Best Licensed Plumbers in Penn Valley, CA
5 plumbing companies registered in Penn Valley hold current CSLB licenses, verified against official records as of August 17, 2026. All 5 are listed below, ordered by workers' compensation cover and years licensed.
- 94 active C-36 plumbing licenses in Nevada County; 5 registered in Penn Valley
- 2 of Penn Valley's 5 licenses (40.0%) carry current workers' compensation cover, not liability insurance; a blank usually means an owner-operator with no employees
- Median time licensed in Penn Valley: 21 years
- Longest Penn Valley licensure: since 1989
- 5 county licenses reach their expiration date within 90 days
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- Verified
- August 17, 2026
- Licensed since
- 2004
- Phone
- (408) 832-1990
- Verified
- August 17, 2026
- Licensed since
- 2023
- Phone
- (530) 446-4557
- Verified
- August 17, 2026
- Licensed since
- 1989
- Phone
- (530) 913-9457
- Verified
- August 17, 2026
- Licensed since
- 1989
- Phone
- (650) 450-1202
- Verified
- August 17, 2026
- Licensed since
- 2012
- Phone
- (530) 701-7079
Compare the top 5 at a glance
| Company | License | Workers' comp | Licensed since |
|---|---|---|---|
| J T R Plumbing | #848303 | On file | 2004 |
| Walter Adams Plumbing Inc. | #1109229 | On file | 2023 |
| Bert Mc Whinney Plumbing | #557631 | Exempt or none on file | 1989 |
| Cook Enterprises | #580263 | Exempt or none on file | 1989 |
| Banducci's Plumbing | #970129 | Exempt or none on file | 2012 |
Nevada County plumbing licensure at a glance
California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 94 active C-36 plumbing licenses in Nevada County, 5 of them registered in Penn Valley. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Penn Valley license has been held 21 years, and the longest-standing one dates to 1989. 2 of Penn Valley's 5 licenses (40.0%) 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: 94 of the county's 94 licenses carry the same $25,000 bond California sets by statute. 5 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 Penn Valley: common questions
How many licensed plumbers are there in Penn Valley?
5 active C-36 plumbing licenses are registered in Penn Valley, out of 94 across Nevada County. 5 Penn Valley-registered companies passed our license verification, and all 5 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. 5 active C-36 plumbing licenses are registered in Penn Valley and 94 across Nevada County, the longest-standing issued in 1989. 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 Penn Valley's 5 currently carry. 5 Nevada County licenses expire within 90 days.