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Bifold Door Seal Replacement It is crucial to keep the temperature control, energy efficiency, and the overall quality of the room by sealing bifold doors properly. Like any other door system they are susceptible to issues. Over time, the gasket seal can become flat and become brittle or harder and lose its ability to stop drafts. This can be easily corrected with this seal kit replacement. Frame Bifold doors let in a lot of light and let in more light to an area. They can al