The most common reasons your sliding patio door is sticking is because it s either full of debris think crumbs pet hair bugs dust and dirt or it s time for new rollers.
Stick for sliding glass door.
Here are the basic steps.
First slide open the door completely and remove the head stop.
Then lift the door up and out of the track laying it down carefully across two sawhorses.
I could easily blame the previous owner for letting it rust but over the years it became gummed up with dirt sludge dog hair and even the occasional spider web.
Every time i d let charlie out into the yard the door would stick.
Never leave the glass door unattended.
If your sliding glass door sticks it may need a little maintenance.
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Remove the sliding door.
Inspect the rollers and replace them if damaged.
Use hot soapy water and a brush to clean the tracks.
Sliding doors are very heavy very breakable and very expensive this is a two person job.