Sliding doors are a security nightmare! Altic Lock Service highly recommends installing the CAL double-bolt lock on sliding doors. They provide protection against both prying and lifting the door out of its track.
Altic Lock Service now stocks and recommends the Door Devil ™ reinforcement package. See the Altic Lock Service website for a special limited time offer. This package includes a 4′ steel jamb reinforcement, door edge guard, and hinge jamb pins.