Contractor License Proof

Williams Underground Construction Inc

Licensed

Verified against CSLB on · View on CSLB

License details

License number
787857
Status
Active
Classifications
C-36 · PlumbingC-42 · Sanitation System
Contractor bond
$25,000
Workers' comp
Covered
License term on file
November 28, 2000 – October 31, 2026

Business

  • (925) 837 6766 (CSLB public record)
  • 7063 SARONI DRIVE, Oakland, CA 94611Alameda County

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Frequently asked questions

Is Williams Underground Construction Inc licensed in California?

Yes. Williams Underground Construction Inc holds an active California state contractor license (CSLB #787857), verified against the CSLB public record on June 17, 2026.

What is Williams Underground Construction Inc's CSLB license number?

Williams Underground Construction Inc's California contractor license number is 787857. You can verify it directly on the CSLB website: https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=787857

What kind of work is Williams Underground Construction Inc licensed for?

Williams Underground Construction Inc is classified under Plumbing (C-36) by the CSLB.

How do I verify Williams Underground Construction Inc's license myself?

Look up license #787857 with the CSLB "Check a License" tool at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=787857. 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.