How To Replace Window Sill Inside The House

This old house general contractor tom silva shares some tricks of the trade for installing a new long lasting windowsill.

How to replace window sill inside the house.

In this video i help out one of my subscribers and give you step by step instructions to repair a water damaged window sill. Not difficult to do and only ta. It can cause it to rot warp or crack. Window sills take a beating from the weather and sun but you can repair a window rather tha.

Learn how to replace a rotted window sill with a lasting repair. Keep the sill in one piece so you can use it as a model when cutting the new sill. We pulled out the rest of the nails that were left behind. Nail a finish nail 1 2 inch from the inside window casing on each side.

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. Cut through the house siding directly below the sill with the multi tool. Nail finish nails at each back corner and along the back every 12 inches. See below for tools and a shoppin.

Use an oscillating multi tool to cut through the nails holding the stool to the sill. Use the crow bar or chisel to slowly pry the windowsill off the window. Re install trims on the sides of the window and under the sill. Window sill damage is common.

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. Tap the new sill into place using a rubber mallet. Sink your nails with a nail set. How to replace an interior window sill.