CORNERSTONE IS THE LEADING SECURITY CONTRACTOR, MANUFACTURER, & SUPPLIER IN THE WORLD.
Cornerstone is the one-source, security solutions provider for design, construction, and maintenance.
Let us assist with every stage of your facility.

Cornerstone provides ongoing maintenance and support to extend the life and security of your facility.
We are certified to service all major detention hardware brands. Our maintenance service is unusual in that we provide our customers with regional service offices as well as an emergency contact telephone number for 24/7/365 support.
Learn MoreJail & Prison Construction
Cornerstone Construction specializes in the design, manufacturing, distribution and installation of institutional detention equipment and products. We understand detention facilities have unique requirements and complexities. We are committed to delivering safe, secure and functional products to our clients.
Security Electronics Integration
We offer after warranty, service and maintenance contracts.

We provide on-site, comprehensive operational and maintenance training of facility personnel.
Our project management staff is intensely involved through all stages of system development, from design fabrication, installation, troubleshooting, and commissioning and on through turnover and into warranty.