
- 18 county licenses reach their expiration date within 90 days
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- Verified
- August 17, 2026
- Licensed since
- 1979
- Phone
- (805) 544-5118
- Verified
- August 17, 2026
- Licensed since
- 1989
- Phone
- (805) 541-1333
- Verified
- August 17, 2026
- Licensed since
- 1992
- Phone
- (805) 544-1214
- Verified
- August 17, 2026
- Licensed since
- 1998
- Phone
- (805) 595-9515
- Verified
- August 17, 2026
- Licensed since
- 2002
- Phone
- (805) 541-2444
- Verified
- August 17, 2026
- Licensed since
- 2007
- Phone
- (805) 264-3058
- Verified
- August 17, 2026
- Licensed since
- 2010
- Phone
- (805) 542-0033
- Verified
- August 17, 2026
- Licensed since
- 2014
- Phone
- (805) 544-4141
Compare the top 6 at a glance
| Company | License | Workers' comp | Licensed since |
|---|---|---|---|
| Knecht's Plumbing & Heating Inc. | #373936 | On file | 1979 |
| Action Rooter | #557901 | On file | 1989 |
| Drain Doctors Plumbing | #639471 | On file | 1992 |
| Evenson Plumbing Inc. | #749436 | On file | 1998 |
| Power Plumbing Inc. | #815536 | On file | 2002 |
| Izzy Plumbing | #892651 | On file | 2007 |
San Luis Obispo County plumbing licensure at a glance
California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 209 active C-36 plumbing licenses in San Luis Obispo County, 25 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 19 years, and the longest-standing one dates to 1979. 9 of San Luis Obispo's 25 licenses (36.0%) carry current workers' compensation cover in CSLB's file. That is employee injury cover, not liability insurance, and a blank usually means an owner-operator with no employees - lawful, and not a mark against anyone. The contractor bond is not a signal here: 209 of the county's 209 licenses carry the same $25,000 bond California sets by statute. 18 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.
Plumbers in San Luis Obispo: common questions
How many licensed plumbers are there in San Luis Obispo?
25 active C-36 plumbing licenses are registered in San Luis Obispo, out of 209 across San Luis Obispo County. 24 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 plumbers?
Yes. California licenses contractors by classification, and C-36 is the CSLB classification that authorises this work. 25 active C-36 plumbing licenses are registered in San Luis Obispo and 209 across San Luis Obispo County, the longest-standing issued in 1979. Only CLEAR, unexpired licenses appear here.
How do I check a plumber'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 9 of San Luis Obispo's 25 currently carry. 18 San Luis Obispo County licenses expire within 90 days.