Best Licensed Plumbers in Rosemead, CA
16 plumbing companies registered in Rosemead 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; 16 registered in Rosemead
- 7 of Rosemead's 16 licenses (43.8%) carry current workers' compensation cover, not liability insurance; a blank usually means an owner-operator with no employees
- Median time licensed in Rosemead: 16 years
- Longest Rosemead licensure: since 1981
- 375 county licenses reach their expiration date within 90 days
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- Verified
- August 17, 2026
- Licensed since
- 1992
- Phone
- (626) 572-9181
- Verified
- August 17, 2026
- Licensed since
- 1993
- Phone
- (818) 802-8891
- Verified
- August 17, 2026
- Licensed since
- 1995
- Phone
- (626) 315-4338
- Verified
- August 17, 2026
- Licensed since
- 2012
- Phone
- (626) 940-7327
- Verified
- August 17, 2026
- Licensed since
- 2012
- Phone
- (626) 400-0043
- Verified
- August 17, 2026
- Licensed since
- 2020
- Phone
- (626) 288-9983
- Verified
- August 17, 2026
- Licensed since
- 2024
- Phone
- (213) 500-1527
- Verified
- August 17, 2026
- Licensed since
- 1981
- Phone
- (626) 856-8633
Compare the top 6 at a glance
| Company | License | Workers' comp | Licensed since |
|---|---|---|---|
| J P Construction Co | #642751 | On file | 1992 |
| Tai's Plumbing Corp | #673382 | On file | 1993 |
| T Y Construction Inc. | #716679 | On file | 1995 |
| Bezalel Group Inc. | #979250 | On file | 2012 |
| Gcbt Construction & Design | #979239 | On file | 2012 |
| Ch Supply Inc. | #1062791 | On file | 2020 |
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, 16 of them registered in Rosemead. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Rosemead license has been held 16 years, and the longest-standing one dates to 1981. 7 of Rosemead's 16 licenses (43.8%) 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 Rosemead: common questions
How many licensed plumbers are there in Rosemead?
16 active C-36 plumbing licenses are registered in Rosemead, out of 4,272 across Los Angeles County. 16 Rosemead-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. 16 active C-36 plumbing licenses are registered in Rosemead and 4,272 across Los Angeles County, the longest-standing issued in 1981. 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 Rosemead's 16 currently carry. 375 Los Angeles County licenses expire within 90 days.