Top tips for winter - Home Insulation

You’ve read all our top tips. Your boiler has been serviced and given a clean bill of health. You’ve bled your radiators. You’ve insulated your condensate pipe and you’ve checked your controls and heating programmes. So why is your house still cold?! It could all be down to your insulation (or lack of).

In an uninsulated home, over 30% of all the heat produced by your heating system is lost through the roof, ceiling and walls. But by doing some simple DIY, you can make a massive difference to your home, and in turn your energy bills. A few insulation types need professional help, and some may not be relevant for your home, but you can find out more below.


Almost half of the heat loss in uninsulated, British homes is because of uninsulated walls. One of the most common ways to reduce heat lost through walls is called Cavity wall insulation. The way newer homes are constructed leaves a small air gap between the exterior brick and the internal blocks, often called a cavity. This cavity can be filled by a professional using different insulating materials, the most common of which are Blown mineral wool, EPS beads or Polyurethane foam. Each has their advantages and disadvantages, and it pays to do your research to work out what’s best for your property.

Installation of Cavity wall insulation usually takes a couple of hours and consists of the installer drilling small holes into the exterior of the property, piping in the selected material, and filling the holes back in. The usual payback period is only a few years and there are often grants or schemes available to help reduce the cost. To find out more about cavity wall insulation and find an approved installer, click here to visit the National Insulation Association’s website.

By taking a few measures, either by yourself or by a professional, you can dramatically increase the comfort of your home, and save money on your energy bill at the same time.

Loft insulation

Second to your walls, your roof is the second biggest contributor to heat loss in your home. Luckily, you can make a big difference by installing some loft insulation. Generally, loft insulation comes in rolls as blanket insulation. Blanket insulation is often the easiest and cheapest option for loft insulation, especially for fitting between roof joists. You can get loft insulation from most good DIY shops, but be sure to follow any safety instructions on the packaging, especially any protective equipment (such as gloves or a breathing mask) needed. For more information on loft insulation, how to choose the best material and advice for fitting, visit the National Insulation Association’s website here.

Quick wins

Whilst there are some insulation jobs that need professional intervention, there are lots of ways to help insulate your home that you can do yourself, for a relatively low cost.

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