Y K Mason & Sons INC
Y K Mason & Sons INC operating as a corporation is licensed in California under CSLB number 1001324. The license was first issued in 2015, putting the business at 11 years on the active CSLB roster. It carries 2 CSLB classifications: B General Building Contractor and C-61/D-39 Scaffolding Contractor. Records show an active surety bond on file with Hudson Insurance Company and a previously-filed workers' compensation policy with Ace American Insurance Company that is no longer active. The business is based in San Francisco, in San Francisco County, California.
- License Number
- 1001324
- Issued
- Feb 17, 2015
- Status
- CLEAR
- Expires
- May 31, 2027
- Entity
- Corporation
- Surety
- Hudson Insurance Company
- Bond Number
- 30120417
- Effective
- May 6, 2023
- Status
- Active
- Coverage
- Leasing Firm, Temp Agency, etc
- Carrier
- Ace American Insurance Company
- Policy Number
- C58908460
- Effective
- Jun 1, 2025
- Expires
- Jun 1, 2026
This contractor has a compliance issue in its public CSLB record:
- No active workers' comp on file
An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this
Is Y K Mason & Sons INC licensed in California?
Yes. Y K Mason & Sons INC holds California Contractors State License Board license number 1001324. The license was first issued on February 17, 2015. It is valid through May 31, 2027.
What does Y K Mason & Sons INC specialize in?
Y K Mason & Sons INC is licensed for 2 CSLB classifications: B General Building Contractor and C-61/D-39 Scaffolding Contractor.
Where is Y K Mason & Sons INC headquartered?
Y K Mason & Sons INC is headquartered at P O Box 34246, San Francisco, CA 94134, in San Francisco County, California.
Does Y K Mason & Sons INC have an active surety bond on file with CSLB?
Yes. Y K Mason & Sons INC has an active California contractor surety bond filed with Hudson Insurance Company.
Does Y K Mason & Sons INC carry workers' compensation coverage?
Y K Mason & Sons INC has a previously-filed workers' compensation policy with Ace American Insurance Company that is no longer active.
How do I verify Y K Mason & Sons INC's contractor license?
You can verify Y K Mason & Sons INC's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1001324.
- License issuedFeb 17, 2015
- Bond activeMay 6, 2023
- WC coverage startsJun 1, 2025
- WC expiredJun 1, 2026
- License expiresMay 31, 2027
- Marquardt William E#396401San Francisco·A General Engineering Contractor
- Hardman-Riedell Construction#397491San Francisco·B General Building Contractor
- Western Builders#402881San Francisco·B General Building Contractor
- Rohosky Associates#402418San Francisco·B General Building Contractor
- Commins Construction CO#403734San Francisco·B General Building Contractor
- Stewart Zach R Construction Company#345870San Francisco·B General Building Contractor
- Mesa Construction#347888San Francisco·B General Building Contractor
- Allen Jonathan B#347314San Francisco·B General Building Contractor