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Bi Fold Door Repairs Bi fold doors can be challenging to operate if the hardware is damaged. The hinges on the top and bottom rollers are the most common components that are damaged and require maintenance or replacement. The track for the door can become blocked by dust and dirt, resulting in it sticking. This is a simple fix by getting rid of the dirt and washing. Fixing the hinges Bi-fold doors are ideal for opening the space. They do not come without difficulties. The hinges