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How to Fix a Bifold Doors Top Pivot Bifold doors are a great method of creating seamless transitions between indoor and outdoor spaces. Like any door, bifold doors can have problems. Fortunately fixing a bifolding door is fairly easy and not invasive. It usually just involves loosening a screw and changing the height. Fixing the hinges Bifold doors are an excellent way to let in more light and let more light. They typically fold back into the frame or lintel of a doorway, howeve