A simple epoxy repair will do the trick if the rot is confined to a small area but if more than 10 percent of the sill is rotten the old sill should be cut off and replaced.
Rotten window sill replacement cost uk.
This can be equally as effective and aesthetically pleasing as a full replacement.
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.
This old house general contractor tom silva shares some tricks of the trade for installing a new long lasting windowsill.
See below for tools and a shoppin.
Wood filler and a hardener can restore the sill to its original strength and reliability.
It costs less than a piece of.
This should not cost a fortune.
Depending on how badly rotted the wood is you may want to repair it rather than replace the sill.
If the rot has reached the joints with the jambs the sides then you have a much bigger problem which may lead to replacing the window.
If your sill is rotting or falling apart replace it with these simple steps.
How much does it cost to repair a window.
For this project i used a solid piece of kleer cellular pvc sill that matches the profile and thickness of the other sills on the house.
Although this varies vastly depending on the condition and size of the windows as well as the complexity of the work necessary expect to pay around 500 per window on a straightforward renovation with replaced cords weights and locks plus draught proofing.
Wooden sills have a tough time standing up to the elements year in and year out.
If the rot is confined to the outer edge of the sill then it may be possible to saw off the bad wood or remove it with a router and glue screw in a new piece.