Sovereignty Plumbing, C-36 Plumbing Contractor in South San Francisco, CA
Sovereignty Plumbing operating as a sole owner holds an active California contractor license (CSLB #915499), valid through Sep 30, 2026. First issued in 2008, the license has been on the CSLB roster for 18 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 an exempt workers' compensation status (no employees on payroll). The business is based in South San Francisco, in San Mateo County, California.
- License Number
- 915499
- Issued
- May 9, 2008
- Status
- CLEAR
- Expires
- Sep 30, 2026
- Entity
- Sole Owner
- Surety
- American Contractors Indemnity Company
- Bond Number
- 100958458
- Effective
- Mar 17, 2025
- Status
- Active
- Coverage
- Exempt
- Carrier
- —
- Policy Number
- —
- Effective
- Nov 15, 2024
- Expires
- —
This contractor warrants a closer look before contracting:
- License expires in 26 days
- Workers' comp listed as exempt
An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this
Is Sovereignty Plumbing licensed in California?
Yes. Sovereignty Plumbing holds California Contractors State License Board license number 915499, which is active and in good standing. The license was first issued on May 9, 2008. It is valid through September 30, 2026.
What does Sovereignty Plumbing specialize in?
Sovereignty Plumbing is licensed for one CSLB classification: C-36 Plumbing Contractor.
Where is Sovereignty Plumbing headquartered?
Sovereignty Plumbing is headquartered at 102 Mountain Road, South San Francisco, CA 94080, in San Mateo County, California.
Does Sovereignty Plumbing have an active surety bond on file with CSLB?
Yes. Sovereignty Plumbing has an active California contractor surety bond filed with American Contractors Indemnity Company.
Does Sovereignty Plumbing carry workers' compensation coverage?
Sovereignty Plumbing reports an exempt workers' compensation status, meaning the business has no employees on payroll.
How do I verify Sovereignty Plumbing's contractor license?
You can verify Sovereignty Plumbing's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=915499.
- License issuedMay 9, 2008
- WC coverage startsNov 15, 2024
- Bond activeMar 17, 2025
- License expiresSep 30, 2026
- Advance Systems and Design#626704Redwood City·C-36 Plumbing Contractor
- Nolasco Construction Group#626336Menlo Park·B General Building Contractor
- Lovazzano Mechanical Incorporated#619015Menlo Park·C-16 Fire Protection Contractor
- Gruber Plumbing#619639Moss Beach·B General Building Contractor
- Henry H R Plumbing#614767Half Moon Bay·C-36 Plumbing Contractor
- Regina Plumbing INC#615954San Carlos·C-36 Plumbing Contractor
- Economy Plumbing#613784Burlingame·A General Engineering Contractor
- Allen Mechanical Plumbing CO#611082So San Francisco·C-36 Plumbing Contractor
Working a California job with Sovereignty Plumbing, or chasing an unpaid invoice? These free tools track your mechanics lien deadlines and rights under California Civil Code §§8200–8848.
- California preliminary notice deadline calculatorFind your 20-day deadline and the lien rights at risk.
- Do I need a preliminary notice in California?Answer a few questions to see if the 20-day notice applies.
- Did I lose my California lien rights?Check whether your mechanics lien window has passed.
- Unpaid construction invoice in CaliforniaYour options and deadlines for collecting on a California job.
Own Sovereignty Plumbing? Claim or correct this profile