If you want to reduce your carbon emissions and keep your energy bills low, installing insulation or draught-proofing will reduce heat loss.
There are many simple yet effective ways to insulate your home, which can significantly reduce heat loss while lowering your heating bills.
Even little fixes around the home can mount up to significant savings in your energy bills. Fitting your hot water cylinder with an insulating jacket will save you £40 a year in Great Britain (GB) and £45 in Northern Ireland (NI). You’ll also lower your annual carbon emissions by 160kg in GB and 230kg in NI.
Whether you’re looking for quick wins around your home or a professional to install insulation, our advice will help you keep your home cosy.
If your home is poorly insulated, you’re probably losing a lot of heat. This means you’ll need to keep your heating on for longer to maintain a comfortable temperature. This leads to higher energy bills and emits more CO2 depending on how you heat your home.
A typical uninsulated home loses about:
Improving insulation or draught-proofing means you home can keep more heat in and save money on your energy bills.
Here are our guides to different ways of insulating your home.
Here are other ways you can cut the amount of heat that escapes form your home.
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Last updated: 8 July 2025