Cornerstone Concrete & Construction Inc
Upland, California 91786
26/100
Poor
Trust Score
License Details
- License Number
- 868748
- State
- CA
- Type
- B
- Class
- B
- Issued
- Dec 5, 2005
- Expires
- Jul 1, 2011
- Trade
- General Contractor
Bond & Insurance
- Bond Amount
- $12,500
- Bond Status
- Active
- Workers' Comp
- N/A
Contact
- Phone
- (909) 985-6766
Data from CSLB. Last verified: May 9, 2026.
About Cornerstone Concrete & Construction Inc
Cornerstone Concrete & Construction Inc is a licensed general contractor based in Upland, California. This contractor's CA license (#868748) has a status of "Unknown" , issued 20 years ago. This contractor's Trust Score of 26/100 suggests potential concerns that warrant further investigation.
What does "Unknown" mean? A license that is not active may indicate the contractor has not renewed their license, has had it suspended, or has voluntarily let it lapse. Contractors without an active license may lack current bond and insurance coverage. Before hiring, verify whether they have restored their license to active status through the California CSLB.