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Bifold Door Seal Repair Bifold doors connect doors with tracks that are concertinaed to open and close the space. In time, these doors may be prone to a variety of common issues that require expert assistance. Inadequate maintenance can cause your bifold doors to lock up, which can lead to issues with the hardware as well as stuck doors. To prevent this from occurring it is recommended that you keep your bifold doors lubricated every couple of weeks. Seals that are deteriorating Since bifold