Licensed Plumbers in San Luis Obispo, California
Updated November 1, 2026 from CSLB's public license file · C-36 Plumbing Contractor
- 27licensed plumbers
- 24active (Clear)
- 11.1%with a suspension
- 55.6%workers' comp exempt
- 19.6 yrsmedian time licensed
- 55.6%corp / LLC / partnership (44.4% sole owner)
- 2new in the last 12 months
- —change tracking began November 1, 2026
CSLB's public data lists 27 plumbers with a mailing address in San Luis Obispo, and 24 of them (88.9%) show a Clear primary status.
The share with a suspension, 11.1%, is 6.3 points higher than the San Luis Obispo County rate for the same license (4.8%). 55.6% report a workers' comp exemption, 4.4 points higher than the statewide figure for plumbers (51.2%), so many of these businesses say they have no employees.
Experience varies: 70.4% have been licensed 10+ years and 2 are new this year (median 19.6 years, vs 13.4 statewide).
In California this work generally calls for the C-36 Plumbing Contractor license (or a B license when it is part of a larger multi-trade job). See the C-36 Plumbing Contractor guide for what the license covers.
How to check a plumber's license in San Luis Obispo
- Look the company up by name or license number (search San Luis Obispo). On the profile, confirm three things: Clear status, the C-36 license for this kind of work, and a contractor's bond on file.
- Re-check the same number on CSLB's Instant License Check the day you sign; our copy is refreshed weekly and 11.1% of San Luis Obispo listings here already show a suspension.
- Match the license holder's name to the name on the written contract and the person you meet. Since 55.6% of San Luis Obispo plumbers claim a workers' comp exemption, ask who will actually do the work. Hiring checklist.
All 27 plumbers in San Luis Obispo
San Luis Obispo plumbers sorted with Clear licenses first, then by years licensed. Badges reflect CSLB's file dated November 1, 2026, not a rating of anyone's work.
| Business name | License # | Status | Years | Workers' comp | Bond |
|---|---|---|---|---|---|
| Knecht's Plumbing & Heating INC | 373936 | Clear | 47 | Insured | On file |
| Culbert Plumbing INC | 398106 | Clear | 45 | Insured | On file |
| Gillespie Plumbing | 555568 | Clear | 37 | Exempt | On file |
| Action Rooter | 557901 | Clear | 37 | Insured | On file |
| Drain Doctor's Plumbing | 639471 | Clear | 34 | Exempt | On file |
| K R Construction INC | 700124 | Clear | 31 | Exempt | On file |
| Finn Plumbing | 725487 | Clear | 30 | Exempt | On file |
| Evenson Plumbing INC | 749436 | Clear | 28 | Insured | On file |
| Troutner Plumbing | 750841 | Clear | 28 | Exempt | On file |
| Ruiz P A Plumbing | 757105 | Clear | 27 | Exempt | On file |
| G C N Construction INC | 762629 | Clear | 27 | Exempt | On file |
| Izzy Plumbing | 892651 | Clear | 19 | Insured | On file |
| Hoffmann Family Plumbing | 920643 | Clear | 18 | Exempt | On file |
| Stalwork INC | 948012 | Clear | 16 | Insured | On file |
| Elke Robert Plumbing | 954294 | Clear | 16 | Exempt | On file |
| Leseman Plumbing | 994808 | Clear | 12 | Exempt | On file |
| Smee's Plumbing | 1029141 | Clear | 9 | Exempt | On file |
| San Luis Obispo County Plumbing | 1042814 | Clear | 8 | Insured | On file |
| Nviro | 1056567 | Clear | 7 | Insured | On file |
| Nate's 48 Plumbing | 1118610 | Clear | 2 | Exempt | On file |
| Furtado Plumbing INC | 1120764 | Clear | 2 | Exempt | On file |
| Drain Doctors Plumbing | 1141421 | Clear | 1 | Exempt | On file |
| White Horse Plumbing LLC | 1153325 | Clear | <1 | Exempt | On file |
| Psn Plumbing INC | 1159886 | Clear | <1 | Insured | On file |
| Power Plumbing INC | 815536 | Susp: qualifier's bond | 23 | Insured | On file |
| Thomas J Murphy | 827963 | Susp: workers' compensation | 22 | None | On file |
| Total Plumbing Heating & Air INC | 996998 | Susp: workers' compensation | 12 | None | On file |
Source: CSLB public data · Updated November 1, 2026 Status can change at any time. Verify on CSLB's Instant License Check.
Frequently asked questions
How many licensed plumbers are in San Luis Obispo?
CSLB's current public file lists 27 plumbers with a San Luis Obispo mailing address. 24 have a Clear status, and 77.8% show no issues at all in the file (no suspension, no pending action, bond on file, not near expiration).
What license does a plumber need in California?
CSLB issues the C-36 Plumbing Contractor classification for this work. In San Luis Obispo County, 88.9% of San Luis Obispo's holders are Clear right now. The license requirement starts at $1,000 per job (the minor-work rule).
How do I check a plumber's workers' comp?
Open the contractor's profile here to see the workers' comp type and insurer from CSLB's file. In San Luis Obispo, 37% of plumbers list a policy, 55.6% claim an exemption and 7.4% show no current coverage. Confirm the policy with CSLB's workers' comp search before work starts. How to check workers' comp.
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Other licensed trades in San Luis Obispo
- General Contractors (240)
- Electricians (47)
- General Engineering Contractors (45)
- Landscapers (40)
- Limited Specialty Contractors (30)
- Painters (29)