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Bifold Door Seal Replacement Bifold doors are a favorite choice for hangars, garages and various industrial spaces due to their efficient use of space and swift access. Keeping them sealed properly is crucial for energy efficiency and hygiene, as well as a pleasant indoor space. Gaskets can become flat, shrink, or become damaged over time. This leads to water ingress and draughts, and heat loss. This is a simple and quick fix. Seals on the Top Rubber seals on bifold doors can flatten