Sliding glass doors are important because they allow sunlight to enter as they also keep out intruders out. Some of the ways to easily repair the sliding glass door rollers include removing the roller door from the doorframe. The process of removing the frame will depend on its design. The door is then laid down. The rollers are then unscrewed and removed on the glass door. The removed roller can then be taken to a local hardware shop and a replacement purchased. The new rollers are then screwed back in their places. The original rollers should always be used for comparison while purchasing the new rollers to be replaced.