Hammer Construction Company
Verified against CSLB on · View on CSLB
License details
- License number
- 642039
- Classifications
- License term on file
- April 11, 1992 – April 30, 2028
Business
- (619) 726 8023 (CSLB public record)
- 3348 CYPRESS_ST, National City, CA 91950San Diego County
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What to check next
Frequently asked questions
Is Hammer Construction Company licensed in California?
Yes. Hammer Construction Company holds an active California state contractor license (CSLB #642039), verified against the CSLB public record on June 17, 2026.
What is Hammer Construction Company's CSLB license number?
Hammer Construction Company's California contractor license number is 642039. 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 Hammer Construction Company licensed for?
Hammer Construction Company is classified under General Engineering (A) and Concrete (C-8) by the CSLB.
How do I verify Hammer Construction Company's license myself?
Look up license #642039 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 #642039 on CSLB
See an error in this record? Report incorrect information. Status reflects CSLB data as of the date shown above.