Sandstone Environmental Engineering INC, A General Engineering Contractor in Oakley, CA
Sandstone Environmental Engineering INC operating as a corporation holds California contractor license #878348, which is currently expired (lapsed Jul 31, 2026) and not valid to contract until it is renewed. First issued in 2006, the license has been on the CSLB roster for 20 years. It carries 5 CSLB classifications: A General Engineering Contractor, B General Building Contractor, C-12 Earthwork and Paving Contractor, C-21 Building Moving / Demolition Contractor, and C-22 Asbestos Abatement Contractor. Records show an active surety bond on file with Western Surety Company and a previously-filed workers' compensation policy with State Compensation Insurance Fund that is no longer active. The business is based in Oakley, in Contra Costa County, California.
- License Number
- 878348
- Issued
- May 24, 2006
- Status
- CLEAR
- Expires
- Jul 31, 2026
- Entity
- Corporation
- Surety
- Western Surety Company
- Bond Number
- 66985704
- Effective
- Jul 27, 2024
- Status
- Active
- Coverage
- Workers' Compensation Insurance
- Carrier
- State Compensation Insurance Fund
- Policy Number
- 1972485
- Effective
- Jul 26, 2025
- Expires
- Jul 26, 2026
This contractor has a compliance issue in its public CSLB record:
- License expired
- 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 Sandstone Environmental Engineering INC licensed in California?
Sandstone Environmental Engineering INC previously held California Contractors State License Board license number 878348, but the license expired on July 31, 2026 and is not currently valid. It was first issued on May 24, 2006.
What does Sandstone Environmental Engineering INC specialize in?
Sandstone Environmental Engineering INC is licensed for 5 CSLB classifications: A General Engineering Contractor, B General Building Contractor, C-12 Earthwork and Paving Contractor, C-21 Building Moving / Demolition Contractor, and C-22 Asbestos Abatement Contractor.
Where is Sandstone Environmental Engineering INC headquartered?
Sandstone Environmental Engineering INC is headquartered at P O Box 1049, Oakley, CA 94561, in Contra Costa County, California.
Does Sandstone Environmental Engineering INC have an active surety bond on file with CSLB?
Yes. Sandstone Environmental Engineering INC has an active California contractor surety bond filed with Western Surety Company.
Does Sandstone Environmental Engineering INC carry workers' compensation coverage?
Sandstone Environmental Engineering INC has a previously-filed workers' compensation policy with State Compensation Insurance Fund that is no longer active.
How do I verify Sandstone Environmental Engineering INC's contractor license?
You can verify Sandstone Environmental Engineering INC's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=878348.
- License issuedMay 24, 2006
- Bond activeJul 27, 2024
- WC coverage startsJul 26, 2025
- WC expiredJul 26, 2026
- License expiredJul 31, 2026
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