SLIDING PATIO DOOR WHEELS - If you sliding glass doors are hard to slide or move, most likely your wheels need to be replaced. We specialize in inspection of all wheels. If needed, wheels will be changed and adjusted. With a push of a finger, your sliding patio doors will roll free again.Repairs damaged and corroded patio door track. Allows patio door to roll smoothly and quietly. Simply remove door place track cover over old track, crimp ends or apply silicone to inside of track cover before installation. Most tracks are made of alluminum this snap track is made of stainless steel. All tracks are in 8 foot sections so if you have 16 foot section or multiple tracks, you would need multiple snap tracks. $45.00 service calls