TONKIN PLUMBING INC
California contractor license #519138 · Riverside, Riverside County
License
- License number
- 519138
- Status
- Clear
- Classifications
- C-36 Plumbing Contractor
- Business type
- Corporation
- Issued
- Oct 8, 1987
- Expires
- Apr 30, 2028
- Workers' compensation
- Workers' Compensation Insurance — Service American Indemnity Company
- Contractor's bond
- $25,000 — American Contractors Indemnity Company
- DIR public works registration
- Registered through Jun 30, 2028
From the California Contractors State License Board (CSLB) public license file, last updated Mar 12, 2026. Verify license #519138 on CSLB's License Check.
California public works
TONKIN PLUMBING INC appears on 4 public works projects registered with the California Department of Industrial Relations, 2 of them as the prime contractor, for 3 awarding bodies between 2024 and 2025. Projects it led total $47,995 in reported contract value.
| Date | Project | Awarding body | Role | Contract amount |
|---|---|---|---|---|
| Sep 23, 2025 | Install new pipingPlumbing & restrooms | County of Riverside - TLMA | Prime | $24,995 |
| May 2, 2025 | FV Men & Womens Restroom renovationPlumbing & restrooms | County of Riverside - TLMA | Subcontractor | $71,755 |
| Mar 13, 2025 | MWD Mills Plant and CUF facility (RiversPlumbing & restrooms | The Metropolitan Water District of Southern California | Prime | $23,000 |
| Jun 11, 2024 | BCTC 2nd Floor Restrooms RemodelPlumbing & restrooms | Riverside County Sheriff | Subcontractor | $354,241 |
Most recent 4 of 4. Contract amounts are the whole project's, as the awarding body reported them to DIR (reported since July 2024); a role is "Prime" when the awarding body registered the contractor on the project.
Awarding bodies it works for most
- County of Riverside - TLMA · 2 projects
- Riverside County Sheriff · 1 project
- The Metropolitan Water District of Southern California · 1 project
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