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Bifold Door Seal Replacement Due to their space-saving design and ease of access, bifold doors are popular for hangars, garages and other industrial spaces. Maintaining them properly sealed is crucial to ensure energy efficiency and hygiene, as well as a pleasant indoor environment. Over time gaskets flatten, shrink or get damaged, which can cause leaks, draughts, and heat loss. Fortunately, fixing this is quick and easy. Seals on Top Rubber seals on bifold doors can become flat or damaged over time. This