Contractor License Proof

Williams Excavation Inc

Licensed

Verified against CSLB on · View on CSLB

License details

License number
435145
Status
Active
Classifications
A · General EngineeringHAZ · Hazardous Substance Removal Certification
Contractor bond
$25,000
Workers' comp
Covered
License term on file
February 15, 1983 – March 31, 2028

Business

  • (209) 769 5807 (CSLB public record)
  • 5177 GOINS WAY, Mariposa, CA 95338Mariposa County

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Frequently asked questions

Is Williams Excavation Inc licensed in California?

Yes. Williams Excavation Inc holds an active California state contractor license (CSLB #435145), verified against the CSLB public record on June 17, 2026.

What is Williams Excavation Inc's CSLB license number?

Williams Excavation Inc's California contractor license number is 435145. 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 Williams Excavation Inc licensed for?

Williams Excavation Inc is classified under General Engineering (A) and Hazardous Substance Removal Certification (HAZ) by the CSLB.

How do I verify Williams Excavation Inc's license myself?

Look up license #435145 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 #435145 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.