Contractor License Proof

O'Brien & Sons Construction

Licensed

Verified against CSLB on · View on CSLB

License details

License number
443761
Status
Active
Classifications
B · General Building
Contractor bond
$25,000
Workers' comp
Covered
License term on file
August 1, 1983 – August 31, 2027

Business

  • (650) 342 3280 (CSLB public record)
  • 1145 BALBOA AVENUE, Burlingame, CA 94010San Mateo County

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Frequently asked questions

Is O'Brien & Sons Construction licensed in California?

Yes. O'Brien & Sons Construction holds an active California state contractor license (CSLB #443761), verified against the CSLB public record on June 17, 2026.

What is O'Brien & Sons Construction's CSLB license number?

O'Brien & Sons Construction's California contractor license number is 443761. 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 O'Brien & Sons Construction licensed for?

O'Brien & Sons Construction is classified under General Building (B) by the CSLB.

How do I verify O'Brien & Sons Construction's license myself?

Look up license #443761 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 #443761 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.