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How to Fix a Bifold Doors Top Pivot Bifold doors can be an excellent option to create seamless transitions from outdoor to indoor spaces. Like any door with bifold doors, they may have problems. It is simple to fix bifolding doors. It is usually as simple as loosening the screw and then adjusting the height. Fixing the hinges Bifold doors can be a great way to open up a space and letting in more light. They typically fold back into the frame or the lintel in a doorway, but can also sl