Q: My house was built in 1953. It was a ranch, until we enlarged it in 1996 to a Colonial. I just noticed that the sill in my original picture window has started to rot and the sills in the upstairs ...

Wet rot turns wood spongy – and it will soon spread, compromising the strength and security of the window. Therefore it's best to deal with it as soon as possible. Find all the rot first. Apart from ...

Rub them down with sandpaper, hacking out the rotten wood, then fill with a two-part epoxy resin, like Z-Poxy, about £11 per tube.