Williamson Plumbing and Mechanical, C-36 Plumbing Contractor in San Diego, CA
Williamson Plumbing and Mechanical operating as a sole owner holds California contractor license #974182, which is currently expired (lapsed Jun 30, 2026) and not valid to contract until it is renewed. First issued in 2012, the license has been on the CSLB roster for 14 years. It carries a single CSLB classification: C-36 — Plumbing Contractor. Records show an active surety bond on file with American Contractors Indemnity Company and a previously-filed workers' compensation policy with Employers Compensation Insurance Company that is no longer active. The business is based in San Diego, in San Diego County, California.
- License Number
- 974182
- Issued
- Jun 22, 2012
- Status
- CLEAR
- Expires
- Jun 30, 2026
- Entity
- Sole Owner
- Surety
- American Contractors Indemnity Company
- Bond Number
- 100862752
- Effective
- Jun 17, 2024
- Status
- Active
- Coverage
- Workers' Compensation Insurance
- Carrier
- Employers Compensation Insurance Company
- Policy Number
- EIG596989300
- Effective
- Jul 27, 2025
- Expires
- Jul 27, 2026
This contractor has a compliance issue in its public CSLB record:
- License expired
- No active workers' comp on file
An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this
Is Williamson Plumbing and Mechanical licensed in California?
Williamson Plumbing and Mechanical previously held California Contractors State License Board license number 974182, but the license expired on June 30, 2026 and is not currently valid. It was first issued on June 22, 2012.
What does Williamson Plumbing and Mechanical specialize in?
Williamson Plumbing and Mechanical is licensed for one CSLB classification: C-36 Plumbing Contractor.
Where is Williamson Plumbing and Mechanical headquartered?
Williamson Plumbing and Mechanical is headquartered at 9885 Mesa Rim Rd Ste 105, San Diego, CA 92121, in San Diego County, California.
Does Williamson Plumbing and Mechanical have an active surety bond on file with CSLB?
Yes. Williamson Plumbing and Mechanical has an active California contractor surety bond filed with American Contractors Indemnity Company.
Does Williamson Plumbing and Mechanical carry workers' compensation coverage?
Williamson Plumbing and Mechanical has a previously-filed workers' compensation policy with Employers Compensation Insurance Company that is no longer active.
How do I verify Williamson Plumbing and Mechanical's contractor license?
You can verify Williamson Plumbing and Mechanical's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=974182.
- License issuedJun 22, 2012
- Bond activeJun 17, 2024
- WC coverage startsJul 27, 2025
- License expiredJun 30, 2026
- WC expiredJul 27, 2026
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