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How to Fix a Bifold Doors Top Pivot Bifold doors are a fantastic option to create seamless transitions between indoor and outdoor spaces. Like any door, bifold doors can have problems. It is simple to fix bifolding doors. It is usually as simple as loosening a screw and altering the height. Fixing the hinges Bifold doors are a great way to open up a space and let more light. They can be opened to either side or folded back into frames. One reason these doors are popular is their flexibility