Cavity Wall Insulation

Reduce your energy bills and save money the smart way

Keep your house warm and cosy by reducing heat loss

Be more eco-friendly by using less energy to keep your home warm

What is Cavity Wall Insulation?

Cavity wall insulation is a type of insulation that is added to the cavity inside your external walls. The insulation creates an additional barrier protecting your home from the cold in winter and keeping it cooler during periods of warmer weather. It is a way of limiting heat loss from your home.

At Magna Renewables we are experts in making your home more energy efficient and helping your reduce your energy bills. Whether it’s via renewable energy solutions such as solar panels or heat pumps, or improvements to your home such as insulation we can help you.

Cavity Wall Insulation
Cavity Wall Insulation

How does Cavity Wall Insulation work?

Properties constructed after 1920, were typically built with cavity walls which could benefit from cavity wall insulation. Insulation materials that prevent heat from escaping are used to fill these cavity wall spaces in your home.

To install the insulation, small holes are drilled into the external wall. Cavity wall insulation is then injected via the holes into the space between the two walls.

Once the insulation has been injected, the drill holes are covered leaving your home looking completely unchanged. The only difference is the core temperature of your home will remain warmer for longer. Insulation for cavity walls works to prevent heat from escaping from your property and to improve your home’s energy efficiency.

Is insulation right for me?

A poorly insulated home can mean that heat energy is being lost at a quicker rate. Without proper insulation more heat is required to maintain a comfortable temperature throughout your property. Increased energy usage will also result in higher heating bills.

If you feel that your home is not retaining heat as efficiently as it could, cavity wall insulation could be a good solution for you. It is right for you if your aim is to improve the energy efficiency of your home, keeping your rooms warmer for longer.

Magna Renewables can guide you through installing your cavity wall insulation today. Our insulation experts deliver top quality customer service with every installation. Our team can install your cavity wall insulation and leave everything exactly as they found it.

Cavity Wall Insulation

What are the benefits?


Reduce up to 30% heat loss through your flat roof.


Lower your heating bills and increase your home’s energy efficiency.


Prevent draughts and keep your home warm and comfortable.

Get a free, no obligation quote for your insulation today

Our team of experts is on hand to answer any questions you may have. If you are thinking of getting insulation for your home then call us and we will explain the entire process with you. We will give you a free, no obligation quote and give you the opportunity to ask us any questions you may have.