Contractor License Proof

1 Backflow Plumbing

Licensed

Verified against CSLB on · View on CSLB

License details

License number
807692
Status
Active
Classifications
B · General BuildingC-36 · Plumbing
Contractor bond
$25,000
Workers' comp
Covered
License term on file
May 6, 2002 – May 31, 2028

Business

  • (415) 913 8941 (CSLB public record)
  • 5635 ANZA ST 3, San Francisco, CA 94121San Francisco County

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Frequently asked questions

Is 1 Backflow Plumbing licensed in California?

Yes. 1 Backflow Plumbing holds an active California state contractor license (CSLB #807692), verified against the CSLB public record on June 17, 2026.

What is 1 Backflow Plumbing's CSLB license number?

1 Backflow Plumbing's California contractor license number is 807692. Look that number up with the CSLB "Check a License" tool to confirm its current status against the public record yourself.

What kind of work is 1 Backflow Plumbing licensed for?

1 Backflow Plumbing is classified under General Building (B) and Plumbing (C-36) by the CSLB.

How do I verify 1 Backflow Plumbing's license myself?

Look up license #807692 with the CSLB "Check a License" tool and compare the status, bond, and workers' compensation details against what's shown on this page. This page reflects the CSLB public record as of June 17, 2026.

Verify it yourself: How to verify a California contractor license · Look up #807692 on CSLB

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See an error in this record? Report incorrect information. Status reflects CSLB data as of the date shown above.