Contractor License Proof

Advanced Window Systems

Licensed

Verified against CSLB on · View on CSLB

License details

License number
598861
Status
Active
Classifications
C-17 · Glazing
Contractor bond
$25,000
Workers' comp
Exempt
License term on file
July 25, 1990 – July 31, 2026

Business

  • (650) 591 5253 (CSLB public record)
  • 1406 OLD COUNTY ROAD, Belmont, CA 94002San Mateo County

Are you Advanced Window Systems? 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 Advanced Window Systems licensed in California?

Yes. Advanced Window Systems holds an active California state contractor license (CSLB #598861), verified against the CSLB public record on June 17, 2026.

What is Advanced Window Systems's CSLB license number?

Advanced Window Systems's California contractor license number is 598861. You can verify it directly on the CSLB website: https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=598861

What kind of work is Advanced Window Systems licensed for?

Advanced Window Systems is classified under Glazing (C-17) by the CSLB.

How do I verify Advanced Window Systems's license myself?

Look up license #598861 with the CSLB "Check a License" tool at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=598861. 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.