Contractor License Proof

John Chang

Licensed

Verified against CSLB on · View on CSLB

License details

License number
641970
Status
Active
Classifications
C-10 · Electrical
Contractor bond
$25,000
Workers' comp
Exempt
License term on file
April 11, 1992 – April 30, 2028

Business

  • (626) 430 9066 (CSLB public record)
  • 100 N BARRANCA ST SUITE 200, West Covina, CA 91791Los Angeles County

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Frequently asked questions

Is John Chang licensed in California?

Yes. John Chang holds an active California state contractor license (CSLB #641970), verified against the CSLB public record on June 17, 2026.

What is John Chang's CSLB license number?

John Chang's California contractor license number is 641970. You can verify it directly on the CSLB website: https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=641970

What kind of work is John Chang licensed for?

John Chang is classified under Electrical (C-10) by the CSLB.

How do I verify John Chang's license myself?

Look up license #641970 with the CSLB "Check a License" tool at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=641970. 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.