Contractor License Proof

Williams Grading

Licensed

Verified against CSLB on · View on CSLB

License details

License number
575798
Status
Active
Classifications
A · General Engineering
Contractor bond
$25,000
Workers' comp
Covered
License term on file
August 23, 1989 – August 31, 2027

Business

  • (925) 516 0572 (CSLB public record)
  • PO BOX 1123, Discovery Bay, CA 94505Contra Costa County

Are you Williams Grading? Claim this listing to manage it.

Claim this listing

Request a free quote

Tell us about your project and we'll connect you with licensed, verified California contractors.

By submitting, you agree we may share your request with relevant licensed contractors to help with your project.

Frequently asked questions

Is Williams Grading licensed in California?

Yes. Williams Grading holds an active California state contractor license (CSLB #575798), verified against the CSLB public record on June 17, 2026.

What is Williams Grading's CSLB license number?

Williams Grading's California contractor license number is 575798. You can verify it directly on the CSLB website: https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=575798

What kind of work is Williams Grading licensed for?

Williams Grading is classified under General Engineering (A) by the CSLB.

How do I verify Williams Grading's license myself?

Look up license #575798 with the CSLB "Check a License" tool at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=575798. 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.