Is cavity wall insulation for you?

Posted on Apr 26 2019 - 10:20am by Ella

When it comes to the proper insulation for your home, there are different options available. One particular option for homeowners is insulation in the cavity walls of the home, especially for houses that have been built after the 1920s, because this is when homes began to be constructed with a gap in between the outer walls and the inner walls. With the right cavity wall insulation, this gap can be filled, saving more energy and making the home’s temperature more comfortable.

How to determine if you need cavity wall insulation

cavuity wall

First, you need to know if your home can benefit from this. If you are not sure about whether you have a cavity between your outer and inner walls, there are ways to determine this:

  • If your house has brickwork on the outside walls, check out the bricks’ pattern. A home with cavity walls will normally have a pattern which is regular.
  • If your home has a solid wall without a cavity, the exterior brick pattern will be alternating where the bricks are laid at right angles to each other, with one showing its long side and the next showing its short side.
  • Another way you can tell if you have cavity walls is by measuring the wall’s width, especially if the brickwork is covered. For this, all you have to do is check out the external wall beside a door or window in your home and take measurements. If the wall is thicker than 260 millimetres, it may have a space or cavity in between.
  • If the wall is thinner than 260 millimetres, then it may be solid. If the cavity is equal to or more than 50 millimetres, then you can definitely benefit from cavity wall insulation.

What you can expect to spend on installation costs

The installation costs for cavity wall insulation varies according to the building. With a detached home, you may spend around 700+ on installation, while with a semi-detached home, the cost of installation can amount to approximately 475. Cavity wall insulation for a mid-terrace house can be around 370, and for a flat, the installation cost can run to 330. But the good news here is that you may actually get cavity wall insulation for free, according to energy experts npower. It therefore pays to find out if you qualify for government initiatives so you need not spend on installation costs for your cavity wall insulation.

Your expected savings with cavity wall insulation

The savings you can acquire with cavity wall insulation are a significant amount. As the insulation helps prevent heat loss in your home it means you will be running your heating setup more efficiently which can also decrease the chance it breaks down. Though your heating setup may require less maintenance, you should still get it serviced by or similar HVAC companies to ensure it runs at maximum efficiency.

The quantifiable amount of savings depends on the type of building you have. If you have a detached house, then your annual savings can amount to as much as 250. For a semi-detached house and a mid-terrace house, your savings can reach 145 and 95 a year, respectively. Bungalows can expect savings of up to 100, while a flat can save around 75 every year.

But your savings from cavity wall insulation does not only extend to your energy bill – it also extends to your carbon footprint as well. With cavity wall insulation, a detached house can save up to 1,040 kilograms of carbon dioxide each year. A mid-terrace house can save 395 kilograms of CO2, while a semi-detached house can save around 600 kilograms every year. Meanwhile, bungalows and flats can save up to 410 kilograms and 325 kilograms of CO2 each year as well.

Consulting with a professional energy specialist will help you further when you are thinking of installing cavity wall insulation for your home. With the right advice and recommendations, you can make the proper decisions regarding your home’s insulation needs.

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