Best Licensed Plumbers in Penngrove, CA
4 plumbing companies registered in Penngrove hold current CSLB licenses, verified against official records as of August 17, 2026. All 4 are listed below, ordered by workers' compensation cover and years licensed.
- 332 active C-36 plumbing licenses in Sonoma County; 4 registered in Penngrove
- 2 of Penngrove's 4 licenses (50.0%) carry current workers' compensation cover, not liability insurance; a blank usually means an owner-operator with no employees
- Median time licensed in Penngrove: 26 years
- Longest Penngrove licensure: since 1980
- 21 county licenses reach their expiration date within 90 days
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- Verified
- August 17, 2026
- Licensed since
- 1980
- Phone
- (415) 822-1516
- Verified
- August 17, 2026
- Licensed since
- 2000
- Phone
- (707) 975-1051
- Verified
- August 17, 2026
- Licensed since
- 1980
- Phone
- (925) 405-2612
- Verified
- August 17, 2026
- Licensed since
- 2006
- Phone
- (707) 478-0128
Compare the top 4 at a glance
| Company | License | Workers' comp | Licensed since |
|---|---|---|---|
| Bay Area Mechanical And Engineering Inc. | #392695 | On file | 1980 |
| Tom Luchese Plumbing | #776451 | On file | 2000 |
| Carroll Mechanical Systems | #396959 | Exempt or none on file | 1980 |
| Mister Plumber | #885285 | Exempt or none on file | 2006 |
Sonoma County plumbing licensure at a glance
California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 332 active C-36 plumbing licenses in Sonoma County, 4 of them registered in Penngrove. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Penngrove license has been held 26 years, and the longest-standing one dates to 1980. 2 of Penngrove's 4 licenses (50.0%) 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: 331 of the county's 332 licenses carry the same $25,000 bond California sets by statute. 21 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 Penngrove: common questions
How many licensed plumbers are there in Penngrove?
4 active C-36 plumbing licenses are registered in Penngrove, out of 332 across Sonoma County. 4 Penngrove-registered companies passed our license verification, and all 4 are listed on this page. 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. 4 active C-36 plumbing licenses are registered in Penngrove and 332 across Sonoma County, the longest-standing issued in 1980. 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 2 of Penngrove's 4 currently carry. 21 Sonoma County licenses expire within 90 days.