How to repair a rotted wood windowsill

Rot on a wood window sill is practically inevitable. The rot is a natural process caused by exposure to moisture, weather and the elements.

Depending on the extent of the damage, a rotted window sill can be repaired. However, if the damage is extensive, it is best to replace the rotted window sill.

If your window sill has minor damage, not a whole lot of skill or tools is required to repair it.

If for example, the rot occurs in only a small area, you can fix it with some epoxy.

You will need a circular saw, a multi-tool, a flat pry bar, a hammer and a drill.

Once you scoop out the rotted parts with the drill, you can apply epoxy, sand it smooth and repaint the surface.

Repainting the surface gives a more uniform appearance to the entire window sill.

If you are unsure of the extent of the damage or proper methods of checking and repairing rotted wood window sill, it is best to consult professionals that specialize in the repair of wood window sills.

We are professional window sill repair and maintenance technicians. Contact us today to restore your window sill to pristine conditions.