Cavity Wall Insulation

DHR’s insulation experts install cavity wall insulation with the minimum of disruption and ensure homes are completely undamaged.

If your home was built from 1920 onwards, the chances are that its external walls are made of two layers with a small gap or `cavity' between them. This means they are 'cavity walls'.

Insulating your cavity walls means filling that gap - with very good reason.

Cavity wall insulation is an effective way to save energy and money at home. A well insulated house keeps warmth exactly where you need it - indoors.

So, insulating your cavity walls will help you to heat your home more efficiently.

Cavity wall insulation can also help to reduce condensation inside the house if it is a problem on external walls.

Using less energy reduces carbon dioxide emissions (CO2): one of the biggest causes of climate change. You will also save money on your bills too.

How does cavity wall insulation work?

Heat will always flow from a warm area to a cold one. In winter, the colder it is outside, the faster heat from your home will escape into the surrounding air.

Cavity wall insulation slows down the rate at which it escapes keeping as much of it as possible inside your home for as long as possible.