Depending on how rotted your window sill is it may be an easy or more difficult job.
Fix window sill rot.
Put the new window sill in place and hold it in place with two finish nails.
Before working on the sill seal off the house interior from dust.
Most likely you will have to.
Fix a rotted windowsill and help prevent a relapse.
Start refitting the trim putting it back in the reverse order to which you removed it.
Most sills are designed with a few degrees of downward slope to help them shed water.
Once you ve retrieved all your parts it s time to start putting everything back together.
Step 2 removing the window sill.
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.
Set the depth of the router bit to create a stepped patch to fit into the window sill.
These are your first steps before you can remove the window sill.
Surround the damaged area with wood strips to serve as a router guide.
The casing comes off to clear the way for removing the old sill.
If the casings are rotting as.
Make a plumb cut flush with the sheathing along the length of the rotten sill.
A circular saw with.
How to repair a rotted windowsill remove the side casings.