Cavity wall insulation can cut your energy bills

More heat is lost through your walls than any other part of your home. Cavity wall insulation can help to instantly reduce heat loss by 40% - which means big savings off your energy bills, and a dramatic reduction in your carbon footprint.

However, not all houses can receive cavity wall insulation. As the name suggests, there needs to be cavity, or gap, between the two layers of brick which make up your outside wall. If your home was built between 1930 and 1995, you are most likely to be suitable. If it was built before this you are more likely to have solid walls, which are not suitable for this type of insulation.

Cavity wall insulation plugs the gap between the two layers of brick that make up your outer wall. Filling this gap with insulation makes it harder for heat to pass through the walls. The insulation is typically made from a material containing pockets of air, which prevents convection from occurring, and greatly reduces heat loss.

Wall insulation in your home can help to:

• Reduce your heating bills by up to 115 per year
  (source: Energy Saving Trust)

• Increase the value and saleability of your home

• Increase your energy rating

• Create a warmer and more comfortable environment for your family

• You can find insulation grants up to 100% towards the cost of the work.

Is my house suitable?

As a (very) general rule if your outside wall measures 30cm thick, then chances are you have a cavity wall. Anything less than this and its most than likely to be solid.

Around 50% of UK houses can receive wall insulation.

The best way of finding out for sure whether you can receive cavity wall insulation is to arrange a free survey. A local contractor will be able to tell you immediately whether your home can receive it.

Cavity wall insulation grants are available

Insulation grants are available now.

The easiest and quickest way to find out if you're eligible to receive one is to use our form on the right of this page.