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Bifold Door Seal Replacement Due to their space-saving design and easy access Bifold doors are a popular choice for hangars, garages, and other industrial spaces. Keeping them sealed properly is crucial to ensure energy efficiency and hygiene, as well as a pleasant indoor space. Gaskets can become flat, shrink or even break over time. This can cause water ingress and draughts as well as heat loss. This is a simple and quick fix. Seals on the top Rubber seals on bifold doors can become fla