Best Licensed Plumbers in Gustine, CA
4 plumbing companies registered in Gustine 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.
- 66 active C-36 plumbing licenses in Merced County; 4 registered in Gustine
- 4 of Gustine's 4 licenses (100.0%) carry current workers' compensation cover, not liability insurance; a blank usually means an owner-operator with no employees
- Median time licensed in Gustine: 8 years
- Longest Gustine licensure: since 2010
- 7 county licenses reach their expiration date within 90 days
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- Verified
- August 17, 2026
- Licensed since
- 2010
- Phone
- (209) 854-1800
- Verified
- August 17, 2026
- Licensed since
- 2017
- Phone
- (209) 261-0938
- Verified
- August 17, 2026
- Licensed since
- 2018
- Phone
- (800) 671-4129
- Verified
- August 17, 2026
- Licensed since
- 2025
- Phone
- (831) 713-0573
Compare the top 4 at a glance
| Company | License | Workers' comp | Licensed since |
|---|---|---|---|
| A Plus Plumbing LLC | #955459 | On file | 2010 |
| Advanced Copper Systems Plumbing Mechanical | #1030416 | On file | 2017 |
| Bay And Valley Backflow Services | #1040251 | On file | 2018 |
| Gold Star Plumbing | #1144580 | On file | 2025 |
Merced County plumbing licensure at a glance
California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 66 active C-36 plumbing licenses in Merced County, 4 of them registered in Gustine. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Gustine license has been held 8 years, and the longest-standing one dates to 2010. 4 of Gustine's 4 licenses (100.0%) 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: 66 of the county's 66 licenses carry the same $25,000 bond California sets by statute. 7 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 Gustine: common questions
How many licensed plumbers are there in Gustine?
4 active C-36 plumbing licenses are registered in Gustine, out of 66 across Merced County. 4 Gustine-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 Gustine and 66 across Merced County, the longest-standing issued in 2010. 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 4 of Gustine's 4 currently carry. 7 Merced County licenses expire within 90 days.