WILLIAMSON PLUMBING AND MECHANICAL
License
- Status
- CLEAR
- First issued
- June 22, 2012
- Expires
- June 30, 2028
- Entity
- Sole Owner
- Address of record
- 9885 MESA RIM RD STE 105, San Diego, CA 92121
- Phone of record
- (858) 449 1100
Contractor bond
- Surety
- PHILADELPHIA INDEMNITY INSURANCE COMPANY
- Bond number
- PB10163411684
- Amount
- $25,000
- Effective
- June 17, 2026
Workers’ compensation
- Carrier
- SECURITY NATIONAL INSURANCE COMPANY
- Policy number
- SWC1664871
- Effective
- July 27, 2026
- Expires
- July 27, 2027
Are they licensed for your job?
A California contractor may only contract for work their classification covers. Pick the job and this reads the license on file against it.
Licensed to perform
A contractor may only contract for work within their classifications. See all 467 licensed plumbing contractors in San Diego.
People on this license
| Name | Title | Since | Through |
|---|---|---|---|
| WILLIAMSON MATT BART | Sole Owner | June 22, 2012 | Current |
Verified status badge
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Source: California Contractors State License Board public records. Coverage lapse is evaluated against today’s date; all other fields reflect the latest weekly CSLB file. Confirm at the CSLB’s official record before signing a contract.