Contractor License Proof

Keystone General Construction Co

Licensed

Verified against CSLB on · View on CSLB

License details

License number
509108
Status
Active
Classifications
A · General EngineeringB · General BuildingHAZ · Hazardous Substance Removal Certification
Contractor bond
$25,000
Workers' comp
Exempt
License term on file
April 15, 1987 – April 30, 2027

Business

  • (818) 398 5511 (CSLB public record)
  • P O BOX 454, Moorpark, CA 93021Ventura County

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Frequently asked questions

Is Keystone General Construction Co licensed in California?

Yes. Keystone General Construction Co holds an active California state contractor license (CSLB #509108), verified against the CSLB public record on June 17, 2026.

What is Keystone General Construction Co's CSLB license number?

Keystone General Construction Co's California contractor license number is 509108. You can verify it directly on the CSLB website: https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=509108

What kind of work is Keystone General Construction Co licensed for?

Keystone General Construction Co is classified under General Engineering (A) by the CSLB.

How do I verify Keystone General Construction Co's license myself?

Look up license #509108 with the CSLB "Check a License" tool at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=509108. 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.