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Bi Fold Door Repair - How to Fix Leaning Doors Without Removing the Hinges Bi-fold doors can be a elegant and practical way to connect your outdoor and indoor areas. Like all doors, they need to be maintained in a way that they function correctly. You can do this by cleaning and lubricating the mechanisms including your lock to ensure that they function smoothly. This will help prevent the problems that can cause them to break or become out of alignment. How to Fix a Leaning door If you