Securing Sliding Patio Doors: Simple Fixes That Work

Sliding glass doors are convenient, but the latch that comes with most of them is light-duty. Many can be lifted off their track or pried open with little effort. The good news is that the fixes are inexpensive and quick.

Why sliders are a weak spot

• The factory latch is usually a small hook that holds the door against the frame, not a true deadbolt.
• Older doors can sometimes be lifted out of the track from outside when there is extra space above the panel.
• Patio doors are often at the back of the house, out of view of neighbors and the street.

Easy upgrades

1. Track bar or dowel. A bar or cut-to-length dowel laid in the bottom track stops the door from sliding open even if the latch is defeated.
2. Anti-lift blocks or screws. Screws or blocks installed in the top track reduce the gap so the panel cannot be lifted out.
3. Secondary lock. A pin lock or keyed patio door lock adds a second point that holds the panels together.
4. Replace a worn latch. If the handle no longer catches firmly, a replacement latch or mortise lock restores a solid close.

Daily habits

• Lock the slider and drop the bar in place every night, not just when you leave.
• Keep blinds or curtains closed when you are away so valuables are not on display.
• Check the door after cleaning the track; debris can stop a latch from seating fully.

Local help

Choice City Locksmith repairs door locks, installs new locks and rekeys homes in Fort Collins, Loveland, Greeley, Windsor, Wellington, Timnath, Severance and Berthoud.

Choice City Locksmith · 112 N Grant Ave, Fort Collins CO 80521 · (970) 803-1100 · Open 5 AM–9 PM daily

Written with AI assistance and reviewed for accuracy.