Because even if one lock point fails other lock points will keep the door in place.
How to secure a sliding patio door from burglars.
One piece attaches to the door frame.
With your sliding door securely closed drill a hole through the frame of the door that slides and into the frame of the stationary door.
To prevent burglars from simply removing your door from the track add a security pin.
Some are hardware mounted while others are easy to install with pressure mounting for sliding doors traveling and apartments.
To prevent burglars entering by forcing the door frame make sure it s securely screwed or bolted to the walls around it.
A double bolt lock works as a secondary lock or can even work as the primary lock.
Most home improvement stores stock sturdy locks designed to increase sliding glass door security.
One piece attaches to the jamb the other to the door.
Install a double bolt lock.
Door security bars are often adjustable to fit the door s width perfectly.
It is a bar lock.
The latch locks on the door can easily be compromised so you want to make sure that the doors have a secondary level of security to deter burglars and offer up a good fight.
Then insert a hardened steel patio door pin to hold the two doors together.
This will prevent a burglar from opening the door by applying force.
When shut the piece on the frame nests inside the piece on the door.
Be careful not to drill all the way through.
The purpose of multi point locks is to secure the door at multiple points around the frame.
The other piece attaches to the sliding door.
But you don t have to stick with the factory installation.
A good way of doing this is to insert a bar into the tracks of the door to impede movement and prevent them from being opened.
Close your door all the way clean out the upper track on your sliding glass door position the lock in place and mark holes drill pilot holes and then secure the lock in place.
After you ve installed the top piece in the upper track you ll need to follow a similar process for the locking piece on the door itself.
Add a new locking system if the lock on your sliding glass door came straight from the factory it s probably not going to keep a burglar at bay.