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Bifold Door Seal Repair Bifold doors are created by combining door panels and concertinaed tracks that open and close the space. As time passes, these doors may develop a few common problems that require assistance from a professional. Inadequate maintenance can cause your bifold doors to seize up, causing problems with the hardware and doors that are stuck. To prevent this from happening it is recommended to lubricate your bifold doors every few weeks. Deteriorating Seals The seals on bif