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Cornerstone General Construction: CSLB License #864572
Source: CSLB public data · Updated November 1, 2026 · CSLB's record
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The license is active with no suspension on record, though classifications, bonds and secondary flags still deserve a look.
License details
- License number
- 864572
- Primary status
- CLEAR · what this means
- Business type
- Sole Owner
- Issued
- September 21, 2005 (21 years)
- Expires
- September 30, 2027
- Classifications
- B General Building Contractor
C-10 Electrical Contractor
C-43 Sheet Metal Contractor - Location
- Pittsburg, 94565
- Phone
- (925) 759-0904
This is a sole-owner license, so we show only the city and ZIP code.
Workers' compensation
- Type
- Exempt
- Effective
- September 14, 2025
Confirm coverage with CSLB's insurer search. How to check workers' comp.
Contractor's bond
- Surety
- Jet Insurance Company
- Bond number
- BX0082843
- Amount
- $25,000
- Effective
- March 18, 2026
Status history
No changes recorded since we began tracking this license on November 1, 2026. We compare every weekly CSLB file and log changes to status, bonds, workers' comp and classifications here.
Related
- Licensed general contractors in Pittsburg
- Licensed electricians in Pittsburg
- Licensed contractors in Pittsburg
- Contractors in Contra Costa County
- What "CLEAR" means
- How to check a contractor license
Data: CSLB Public Data Portal, file dated November 1, 2026. Status can change at any time. Verify on CSLB's Instant License Check. This site is not a consumer reporting agency under the FCRA; don't use it for employment, credit, insurance or housing decisions about an individual.