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Bi Fold Door Repairs Bi fold doors can be challenging to operate if the hardware is damaged. The top hinges, and bottom rollers are the most commonly damaged components that require servicing or replaced. The track for the door can be blocked by dust and dirt and can cause it to stick. It is easy to solve this issue by cleaning and taking out the dirt. Fixing the hinges Bi-fold doors can open up a room in a beautiful way. They are not without their difficulties. The hinges can become incorrectly aligned