Sliding glass door repairs are not as difficult as they sometimes seem. The biggest problem is with the lack of available information on how to perform repairs.
The most common sliding glass door repair is replacing the rollers. Rollers on sliding glass doors wear out through use and because of debris caught in the track. To repair the rollers perform the following steps.
Step 1 - Remove the Door
Remove the door from the track. This varies from door to door but typically involves lifting it up and off the track from the bottom. Some models use screws in the top rollers to hold the door in place. You should get help for this step.
Step 2 - Take off Rollers
Take the rollers off and take them to a local hardware store. Match them up with new rollers. However many you need for the door, double the number. This way if you break one or need another later, you won’t have to go again.
Step 3 - Clean
Clean the track thoroughly. Use a vacuum to suck up loose debris then spray WD-40 on the track and allow it to soak in. Use a pick to clean off the stuck-on debris and wipe clean. When you are finished the track should be spotless.
Step 4 - Install Rollers
Install the new rollers on the door and reattach the door to the frame.