How To Replace Window Sill Inside The House

Learn how to replace a rotted window sill with a lasting repair.

How to replace window sill inside the house. Re install trims on the sides of the window and under the sill. Then we used a hammer and banged popped the sill upwards being careful to avoid any further damage. Window sills take a beating from the weather and sun but you can repair a window rather tha. You may also need to pry away trim material known as side casing.

Not difficult to do and only ta. Nail a finish nail 1 2 inch from the inside window casing on each side. Sink your nails with a nail set. Cut through the house siding directly below the sill with the multi tool.

In this video i help out one of my subscribers and give you step by step instructions to repair a water damaged window sill. Even if the window doesn t leak water condensation takes a toll on the sill. How to replace an interior window sill. Window sill damage is common.

Tap the new sill into place using a rubber mallet. First we ran a cutting blade this is my favorite caulk removing tool around all the edges including between the underneath trim and the window sill. Use the crow bar or chisel to slowly pry the windowsill off the window. It can cause it to rot warp or crack.

See below for tools and a shoppin. We pulled out the rest of the nails that were left behind. Use a utility knife and if necessary a hammer to carefully break and remove any caulking or sealant that s binding the old sill to the window frame. Keep the sill in one piece so you can use it as a model when cutting the new sill.