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Improve your home's energy efficiency
Saving energy isn't just about making small changes to reduce your energy bills. Bigger changes to your home could help you use or waste less energy and save you money in the long run.
Double glazing
Upgrading windows and doors could improve your home's energy efficiency and help reduce noise too.
Energy-efficient glazing covers both double and triple glazing, but you could also look at secondary glazing or thicker curtains to help prevent heat escaping from older windows.
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Draught-proofing
Heat escaping through cracks, gaps and holes in your windows, doors or even a chimney could be cooling your home while you’re also spending money to heat it up.
Simple DIY measures, like applying sealant round old window frames or doors could help reduce draughts. Or you could get the help of a professional and benefit from their draught-proofing know-how.
Remember, some ventilation is necessary, to avoid problems like damp, so don’t block any air vents.
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Walls
Around one third of all the heat lost from a typical property escapes through the walls, according to Energy Saving Trust (2026).
Most UK properties have cavity walls, meaning there is a gap between the inner and outer wall. This gap is usually filled with, or can be filled with, insulation to help prevent heat loss. If your property has cavity walls, check that they are insulated. By insulating the cavity you will reduce heat loss. In general, houses built from the 1930s will have a cavity wall but a professional will confirm if this is the case for your property.
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Loft
Did you know that around a quarter of all heat lost from a property escapes through the roof? Most homes have some loft insulation, but it can often be made much more effective. Loft insulation is one of the easiest and cheapest ways to improve your EPC rating and save energy.
Increasing loft insulation from 120mm to at least 270mm can make a big difference in reducing heat loss and could lower your overall yearly energy use, according to Energy Saving Trust (2026). If your loft is easy to access and has no damp or condensation issues, you may be able to insulate it yourself. If you’re unsure, it’s best to check with a professional to make sure it’s fitted correctly.
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Insulate your home
Well insulated homes need less energy to heat up and stay warmer for longer. By reducing the amount of heat lost through the walls or roof, you could lower your energy bills too.
Plug in the power of solar
Solar panels capture the sun’s energy and convert it into electricity that you can use in your home. They could help reduce your electricity bills and provide a source of more sustainable energy.
What is a heat pump?
Heat pumps are a low-carbon alternative to traditional boilers. They're highly efficient and kinder to the planet. Learn more about how they work.
Energy saving ideas for your home
Making your home more energy efficient doesn’t have to be complicated. From quick wins to bigger improvements, there are plenty of ways to cut energy use and stay warm. Take a look at what you could do next.
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