Replacing Interior Window Sill

Often caulk is used at corners and seams.

Replacing interior window sill.

If parts of the sill or caulk remain use. The first step is always the most worrisome right. How to replace an interior window sill. Open the window.

Use the rag and utility knife to clean away any debris left on the window frame. Creating a custom windowsill. Insert the tip of a putty knife behind the trim underneath on both sides in front at the back or wherever the trim is. Cut between the windowsill and trim to cut the caulk.

If your window is fairly new and are in good condition you may be able to replace your window sill without removing the window. 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. How to repair the interior window sill and trim tools and materials. We ended up replacing all four window sills along the front because we made them an inch.

Depending on how the sill was. Insert the tip of a utility knife between the sill and the trim. Cut underneath the windowsill along the. 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.

See below for tools and a shoppin. Slide a wide putty knife between the wall and the trim under the windowsill. Press the edge of the pry.