The cost of having a shower door professionally installed depends on three things: the door size, the type of glass, and the type of door. The price will include a professional team leveling and adjusting the doors, securing the door frame to the walls, caulking the edges of the frame, and cleaning the area. The national average price for a glass shower door is around $910. Still, homeowners will pay a small fraction more for the installation and labor costs. Expect to pay approximately $1,300.