Contractor License Proof

Interlock Plumbing

Licensed

Verified against CSLB on · View on CSLB

License details

License number
1149890
Status
Active
Classifications
C-36 · Plumbing
Contractor bond
$25,000
Workers' comp
Covered
License term on file
February 3, 2026 – February 29, 2028

Business

  • (510) 932 0391 (CSLB public record)
  • 4045 ROCKFORD DR, Antioch, CA 94509Contra Costa County

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Frequently asked questions

Is Interlock Plumbing licensed in California?

Yes. Interlock Plumbing holds an active California state contractor license (CSLB #1149890), verified against the CSLB public record on June 17, 2026.

What is Interlock Plumbing's CSLB license number?

Interlock Plumbing's California contractor license number is 1149890. You can verify it directly on the CSLB website: https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1149890

What kind of work is Interlock Plumbing licensed for?

Interlock Plumbing is classified under Plumbing (C-36) by the CSLB.

How do I verify Interlock Plumbing's license myself?

Look up license #1149890 with the CSLB "Check a License" tool at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1149890. 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.