Cornerstone Construction Service Inc

Upland, California 91786

Active

85/100

Excellent

Trust Score

License Details

License Number: 980455
State: CA
Type: B
Class: B
Issued: Jan 17, 2013
Expires: Jan 31, 2027
Trade: General Contractor

Bond & Insurance

Bond Amount: $25,000
Bond Status: Active
Workers' Comp: N/A

Contact

Phone: (909) 985-6766

Data from CSLB. Last verified: May 9, 2026.

Related

All General Contractors Contractors in Upland All California contractors California map