Cornerstone Roofing Inc
Verified against CSLB on · View on CSLB
License details
- License number
- 909400
- Status
- Active
- Classifications
- C-39 · Roofing
- Contractor bond
- $25,000
- Workers' comp
- Covered
- License term on file
- January 18, 2008 – January 31, 2028
Business
- cornerstoneroofs.com
- +17075463547
- PO BOX 2059 SEBASTOPOL, Sebastopol, CA 95473Sonoma County
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Frequently asked questions
Is Cornerstone Roofing Inc licensed in California?
Yes. Cornerstone Roofing Inc holds an active California state contractor license (CSLB #909400), verified against the CSLB public record on June 17, 2026.
What is Cornerstone Roofing Inc's CSLB license number?
Cornerstone Roofing Inc's California contractor license number is 909400. You can verify it directly on the CSLB website: https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=909400
What kind of work is Cornerstone Roofing Inc licensed for?
Cornerstone Roofing Inc is classified under Roofing (C-39) by the CSLB.
How do I verify Cornerstone Roofing Inc's license myself?
Look up license #909400 with the CSLB "Check a License" tool at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=909400. 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.