Any hardware dealer can show you the kind of strip to use. Doors with decorative glass panels or windows are an easy mark. It takes only seconds to break the glass and unlock the door. If you do not want to replace the door, install a break-resistant plastic panel or decorative grill over the glass. Attach the grills with non-removable screws.
Most door hinges are on the inside, safe from a burglar's tools.
If hinges are on the outside, the hinge pins can be easily removed and the door taken out of the frame. To protect such doors, replace hinges with new ones with non-removable pins. Sliding glass doors Burglars look for sliding glass doors because they are easy to open. Several types of locks are made especially for these glass doors. The existing lock can be bolstered by placing a solid strip of wood in the track of the closed door.