Bifold Door Seal Replacement Keeping bifold doors properly sealed is vital to maintain climate control, energy efficiency and the quality of the area. Like all door systems, they can have problems. Over time, the gasket seal may flatten and become brittle or harder, and reduce its ability to block drafts. https://bifolddoorrepair12212.isblog.net/20-best-tweets-of-all-time-bi-fold-door-repair-47926705