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Bifold Door Seal Repair Bifold doors integrate door panels into concertinaed tracks to open and close a space. In time, they can suffer from a number of common issues that require professional attention. Inadequate maintenance can cause your bifold door to jam which can lead to hardware issues and jammed doors. To prevent this from happening it is recommended to lubricate your bifold doors every few weeks. Seals that are becoming less durable Seals on bifold