Repair Window Sill With Epoxy

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.

Repair window sill with epoxy. How to repair a rotted windowsill remove the side casings. Keep the sill in one piece so you can use it as a model when cutting the new sill. Expose clean wood by opening up cracks and splits with a saber saw blade broken hack saw blade scratch awl or the. Remove as much concrete debris as possible.

The casing comes off to clear the way for removing the old sill. Bondo the same product used as auto body epoxy filler has been used by handymen for years to repair damaged wood. Make a plumb cut flush with the sheathing along the length of the rotten sill. Rub the surface of any and all damaged areas with a stiff brush.

The epoxy was designed for boatbuilding and repair and works great on windowsills columns and other areas where gluing filling and shaping are needed. A circular saw with. Hold a straightedge against the underside of the windowsill then strike off the epoxy with a putty knife to fill any remaining voids and create a perfectly straight line. You mix it like cookie dough mold it like modeling clay and when it hardens you carve and sand it just like wood.

If you have an older home and have had estimates for replacing old rotted out window and door sills you know how expensive it can be. How to repair a concrete window sill preparation. Use the putty knife that was trimmed with the aviation snips to shape the epoxy to match the original casing. Epoxy is easy to handle too.

We use the epoxy in two ways as glue and as filler. If the casings are rotting as. Wooden window repair remove all the paint in the affected areas. Excavate rotted material and remove all loose compromised or weathered wood fibers with a stiff hand held.

Saw off the old sill. You may also need to pry away trim material known as side casing. Epoxy is the perfect material to make permanent repairs of rotting window sills door jambs and exterior molding that are difficult to remove and expensive to replace. Use the crow bar or chisel to slowly pry the windowsill off the window.