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Bi Fold Door Repairs If the hardware is damaged, it may make it difficult to operate bi-fold doors. The top hinges and bottom rollers are the most common components that are damaged and require maintenance or replacing. Dirt and dust can also block the door track which can cause it to stick. This can be a simple fix by removing the dirt and cleaning. Fixing the hinges Bi-fold doors can open up an area in a stunning way. They are not without their challenges. The hinges can b