Prostone Services
Verified against CSLB on · View on CSLB
License details
- License number
- 954056
- Status
- Active
- Classifications
- C-54 · Ceramic and Mosaic Tile
- Contractor bond
- $25,000
- Workers' comp
- Covered
- License term on file
- November 1, 2010 – November 30, 2026
Business
- (650) 593 6285 (CSLB public record)
- 1190 MTN VIEW-ALVISO RD STE M, Sunnyvale, CA 94089Santa Clara County
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Frequently asked questions
Is Prostone Services licensed in California?
Yes. Prostone Services holds an active California state contractor license (CSLB #954056), verified against the CSLB public record on June 17, 2026.
What is Prostone Services's CSLB license number?
Prostone Services's California contractor license number is 954056. You can verify it directly on the CSLB website: https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=954056
What kind of work is Prostone Services licensed for?
Prostone Services is classified under Ceramic and Mosaic Tile (C-54) by the CSLB.
How do I verify Prostone Services's license myself?
Look up license #954056 with the CSLB "Check a License" tool at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=954056. 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.