I make new sliding patio screen doors in Newbury Park onsite. All screen repairs and screen replacements are custom and I only use all metal hardware parts for the actual frame. If you can’t slide your patio door screen across the track the way it should slide, then you might need a check up on the problem. Most issues happen with the frame being bent or rollers broken or missing. If that is the problem, call me for a free estimate, and to see samples of the material I sell.