Cavity Wall Insulation

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Why insulate your walls?

Click for the next slide to find out more.

The question should be, 'why wouldn't you?'. There are lots of benefits to cavity wall insulation, not forgetting it's completely free!

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Cheaper Heating Bills

Up to

When you insulate your walls more heat is kept in your home for longer, meaning you don't have to crank up the heating as often and your heating bills go down!

of your heating is lost through uninsulated walls.

35%
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Reduce pollution, help The Earth
1,120kg

And that's just by insulating their cavity walls!

The most effective way for us to reduce CO2 emissions is for us to reduce the energy demand. Insulating your walls keeps more heat in your home for longer, reducing the amount you put on your heating therefore reducing the amount of CO2 your home produces.

of CO2 per year.

On average, a detached house can save

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Insulation is a good (and free!) investment. So why not go for it?

of people see it as a must-have

In fact

when looking to buy a new home. It can increase the property energy rating, and if you ever sell it becomes a great selling point.

Increase the value of your home

Cavity Wall Insulation is considered important to home buyers.

38%
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Insulating your Cavity Walls not only makes your home warmer, but also saves you cranking up the heating, reducing the costs of your heating bills! And you might not have to spend a penny to save money on your bills.

What is Cavity Wall Insulation?

If your house was built after the 1920s, it is likely to have cavity walls, whereas older houses are more likely to have solid walls. Cavity wall insulation fills the gap in between the walls and keeps the heat from escaping. The insulation is blown into the walls through drill holes on the external walls of the property by a machine. Once the insulation is in, we fill up the holes and if necessary paint over them.

What material do you use?


Provincial Seals CWI18 15/5257

GHE use the above named material to insulate properties which no insulation present. It is BBA approved meaning it’s gone through rigorous testing and GHE as installers are trained and monitored in accordance.

The material is a glass mineral wool fibre which is Class A1 fire rated (the best attainable!) meaning it is non-combustible. It’s also water resistant, durable, rot-proof and stable to remain effective as an insulant for the life of the building. This material is also CIGA approved meaning they will provide a 25 Year Independent Guarantee for properties fitted with this material by registered installers – which GHE are!

Knauf Supafil Carbonplus 13/4969

For properties that already have partial insulation we use the above named material. It is a different insulation however has all the same benefits as Provincial Seals CWI18 15/5257. It is still durable, rot-proof, water resistant and also has a Class A1 Fire Rating with the BBA and CIGA stamp of approval!

To see the BBA Certificates for both materials that we use, you can click the buttons to the right. These certificates show it is BBA Approved, rigorously tested and contains all the specifics you could want!

How much could I save?

The chart below shows how much your type of property could save in £/year.

These are estimated figures based on insulating a gas-heated home. The average installed cost is unsubsidised. Figures are based on fuel prices as of March 2016.

  • £/year
Cavity-Insulation-Diagram

Click here for more info and to see more figures on how much cavity wall insulation could save you.