A - 1 Construction
Verified against CSLB on · View on CSLB
License details
- License number
- 690238
- Status
- Active
- Classifications
- A · General Engineering
- Contractor bond
- $25,000
- Workers' comp
- Covered
- License term on file
- June 13, 1994 – October 31, 2026
Business
- (415) 810 4231 (CSLB public record)
- 424 COLE ST, San Francisco, CA 94117San Francisco County
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Frequently asked questions
Is A - 1 Construction licensed in California?
Yes. A - 1 Construction holds an active California state contractor license (CSLB #690238), verified against the CSLB public record on June 17, 2026.
What is A - 1 Construction's CSLB license number?
A - 1 Construction's California contractor license number is 690238. You can verify it directly on the CSLB website: https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=690238
What kind of work is A - 1 Construction licensed for?
A - 1 Construction is classified under General Engineering (A) by the CSLB.
How do I verify A - 1 Construction's license myself?
Look up license #690238 with the CSLB "Check a License" tool at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=690238. This page reflects the CSLB public record as of June 17, 2026.
See an error in this record? Report incorrect information. Status reflects CSLB data as of the date shown above.