Keystone Builder
Verified against CSLB on · View on CSLB
CSLB reason on file: Contr Bond Susp
License details
- License number
- 646014
- Status
- Suspended
- Classifications
- B · General Building
- Contractor bond
- $25,000
- Workers' comp
- Exempt
- License term on file
- May 23, 1992 – May 31, 2027
Business
- (925) 786 2555 (CSLB public record)
- 776 AUTUMN DR, Walnut Creek, CA 94598Contra Costa County
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Frequently asked questions
Is Keystone Builder licensed in California?
Keystone Builder's California contractor license (CSLB #646014) is currently suspended as of our June 17, 2026 check of the CSLB public record. CSLB reason on file: Contr Bond Susp. Always confirm the current status on CSLB before hiring.
What is Keystone Builder's CSLB license number?
Keystone Builder's California contractor license number is 646014. You can verify it directly on the CSLB website: https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=646014
What kind of work is Keystone Builder licensed for?
Keystone Builder is classified under General Building (B) by the CSLB.
How do I verify Keystone Builder's license myself?
Look up license #646014 with the CSLB "Check a License" tool at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=646014. 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.