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Bifold Door Seal Replacement Due to their space-saving design and quick access bifold doors are popular for garages, hangars and other industrial spaces. It is essential to seal them to ensure energy efficiency, cleanliness and a comfortable space. Gaskets can shrink, flatten, or become damaged over time. This causes water ingress and draughts as well as heat loss. Thankfully, fixing this is easy and quick. Seals on the Top The seals on bifold doors made of rubber can be slackened or dama