Best Licensed Plumbers in Sonora, CA
12 plumbing companies registered in Sonora 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.
- 32 active C-36 plumbing licenses in Tuolumne County; 12 registered in Sonora
- 7 of Sonora's 12 licenses (58.3%) carry current workers' compensation cover, not liability insurance; a blank usually means an owner-operator with no employees
- Median time licensed in Sonora: 13 years
- Longest Sonora licensure: since 1979
- 2 county licenses reach their expiration date within 90 days
We earn a fee when you call businesses through numbers on this site. This never affects who is listed or how they rank.
1.Central
- Verified
- August 17, 2026
- Licensed since
- 1979
- Phone
- (209) 532-7132
- Verified
- August 17, 2026
- Licensed since
- 1984
- Phone
- (209) 533-1978
- Verified
- August 17, 2026
- Licensed since
- 1984
- Phone
- (209) 533-1010
- Verified
- August 17, 2026
- Licensed since
- 2001
- Phone
- (209) 533-8680
- Verified
- August 17, 2026
- Licensed since
- 2006
- Phone
- (209) 532-9172
- Verified
- August 17, 2026
- Licensed since
- 2013
- Phone
- (209) 743-9821
- Verified
- August 17, 2026
- Licensed since
- 2020
- Phone
- (209) 768-6058
- Verified
- August 17, 2026
- Licensed since
- 2000
- Phone
- (209) 770-2330
Compare the top 6 at a glance
| Company | License | Workers' comp | Licensed since |
|---|---|---|---|
| Central | #371489 | On file | 1979 |
| J Hart Plumbing Inc. | #459194 | On file | 1984 |
| Wayne Waters Plumbing Inc. | #463958 | On file | 1984 |
| E C Builders | #790273 | On file | 2001 |
| Robertson Plumbing | #881579 | On file | 2006 |
| Optimized Plumbing & Piping Inc. | #982621 | On file | 2013 |
Tuolumne County plumbing licensure at a glance
California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 32 active C-36 plumbing licenses in Tuolumne County, 12 of them registered in Sonora. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Sonora license has been held 13 years, and the longest-standing one dates to 1979. 7 of Sonora's 12 licenses (58.3%) 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: 32 of the county's 32 licenses carry the same $25,000 bond California sets by statute. 2 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 Sonora: common questions
How many licensed plumbers are there in Sonora?
12 active C-36 plumbing licenses are registered in Sonora, out of 32 across Tuolumne County. 12 Sonora-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. 12 active C-36 plumbing licenses are registered in Sonora and 32 across Tuolumne 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 7 of Sonora's 12 currently carry. 2 Tuolumne County licenses expire within 90 days.