Ever wondered how to install a door closer that automatically closes a door? In this YouTube Short, I show you how to install a commercial hydraulic door closer, including mounting the closer, attaching the arm, and getting the door ready for smooth, controlled closing. Commercial door closers are commonly used on storefront glass doors, hollow metal steel doors, commercial wood doors, office entrances, schools, restaurants, and other commercial buildings. Whether youβre a contractor, handyman, Swipe or use β β to keep watching.