Replacing Interior Window Sill

Often caulk is used at corners and seams.

Replacing interior window sill. There is an excellent article posted at doityourself s forum for your reference click here for the how to install a new window sill without taking the window out article click here for the pdf version if the link is broken. Creating a custom windowsill. If your window is fairly new and are in good condition you may be able to replace your window sill without removing the window. Cut between the windowsill and trim to cut the caulk.

Depending on how the sill was. Use the rag and utility knife to clean away any debris left on the window frame. Cut underneath the windowsill along the. This old house general contractor tom silva shares some tricks of the trade for installing a new long lasting windowsill.

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. The first step is always the most worrisome right. See below for tools and a shoppin. Open the window.

Every window should be installed into the wall. How to repair the interior window sill and trim tools and materials. Tap the tip of a flat pry bar under the sill from the. We ended up replacing all four window sills along the front because we made them an inch.

Insert the tip of a utility knife between the sill and the trim. How to replace an interior window sill. Slide a wide putty knife between the wall and the trim under the windowsill.