Why fit cavity wall insulation?
Cavity wall insulation is one of the most effective energy efficient improvements you could make to your home and can cut heating bills by over 30%. If your home was built between 1930 and the mid 1970s, it is very likely you have cavity walls. The external walls are made of two layers with a small cavity between them. By filling this cavity with an insulating material it stops heat escaping through the walls in the winter, and it will also keep homes cool in the summer by reducing the amount of heat that builds up. London Warm Zone’s approved contractors use specialist equipment to fill the wall cavity from outside the property; it only takes about half a day and causes no mess at all.
