Best Licensed Plumbers in Claremont, CA
9 plumbing companies registered in Claremont 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.
- 4,272 active C-36 plumbing licenses in Los Angeles County; 9 registered in Claremont
- 3 of Claremont's 9 licenses (33.3%) carry current workers' compensation cover, not liability insurance; a blank usually means an owner-operator with no employees
- Median time licensed in Claremont: 3 years
- Longest Claremont licensure: since 1978
- 375 county licenses reach their expiration date within 90 days
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- Verified
- August 17, 2026
- Licensed since
- 2007
- Phone
- (626) 672-6155
- Verified
- August 17, 2026
- Licensed since
- 2022
- Phone
- (818) 739-9196
- Verified
- August 17, 2026
- Licensed since
- 2024
- Phone
- (626) 322-1538
- Verified
- August 17, 2026
- Licensed since
- 1978
- Phone
- (626) 786-1387
- Verified
- August 17, 2026
- Licensed since
- 1990
- Phone
- (626) 485-2374
- Verified
- August 17, 2026
- Licensed since
- 2012
- Phone
- (760) 646-0194
- Verified
- August 17, 2026
- Licensed since
- 2025
- Phone
- (626) 641-8414
- Verified
- August 17, 2026
- Licensed since
- 2025
- Phone
- (714) 341-5325
Compare the top 6 at a glance
| Company | License | Workers' comp | Licensed since |
|---|---|---|---|
| Complete Plumbing And Rooter | #906682 | On file | 2007 |
| New Power Contracting For Building Mechanicals | #1100150 | On file | 2022 |
| 24 Rooter & Plumbing Inc. | #1126081 | On file | 2024 |
| Hayden's Services Inc. | #359145 | Exempt or none on file | 1978 |
| Thomas Pompa Plumbing | #594858 | Exempt or none on file | 1990 |
| Living Waters Backflow | #969269 | Exempt or none on file | 2012 |
Los Angeles County plumbing licensure at a glance
California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 4,272 active C-36 plumbing licenses in Los Angeles County, 9 of them registered in Claremont. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Claremont license has been held 3 years, and the longest-standing one dates to 1978. 3 of Claremont's 9 licenses (33.3%) 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: 4,270 of the county's 4,272 licenses carry the same $25,000 bond California sets by statute. 375 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 Claremont: common questions
How many licensed plumbers are there in Claremont?
9 active C-36 plumbing licenses are registered in Claremont, out of 4,272 across Los Angeles County. 9 Claremont-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. 9 active C-36 plumbing licenses are registered in Claremont and 4,272 across Los Angeles County, the longest-standing issued in 1978. 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 3 of Claremont's 9 currently carry. 375 Los Angeles County licenses expire within 90 days.