Down Under Plumbing, C-36 Plumbing Contractor in Sausalito, CA
Down Under Plumbing operating as a sole owner holds an active California contractor license (CSLB #748262), valid through Apr 30, 2028. First issued in 1998, the license has been on the CSLB roster for 28 years. It carries a single CSLB classification: C-36 — Plumbing Contractor. Records show an active surety bond on file with Atlantic Specialty Insurance Company and an exempt workers' compensation status (no employees on payroll). The business is based in Sausalito, in Marin County, California.
- License Number
- 748262
- Issued
- Apr 20, 1998
- Status
- CLEAR
- Expires
- Apr 30, 2028
- Entity
- Sole Owner
- Surety
- Atlantic Specialty Insurance Company
- Bond Number
- 800233808
- Effective
- Feb 15, 2026
- Status
- Active
- Coverage
- Exempt
- Carrier
- —
- Policy Number
- —
- Effective
- Apr 13, 2026
- 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 Down Under Plumbing licensed in California?
Yes. Down Under Plumbing holds California Contractors State License Board license number 748262, which is active and in good standing. The license was first issued on April 20, 1998. It is valid through April 30, 2028.
What does Down Under Plumbing specialize in?
Down Under Plumbing is licensed for one CSLB classification: C-36 Plumbing Contractor.
Where is Down Under Plumbing headquartered?
Down Under Plumbing is headquartered at P O Box 627, Sausalito, CA 94966, in Marin County, California.
Does Down Under Plumbing have an active surety bond on file with CSLB?
Yes. Down Under Plumbing has an active California contractor surety bond filed with Atlantic Specialty Insurance Company.
Does Down Under Plumbing carry workers' compensation coverage?
Down Under Plumbing reports an exempt workers' compensation status, meaning the business has no employees on payroll.
How do I verify Down Under Plumbing's contractor license?
You can verify Down Under Plumbing's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=748262.
- License issuedApr 20, 1998
- Bond activeFeb 15, 2026
- WC coverage startsApr 13, 2026
- License expiresApr 30, 2028
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