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Bi Fold Door Repairs If the hardware is damaged, it can cause problems when operating bi-fold doors. The hinges at the top and bottom rollers are the most likely components that are damaged and need servicing or replacement. Dirt and dust can also hinder the track of the door which can cause it to stick. It is simple to fix this problem by cleaning and removing the dirt. Fixing the hinges The bi-fold door is a great way to open up a space. However, they do not have no problems. One of the most common problems is