Contractor License Proof

Protopappas John

Licensed

Verified against CSLB on · View on CSLB

License details

License number
589755
Status
Active
Classifications
B · General Building
Contractor bond
$25,000
Workers' comp
Exempt
License term on file
March 7, 1990 – December 31, 2026

Business

  • (510) 452 2944 (CSLB public record)
  • 3697 MT DIABLO BLVDSUITE 300, Lafayette, CA 945493747Contra Costa County

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Frequently asked questions

Is Protopappas John licensed in California?

Yes. Protopappas John holds an active California state contractor license (CSLB #589755), verified against the CSLB public record on June 17, 2026.

What is Protopappas John's CSLB license number?

Protopappas John's California contractor license number is 589755. You can verify it directly on the CSLB website: https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=589755

What kind of work is Protopappas John licensed for?

Protopappas John is classified under General Building (B) by the CSLB.

How do I verify Protopappas John's license myself?

Look up license #589755 with the CSLB "Check a License" tool at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=589755. 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.