In most houses built after the 1920s, the external walls are made of two layers with a small air gap or 'cavity' between them. If your home has unfilled cavity walls, a considerable slice of your energy bills will be spent heating the air outside. Filling the gap between the two walls of a house with an insulating material massively decreases the amount of heat which escapes through the walls. It will help create a more even temperature in your home, help prevent condensation on the walls and ceilings and can also reduce the amount of heat
How it is installed?
Cavity wall insulation is quick, clean and relatively inexpensive to install. It's injected into the cavity from the outside, taking between two and three hours in a three bedroom semi-detached house. It typically costs around £200, and with the savings you make on your heating bills, it can pay for itself in under 2 years.
What to do next?
Cavity wall insulation needs to be installed by a qualified installer, who should provide you with a 25 year government-backed guarantee. Follow this link to get us to organise you a free, no obligation home insulation survey by one of the UK's leading insulation companies which will cover cavity wall insulation
