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Bi Fold Door Repairs If the hardware is damaged, it can cause problems when operating bi-fold doors. The top hinges and bottom rollers are the most likely components that can be damaged and require repair or replacing. The track of the door can be blocked by dust and dirt and can cause it to stick. This can be a simple solution by clearing the dirt and cleaning. Fixing the hinges Bi-fold doors are able to open up an area in a stunning way. However, they do not have no problems. The hinges may become unbalanc