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Bifold Door Seal Replacement Due to their space-saving design and ease of access bifold doors are popular for garages, hangars and other industrial spaces. It is crucial to keep them sealed to ensure the sake of energy efficiency, cleanliness and a pleasant environment. Over time gaskets flatten and shrink or are damaged and this leads to water ingress, draughts and loss of heat. This is a quick and simple fix. Seals on the top As time passes the seals made of rubber on a bifo