Fix Window Sill
Check the where the window sill meets the jamb.
Fix window sill. This old house general contractor tom silva shares some tricks of the trade for installing a new long lasting windowsill. Every window should be installed into the wall. If you had damaged siding behind the apron or sill you need to replace that too. Before working on the sill seal off the house interior from dust.
Open the window and see if there is sealant or caulk connecting the sill and jamb. The first step is always the most worrisome right. Rot that occurs deep inside of the sill is more difficult to repair. Measure the thickness and length of your sill and add it to your list.
A circular saw with. 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. Make a plumb cut flush with the sheathing along the length of the rotten sill. How to repair a rotted windowsill remove the side casings.
Fix any small or medium cracks in your concrete window sill with caulk. Many window sills including ours are 1 1 2 thick. How to repair the interior window sill and trim tools and materials. Use the rag and utility knife to clean away any debris left on the window frame.
Fit the narrow tip. If parts of the sill or caulk remain use. This makes replacement simple as the new sill can be cut from a standard 2 4 or 2 6. The casing comes off to clear the way for removing the old sill.
Remove as much concrete debris as possible. Small cracks or chipping paint on the window sill can be handled easily by scraping all loose paint and applying a high quality exterior paint in under 30 minutes assuming you have the tools and materials you want to include getting materials out and cleaning up. Rub the surface of any and all damaged areas with a stiff brush. Creating a custom windowsill.
Saw off the old sill. The window sill and jamb vertical frame pieces should be sealed together. Surround the damaged area with wood strips to serve as a router guide. We ended up replacing all four window sills along the front because we made them an inch.
If the casings are rotting as.