Contractor License Proof

Costello Jeff Electric

Licensed

Verified against CSLB on · View on CSLB

License details

License number
849767
Status
Active
Classifications
C-10 · Electrical
Contractor bond
$25,000
Workers' comp
Covered
License term on file
November 6, 2004 – November 30, 2026

Business

  • (650) 255 0040 (CSLB public record)
  • 300 SANTA CLARA WAY, San Mateo, CA 94403San Mateo County

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Frequently asked questions

Is Costello Jeff Electric licensed in California?

Yes. Costello Jeff Electric holds an active California state contractor license (CSLB #849767), verified against the CSLB public record on June 17, 2026.

What is Costello Jeff Electric's CSLB license number?

Costello Jeff Electric's California contractor license number is 849767. 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 Costello Jeff Electric licensed for?

Costello Jeff Electric is classified under Electrical (C-10) by the CSLB.

How do I verify Costello Jeff Electric's license myself?

Look up license #849767 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 #849767 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.