Adjust your door so that it fits appropriately with the jamb. You may have to unscrew the stationary door from its frame and then lift the roller door out and lay it down. Level the tracks and repair all the dents and dips for a smoother roll. Align the locking mechanism of the door with the frames, so that they fit properly. Replace old locks where necessary with newer, more secure ones. Replace the old rollers with new heavy-duty rollers, each one upgraded with fully sealed steel bearings, ensuring a smooth roll every time. Inspect the top and bottom tracks for dips, scrapes, and other problems.