Spotlight is on insulation this Energy Saving WeekRoof and walls responsible for 59% of heat loss

27 October 2010

EST Energy Saving Week 2010

It's Energy Saving Week and the focus is firmly on insulation, which can half the heat lost from an average home.

In a bid to help consumers take control of their energy bills, money and energy consumption, the Energy Saving Trust (EST) today puts the spotlight on home insulation.

Around half of the heat lost from an average home disappears through the walls and loft, so loft and cavity wall insulation are the most effective ways of keeping heat in as it tries to escape into the cooler air outside.

Cavity wall insulation

Cavity wall insulation could save you around £110 a year on your energy bills, meaning it pays for itself in around two years. Have a look at our how to buy wall insulation guide for advice on the different types of wall insulation available, as well as details of the savings you should expect to make.

Loft insulation

Insulating your loft could cut around £145 off your annual energy bill if you currently have no insulation. If you insulate your loft to the recommended depth of 270mm, it would pay for itself in around six years. For expert advice on choosing the best loft insulation for your home, have a look at our how to buy loft insulation guide.

The warmth lost from uninsulated homes in the UK would be enough to heat over 1.6 million homes for a year, so it's worth looking at all the options available.

Solid wall insulation

While cavity wall insulation is effective, over a third of UK homes have solid walls that could not be insulated this way. 

Internal and external solid wall insulation - which could knock £375 off your energy bills each year - reduce the heat lost through solid walls. Have a look at our solid wall insulation guide for a breakdown of which would be most suitable for your home, whether you're on a budget or need other repair work done on your walls.

Help with costs

All of these improvements will pay for themselves as your energy efficiency improves and heating bills drop - but there is help at hand if you're not in a position to pay the full upfront cost of the work. For advice on cheaper insulation available through energy suppliers such as British Gas, Npower and EDF, have a look at our energy grants advice guide.

Alternatively, small changes can make a big difference without costing the earth. Draught proofing stops air escaping from doors and windows and can be installed by any keen DIY-er. Have a look at our 10 tips that could help keep your heating bills down in our ways to save on heating guide.

Lower your gas and electricity bills

You can compare energy prices and switch to a new gas and electricity supplier on Which? Switch. People who switched with us between 1 October and 31 December 2013 are predicted to save an average of £234 a year on their bills.

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