CORNERSTONE ENVIRONMENTAL CONTRACTORS INC
License #722253·Corporation·CONCORD, Contra Costa County
Summary
CORNERSTONE ENVIRONMENTAL CONTRACTORS INC operating as a corporation is licensed in California under CSLB number 722253. The license was first issued in 1996, putting the business at 30 years on the active CSLB roster. It carries 3 CSLB classifications: A General Engineering Contractor, C-10 Electrical Contractor, and C-61/D-21 Machinery and Pumps Contractor. Records show an active surety bond on file with AMERICAN CONTRACTORS INDEMNITY COMPANY and active workers' compensation coverage from OAK RIVER INSURANCE COMPANY. The business is based in CONCORD, in Contra Costa County, California.
Business Information
License Details & Classifications
- License Number
- 722253
- Issued
- May 2, 1996
- Status
- CLEAR
- Expires
- May 31, 2026
- Entity
- Corporation
Financial & Insurance Coverage
Contractor Bond
- Surety
- AMERICAN CONTRACTORS INDEMNITY COMPANY
- Bond Number
- SC6300342
- Effective
- Jan 1, 2023
- Status
- Active
Workers' Compensation
- Coverage
- Workers' Compensation Insurance
- Carrier
- OAK RIVER INSURANCE COMPANY
- Policy Number
- COWC771447
- Effective
- Mar 29, 2026
- Expires
- Mar 29, 2027
License StatusActive
Contractor BondOn file
Workers' CompensationActive
Activity Timeline
- License issuedMay 2, 1996
- Bond activeJan 1, 2023
- WC coverage startsMar 29, 2026
- License expiresMay 31, 2026
- WC expiresMar 29, 2027