Fix Window Sill Rot
Depending on how rotted your window sill is it may be an easy or more difficult job.
Fix window sill rot. These are your first steps before you can remove the window sill. Set the depth of the router bit to create a stepped patch to fit into the window sill. Start refitting the trim putting it back in the reverse order to which you removed it. Saw off the old sill.
Put the new window sill in place and hold it in place with two finish nails. How to replace exterior rotted wood window sill step 1 getting started. Rot that occurs deep inside of the sill is more difficult to repair. Fix a rotted windowsill and help prevent a relapse.
Most sills are designed with a few degrees of downward slope to help them shed water. First cut the angle on your sill. Before working on the sill seal off the house interior from dust. Make a plumb cut flush with the sheathing along the length of the rotten sill.
Most likely you will have to. Step 2 removing the window sill. How to repair a rotted windowsill remove the side casings. If the casings are rotting as.
Surround the damaged area with wood strips to serve as a router guide. Just use a couple of nails to hold each part in until you re certain the fit is good.