Blackstone S R Construction INC, B General Building Contractor in Castro Valley, CA
Blackstone S R Construction INC operating as a corporation holds an active California contractor license (CSLB #520142), valid through Nov 30, 2027. First issued in 1987, the license has been on the CSLB roster for 39 years. It carries a single CSLB classification: B — General Building Contractor. Records show an active surety bond on file with American Contractors Indemnity Company and an exempt workers' compensation status (no employees on payroll). The business is based in Castro Valley, in Alameda County, California.
- License Number
- 520142
- Issued
- Nov 2, 1987
- Status
- CLEAR
- Expires
- Nov 30, 2027
- Entity
- Corporation
- Surety
- American Contractors Indemnity Company
- Bond Number
- SC650650
- Effective
- Jan 1, 2023
- Status
- Active
- Coverage
- Exempt
- Carrier
- —
- Policy Number
- —
- Effective
- Oct 27, 2025
- Expires
- —
This contractor warrants a closer look before contracting:
- Workers' comp listed as exempt
An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this
Is Blackstone S R Construction INC licensed in California?
Yes. Blackstone S R Construction INC holds California Contractors State License Board license number 520142, which is active and in good standing. The license was first issued on November 2, 1987. It is valid through November 30, 2027.
What does Blackstone S R Construction INC specialize in?
Blackstone S R Construction INC is licensed for one CSLB classification: B General Building Contractor.
Where is Blackstone S R Construction INC headquartered?
Blackstone S R Construction INC is headquartered at 2941 Dominic Court, Castro Valley, CA 94546, in Alameda County, California.
Does Blackstone S R Construction INC have an active surety bond on file with CSLB?
Yes. Blackstone S R Construction INC has an active California contractor surety bond filed with American Contractors Indemnity Company.
Does Blackstone S R Construction INC carry workers' compensation coverage?
Blackstone S R Construction INC reports an exempt workers' compensation status, meaning the business has no employees on payroll.
How do I verify Blackstone S R Construction INC's contractor license?
You can verify Blackstone S R Construction INC's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=520142.
- License issuedNov 2, 1987
- Bond activeJan 1, 2023
- WC coverage startsOct 27, 2025
- License expiresNov 30, 2027
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