Contractor License Proof

William Cook Plumbing & Construction Incorporated

Licensed

Verified against CSLB on · View on CSLB

License details

License number
1020317
Status
Active
Classifications
B · General BuildingC-36 · PlumbingC-42 · Sanitation System
Contractor bond
$25,000
Workers' comp
Covered
License term on file
November 4, 2016 – November 30, 2026

Business

  • (925) 980 2141 (CSLB public record)
  • 1428 ANGUS ST, Patterson, CA 95363Stanislaus County

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Frequently asked questions

Is William Cook Plumbing & Construction Incorporated licensed in California?

Yes. William Cook Plumbing & Construction Incorporated holds an active California state contractor license (CSLB #1020317), verified against the CSLB public record on June 17, 2026.

What is William Cook Plumbing & Construction Incorporated's CSLB license number?

William Cook Plumbing & Construction Incorporated's California contractor license number is 1020317. 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 William Cook Plumbing & Construction Incorporated licensed for?

William Cook Plumbing & Construction Incorporated is classified under General Building (B), Plumbing (C-36), and Sanitation System (C-42) by the CSLB.

How do I verify William Cook Plumbing & Construction Incorporated's license myself?

Look up license #1020317 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 #1020317 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.