How to remove all or part of a partially rotted wooden window sill under a wooden stool?

I am replacing much of a rotted window sill (in a Victorian built in 1910) The stool (wood over the sill) is fine, and ideally I'd want to extract the sill entirely and put in new wood. Before: https://preview.redd.it/jcaseycvn80f1.jpg?width=4160&format=pjpg&auto=webp&s=7f2ca82596107bebacef2f74b833e806aa8f7d9e https://preview.redd.it/lrfz5q6yn80f1.jpg?width=4160&format=pjpg&auto=webp&s=5c3335af4f3428dc164a4513bdcd6d75acaee12a I've substantially removed a little part of the sill on the left side and used an oscillating tool to loosen about 2" deep under the stool for about 8 inches, but the sill refuses to budge. https://preview.redd.it/gr1bpox7o80f1.jpg?width=4160&format=pjpg&auto=webp&s=9752f064651b2f5871c6fe07d565161ace42c001 https://preview.redd.it/l1ps2ejbo80f1.jpg?width=4160&format=pjpg&auto=webp&s=4b21475b3c08cdb12c3758525dca71c350e2a46a So I just plunge-cut the rest of the front of the sill off with an oscillating tool https://preview.redd.it/c7uj7onfo80f1.jpg?width=4160&format=pjpg&auto=webp&s=4492242fc0cfc4886147f93af7cac1ebb55b8f0f I drove in some screws in an effort to use a prybar to pull the sill out - to no avail. The only way I can see to extract the rest of the sill (so the right 90% looks like the 10% or so on the left) is by hacking away with an oscillating tool - very slow going. I'd be grateful for tips on how to remove the entire sill efficiently, or on how to plane or rout out say 1/2 inch deep of the remaining sill so I can partially slip some new wood under the stool for the repair. submitted by /u/citizentools [link] [comments]

May 12, 2025 - 00:48
 0
How to remove all or part of a partially rotted wooden window sill under a wooden stool?
How to remove all or part of a partially rotted wooden window sill under a wooden stool?

I am replacing much of a rotted window sill (in a Victorian built in 1910) The stool (wood over the sill) is fine, and ideally I'd want to extract the sill entirely and put in new wood.

Before:

https://preview.redd.it/jcaseycvn80f1.jpg?width=4160&format=pjpg&auto=webp&s=7f2ca82596107bebacef2f74b833e806aa8f7d9e

https://preview.redd.it/lrfz5q6yn80f1.jpg?width=4160&format=pjpg&auto=webp&s=5c3335af4f3428dc164a4513bdcd6d75acaee12a

I've substantially removed a little part of the sill on the left side and used an oscillating tool to loosen about 2" deep under the stool for about 8 inches, but the sill refuses to budge.

https://preview.redd.it/gr1bpox7o80f1.jpg?width=4160&format=pjpg&auto=webp&s=9752f064651b2f5871c6fe07d565161ace42c001

https://preview.redd.it/l1ps2ejbo80f1.jpg?width=4160&format=pjpg&auto=webp&s=4b21475b3c08cdb12c3758525dca71c350e2a46a

So I just plunge-cut the rest of the front of the sill off with an oscillating tool

https://preview.redd.it/c7uj7onfo80f1.jpg?width=4160&format=pjpg&auto=webp&s=4492242fc0cfc4886147f93af7cac1ebb55b8f0f

I drove in some screws in an effort to use a prybar to pull the sill out - to no avail.

The only way I can see to extract the rest of the sill (so the right 90% looks like the 10% or so on the left) is by hacking away with an oscillating tool - very slow going.

I'd be grateful for tips on how to remove the entire sill efficiently, or on how to plane or rout out say 1/2 inch deep of the remaining sill so I can partially slip some new wood under the stool for the repair.

submitted by /u/citizentools
[link] [comments]