How To Replace French Door Sill

Remove the screws holding the metal threshold in place.

How to replace french door sill.

Then use a variable speed screwdriver to unscrew the old door sill. Cut the rotten door sill into pieces using an oscillating tool or circular saw. How to fix a french door sill leak. To remove and replace a door sill.

The sill is beveled on one side to drain water away from the house. French doors consist of pairs of doors fitted with large areas of glass to allow light and outdoor views into the home. If the threshold is rotted the sill probably is too. Most exterior thresholds also have a sill beneath them.

If your threshold is in rough shape replace it. The new threshold should have a similar profile to your old threshold and be 1 to 2 inches longer than the length of the doorway so that you can cut it for an exact fit. Without proper sealing french doors. Thresholds come in wood and metal both of which come with a rubber gasket for sealing out the cold.

Short slide show video summary 2 min of how to replace a rotten wooden door sill. Use a utility knife to remove the old caulking and a pry bar to pull up the old sill. Carefully measure the doorway for the new threshold. I d have to demolish the entire threshold and install a new one.

It s not really total replacement. Remove the old door sill from beneath the door frame. Measure between the outside edges of the door casing. I wasn t going to tear out whole door but i was going to open a big ol can of worms beyond a simple 45 minute sill riser replacement.