3 A Plumbing, C-36 Plumbing Contractor in San Bruno, CA
3 A Plumbing operating as a sole owner holds an active California contractor license (CSLB #1104773), valid through May 31, 2027. First issued in 2023, the license has been on the CSLB roster for 3 years. It carries a single CSLB classification: C-36 — Plumbing Contractor. Records show an active surety bond on file with Philadelphia Indemnity Insurance Company and an exempt workers' compensation status (no employees on payroll). The business is based in San Bruno, in San Mateo County, California.
- License Number
- 1104773
- Issued
- May 15, 2023
- Status
- CLEAR
- Expires
- May 31, 2027
- Entity
- Sole Owner
- Surety
- Philadelphia Indemnity Insurance Company
- Bond Number
- PB10163408711
- Effective
- Apr 13, 2026
- Status
- Active
- Coverage
- Exempt
- Carrier
- —
- Policy Number
- —
- Effective
- Apr 28, 2025
- Expires
- —
This contractor warrants a closer look before contracting:
- Workers' comp listed as exempt
An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this
Is 3 A Plumbing licensed in California?
Yes. 3 A Plumbing holds California Contractors State License Board license number 1104773, which is active and in good standing. The license was first issued on May 15, 2023. It is valid through May 31, 2027.
What does 3 A Plumbing specialize in?
3 A Plumbing is licensed for one CSLB classification: C-36 Plumbing Contractor.
Where is 3 A Plumbing headquartered?
3 A Plumbing is headquartered at Po Box 1145, San Bruno, CA 94066, in San Mateo County, California.
Does 3 A Plumbing have an active surety bond on file with CSLB?
Yes. 3 A Plumbing has an active California contractor surety bond filed with Philadelphia Indemnity Insurance Company.
Does 3 A Plumbing carry workers' compensation coverage?
3 A Plumbing reports an exempt workers' compensation status, meaning the business has no employees on payroll.
How do I verify 3 A Plumbing's contractor license?
You can verify 3 A Plumbing's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1104773.
- License issuedMay 15, 2023
- WC coverage startsApr 28, 2025
- Bond activeApr 13, 2026
- License expiresMay 31, 2027
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