Repairing Door Trim to Prevent Theft and Increase Security

Doors & Trim
8/4/2026
Author Igor Bykov
Learn how to fix loose door trim and add a security bar to a sliding glass door, boosting Florida home security without hiring a contractor.

Securing your sliding glass door may be as simple as fixing the trim and adding a block. With the right tools, you can repair the loose trim and raise the height of the door frame so it can't be pried open.

What tools and materials do I need to complete the installation?

To repair the trim, you will need the following:

utility knife screwdriver or drill finish-head screws that are at least 2 inches long construction adhesive high-quality caulk new trim that matches your existing style security bar or wooden dowel that can fit snugly into the bottom of the door track as a preventive measure.

Prepping will also require getting a measuring tape and safety glasses.

Why is securing the door important enough to attempt?

Research shows that about 60% of convicted burglars would abandon their efforts if a home appears well-protected. Couple that with the number of burglaries committed through windows and doors, and it's worth ensuring all doors and pulls are in decent shape! You will repair the area around the door and purchase a piece of lumber that best matches the entry path.

What the instructions are:

Fix damaged existing trim with points and clean the surface with adhesive. Seal and caulk the edges if damaged to prevent anyone from taking an easy advantage of poor insulation (and bad locking mechanisms) and trying to pry it open. Insert a jagged object that can support some weight in the door frame for maximum efficiency.