The repairing of the sliding patio door is always done when it is not operating as it is required. The problem mostly arises when the rollers are derailed. Therefore, the first step that is always taken when they are not operating as required is to check if they are properly fitted properly on the track. The following steps are followed while repairing the sliding patio door. The door is first removed from the track. The rollers are then checked after which the clean rollers are then reinstalled. The door can thereafter be reinstalled after the tracks have been cleaned. This will repair the sliding patio door when correctly followed.