If the problem is with the door you might be able to adjust the height of the wheels that roll in the track which is controlled by adjustment screws.
Make a sliding door slide easier.
A lot of people strip the screw out while trying to adjust these with the weight on the rollers.
Many folks will recommend you use wd 40.
First all you need to do is simply give the sliding door track a good scrubbing.
These are easier to adjust if you can lift the door up a little to reduce the weight of the door on the rollers.
Be sure to brush down both sides of the track as well as help scrub out the dirt that exists in the middle move the door along the track to expose the front scrub move the door back to the closed position scrub and so on.
Using something like the above to make your patio door slide easier might actually be counter productive.
You should only use a silicone based lubricant.
The track acts as a guide for.
When i was at my parents last weekend their sliding patio door opened and shut so easily it made me jealous.
Most sliding doors have a mechanism called an adjusting screw located at the bottom of the door ends.
Determine exactly where the door is sticking before deciding on a remedy.
Turning this screw raises or lowers the roller.
If the door becomes even harder to open turn the screw in the opposite direction.
If the edge of the door is hitting the frame try tightening the screws on the top middle or bottom hinge on both the door frame and the door being careful not to over tighten and strip the screws.
You can easily adjust the door with a regular phillips head screw driver.
Clean the sliding glass door track step 1.
Whatever your cleaning approach first make sure that the track is clean and dry before you move on to applying a lubricant to help the door slide better.
Ours is difficult to open not smooth at all.
So then how should you lubricate a sliding glass door.
A silicone based product will help the door glide without attracting dirt and grime like standard oil lubricants will.
The adjustment screw is usually above that screw.
Give the screw a clockwise turn and test to see whether the door slides easier.
Once you know that the track is free of debris and dirt then you are ready to begin applying a lubricant to the sliding door track.
Clean the sliding glass door track standard sliding glass doors all have tracks.
Lubricate the sliding glass door track use wd 40 or a silicone based lubricant and spray the entire track.