Most properties built of brick after 1924 are likely to have a cavity between two layers of brick, or between brick and block that was not filled with insulation when the property was built.

After 1982, building regulations changed and required insulation to be fitted in the cavity at the time of build. Before 1924, properties were generally built without a cavity.

Comparison of solid wall to cavity wall

Most Installers use Cavity Insulation made from shredded mineral wool (glass fibre), that can reduce the amount of heat escaping from the walls by up to 35%.

Cavity Wall Insulation frequently asked questionss

How long does it take to install Cavity Wall Insulation?

An averaged size property will take around two to three hours.

Will I receive a guarantee?

​Yes. The Installer will apply for a 25 year guarantee through CIGA, the Cavity Insulation Guarantee Agency.

How can I tell if my walls are already filled with Cavity Wall Insulation?

If you look closely, especially under the windows, you may be able to see where holes have been drilled and filled with cement. These holes will normally be around the size of a 10p piece.

Are there any health risks from Cavity Wall Insulation?

​No. The Insulation is sealed within the walls. Glass fibre is also derived from sand which fits in with the natural brick and mortar fabric of the property.

​Imagine putting a tea cosy over the house you live in? That might seem like a silly idea but if we could do that, you would save 1/3 of your heat escaping out of your walls and a 1/4 up through your roof. The realistic alternative to a tea cosy is by ensuring that your home is properly insulated.