Contractor License Proof

Cal Building Systems Inc

Licensed

Verified against CSLB on · View on CSLB

License details

License number
521087
Status
Active
Classifications
C-10 · ElectricalC-16 · Fire ProtectionC-7 · Low Voltage Systems
Contractor bond
$25,000
Workers' comp
Covered
License term on file
November 19, 1987 – November 30, 2027

Business

  • (714) 993 9650 (CSLB public record)
  • 3900 PROSPECT AVE UNIT B, Yorba Linda, CA 92886Orange County

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Frequently asked questions

Is Cal Building Systems Inc licensed in California?

Yes. Cal Building Systems Inc holds an active California state contractor license (CSLB #521087), verified against the CSLB public record on June 17, 2026.

What is Cal Building Systems Inc's CSLB license number?

Cal Building Systems Inc's California contractor license number is 521087. 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 Cal Building Systems Inc licensed for?

Cal Building Systems Inc is classified under Electrical (C-10), Fire Protection (C-16), and Low Voltage Systems (C-7) by the CSLB.

How do I verify Cal Building Systems Inc's license myself?

Look up license #521087 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 #521087 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.