Best Licensed Plumbers in Pacheco, CA
4 plumbing companies registered in Pacheco 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.
- 484 active C-36 plumbing licenses in Contra Costa County; 4 registered in Pacheco
- 2 of Pacheco'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 Pacheco: 2 years
- Longest Pacheco licensure: since 1990
- 37 county licenses reach their expiration date within 90 days
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- Verified
- August 17, 2026
- Licensed since
- 2006
- Phone
- (925) 825-5625
- Verified
- August 17, 2026
- Licensed since
- 2023
- Phone
- (925) 270-3195
- Verified
- August 17, 2026
- Licensed since
- 1990
- Phone
- (702) 587-2209
- Verified
- August 17, 2026
- Licensed since
- 2026
- Phone
- (925) 316-5893
Compare the top 4 at a glance
| Company | License | Workers' comp | Licensed since |
|---|---|---|---|
| Kevin M. Sullivan & Associates Inc. | #887975 | On file | 2006 |
| Flowing Water | #1111542 | On file | 2023 |
| C B A Home Building Services | #589422 | Exempt or none on file | 1990 |
| Tier 1 Plumbing | #1158503 | Exempt or none on file | 2026 |
Contra Costa County plumbing licensure at a glance
California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 484 active C-36 plumbing licenses in Contra Costa County, 4 of them registered in Pacheco. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Pacheco license has been held 2 years, and the longest-standing one dates to 1990. 2 of Pacheco'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: 484 of the county's 484 licenses carry the same $25,000 bond California sets by statute. 37 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 Pacheco: common questions
How many licensed plumbers are there in Pacheco?
4 active C-36 plumbing licenses are registered in Pacheco, out of 484 across Contra Costa County. 4 Pacheco-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 Pacheco and 484 across Contra Costa County, the longest-standing issued in 1990. 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 Pacheco's 4 currently carry. 37 Contra Costa County licenses expire within 90 days.