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Bifold Door Seal Repair Bifold doors connect doors with tracks that are concertinaed to open and close the space. Over time the doors can be prone to a variety of common issues that require expert assistance. Lack of regular servicing can cause your bifold doors to lock up, causing problems with the hardware and doors that are stuck. You can avoid this by lubricating your bifold doors at least every two weeks. that are degrading Since bifold doors are constantly exp