How to replace a lock in a sliding patio door step 1.
How to change a sliding patio door lock.
Find the name of the manufacturer and model number on the sliding door and use this information to purchase a.
These are the parts used.
In this video we show you how to install a key lock set on an existing patio door handle.
How to change an old mortise lock handle patio door with new 2019 parts.
Key lock and housing product code.
Unscrew and remove the existing lock.
Slide the patio door all the way open.
Products used in this video.
You can do this by sliding it back but it is a good idea to keep it open with a large brick or one of those devices that holds a bike s wheel in place.
Open the door so that you can remove the old handle of your sliding door.