Contractor License Proof

Bierman Backflow Service

Licensed

Verified against CSLB on · View on CSLB

License details

License number
838157
Status
Active
Classifications
C-36 · Plumbing
Contractor bond
$25,000
Workers' comp
Exempt
License term on file
May 14, 2004 – May 31, 2028

Business

  • (949) 548 2722 (CSLB public record)
  • 1048 IRVINE AVENUE #413, Newport Beach, CA 92660Orange County

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Frequently asked questions

Is Bierman Backflow Service licensed in California?

Yes. Bierman Backflow Service holds an active California state contractor license (CSLB #838157), verified against the CSLB public record on June 17, 2026.

What is Bierman Backflow Service's CSLB license number?

Bierman Backflow Service's California contractor license number is 838157. You can verify it directly on the CSLB website: https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=838157

What kind of work is Bierman Backflow Service licensed for?

Bierman Backflow Service is classified under Plumbing (C-36) by the CSLB.

How do I verify Bierman Backflow Service's license myself?

Look up license #838157 with the CSLB "Check a License" tool at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=838157. This page reflects the CSLB public record as of June 17, 2026.

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