Master Builders
Verified against CSLB on · View on CSLB
License details
- License number
- 850407
- Status
- Active
- Classifications
- A · General EngineeringB · General Building
- Contractor bond
- $25,000
- Workers' comp
- Covered
- License term on file
- November 30, 2004 – November 30, 2026
Business
- (650) 872 8028 (CSLB public record)
- 3 STARK STREET, San Francisco, CA 94133San Francisco County
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Frequently asked questions
Is Master Builders licensed in California?
Yes. Master Builders holds an active California state contractor license (CSLB #850407), verified against the CSLB public record on June 17, 2026.
What is Master Builders's CSLB license number?
Master Builders's California contractor license number is 850407. You can verify it directly on the CSLB website: https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=850407
What kind of work is Master Builders licensed for?
Master Builders is classified under General Engineering (A) by the CSLB.
How do I verify Master Builders's license myself?
Look up license #850407 with the CSLB "Check a License" tool at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=850407. 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.