From swing door locks and sliding devices to hinges, door pulls and stops, food pass/cuff ports, door position switches, and door closers, Cornerstone supplies and installs the full range of detention hardware for jails, prisons, and secure facilities nationwide. We provide mechanical, electro-mechanical, and pneumatic locking hardware — including retrofit solutions like the industry-exclusive Airteq Defender — plus keys and cylinders for openings of every kind. Our trained, certified technicians are licensed to service all major detention hardware brands and have been doing so since 1998, so whether you are specifying detention hardware for new construction, a renovation, or replacement parts for aging equipment, Cornerstone brings the accurate engineering and expert installation that have made us the leading detention equipment contractor in the U.S. and worldwide.