J Gerstenkorn Builders
Verified against CSLB on · View on CSLB
License details
- License number
- 1064688
- Status
- Active
- Classifications
- B · General Building
- Contractor bond
- $25,000
- Workers' comp
- Covered
- License term on file
- March 25, 2020 – March 31, 2028
Business
- (415) 405 6716 (CSLB public record)
- 668 RAILROD AVE UNIT C, South San Francisco, CA 94080San Mateo County
Are you J Gerstenkorn Builders? Claim this listing to manage it.
Claim this listingRequest a free quote
Tell us about your project and we'll connect you with licensed, verified California contractors.
Frequently asked questions
Is J Gerstenkorn Builders licensed in California?
Yes. J Gerstenkorn Builders holds an active California state contractor license (CSLB #1064688), verified against the CSLB public record on June 17, 2026.
What is J Gerstenkorn Builders's CSLB license number?
J Gerstenkorn Builders's California contractor license number is 1064688. You can verify it directly on the CSLB website: https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1064688
What kind of work is J Gerstenkorn Builders licensed for?
J Gerstenkorn Builders is classified under General Building (B) by the CSLB.
How do I verify J Gerstenkorn Builders's license myself?
Look up license #1064688 with the CSLB "Check a License" tool at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1064688. 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.