Installing exterior French doors requires the sealing, framing and fitting of each door to ensure a draught and problem-free installation. We talk you through the steps in this informative blog post. The installation of external French doors takes time and patience to ensure that the door is properly hung and sealed with no gaps or potential security problems. It typically takes between two and three hours to install exterior French doors if two people work together and have a level of experience. Before you start to install your French doors, make sure to remove any protection foil that was added to prevent damage to the frame during transport. Remove the foil from the exterior section now and leave the foil on remaining aluminium, uPVC or wood surfaces to protect them during installation. You will need to install the handle by mounting it. Use a screwdriver to remove the security pin — pull down to release it — and lift the leaf out of its hinges before setting it aside.