O'Brien Builders
Verified against CSLB on · View on CSLB
License details
- License number
- 407631
- Classifications
- License term on file
- June 30, 1981 – April 30, 2027
Business
- (707) 864 2615 (CSLB public record)
- PO BOX 760, Napa, CA 94559Napa County
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What to check next
Frequently asked questions
Is O'Brien Builders licensed in California?
Yes. O'Brien Builders holds an active California state contractor license (CSLB #407631), verified against the CSLB public record on June 17, 2026.
What is O'Brien Builders's CSLB license number?
O'Brien Builders's California contractor license number is 407631. 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 Builders licensed for?
O'Brien Builders is classified under General Building (B) by the CSLB.
How do I verify O'Brien Builders's license myself?
Look up license #407631 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 #407631 on CSLB
See an error in this record? Report incorrect information. Status reflects CSLB data as of the date shown above.