The door panel to your sliding glass doors needs to be removed. Since they’re heavy and awkward to move alone, it’s probably best to get someone to help. Normally the operable panel will swing out on the inside of the sliding glass doors. If there is any overhang on the header you should remove the panel from the outside. Take a small screwdriver and engage the roller screw. Lower the sliding glass doors as much as possible before swinging the bottom out to remove the panel.

Now your way is clear to continue the sliding glass door repairs and locate the roller adjustment hole. Above that hole is where you will find the roller screw. Remove the screw and take the roller off the sliding glass doors. Take the old roller to the hardware store with you and it will be easy to match up with sliding door hardware. You’ll need to look for one that is as close to identical as you can find. If you’re not sure, ask a store employee to assist you. Buy two rollers to save yourself an extra trip later.

With your new rollers in tow, it’s time to install them. Put the new roller in place exactly where the old one was and screw it back together. Flip the door over and do the same thing on the other side. Your sliding glass door repair is nearly complete; at least the hard part is over. Really the hard part isn’t all that hard. All that’s left is to clean the track and put the sliding glass doors back in place.

Protect your carpet before you begin cleaning the track. It would be tragic to mar the beauty of your sliding glass doors with ruined carpet. Vacuum the track along the entire length of the sliding glass doors. Now that there’s nothing to impede your sliding glass doors, spray the track with WD-40 and give it a minute to soak in. Use this time to pick all the dead bugs and out of the very bottom of the track. Be sure you can see nothing but aluminum all the way across.

Putting the sliding glass doors back in place is just as easy as taking it out. Put the sliding glass doors in at the top first and swing the bottom into place on the track. Use a screwdriver to adjust the new rollers. Slide the door to a closed position and leave a ¼” gap on the top and bottom. Make sure the rollers are adjusted so the sliding glass doors stand parallel to the frame vertically. With this finished you have completed your sliding glass door repair.