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Lower your energy bills with insulation

Did you know you can save up to £930 per year on energy bills by installing cavity and loft insulation in your home?(1)

We work with trusted insulation installers who can help you install the insulation you need to make your home more energy efficient.

Why insulate your home through EDF?

A typical house with no insulation will lose 33% of heat through walls and 25% through the roof(2).

We've assisted over 113,000 households in achieving energy efficiency improvements in the past five years. We are dedicated to helping you reduce your energy consumption in the future through working with our certified local installers. Our goal is to help customers obtain the appropriate funding for insulation installations. This can be accomplished through our ECO4 scheme, which offers a bundle or recommended improvements by an installer, or through our Great British Insulation Scheme, which provides support for insulation installation costs.

What types of insulation do our installers offer?

You may need to upgrade your ventilation to get the best out of your insulation. Not only are they designed to get better quality air through your home, but they can also help prevent against damp, mould and filter out dust and other pollutants. Your installer will be able to advise.

thermal loft insulation roll

Loft insulation

from £1,008(3)professionally installed

Laid between the loft floor, loft insulation creates a barrier in your roof space to prevent heat from escaping. Loft insulation can last up to 42 years.

Save up to £445 on bills and prevent 25% of your heat loss through your roof(4)

Cavity wall insulation - Installing cavity wall insulation

Cavity wall insulation

from £2,208(3) professionally installed

If your home was built after the 1920s, it's likely to have cavity wall. Cavity walls are made of two layers with a gap or ‘cavity’ between them. Cavity wall insulation can last up to 42 years.

Save as much as £485 a year on heating bills by stopping 33% of heat loss(5)

Give your family the benefit of a healthier, warmer home

Why insulate your home?

Better health

Well-insulated homes are much better for your health

Prevent damp

Damp housing can cause mould and mildew

Future heating

Future proof your home! With new technology coming – be ready for anything!

Better for the planet

Wasting less energy to heat your home, means your carbon emissions will drop

What about solid wall insulation?

Homes built before the 1920s are likely to have solid walls. Solid walls are created from a single solid material such as brick, masonry or concrete.  Adding an extra external or internal layer provides insulation.

We currently don't offer solid wall installations. Our guide however helps you understand the benefits of solid wall insulation and tackle the most asked questions.

Home Insulation and energy-saving advice

partially insulated house showing heat loss

How insulation works

Find out how insulation can save you money, energy and CO2 emissions, and what different types of insulation there are out there and the materials used.

Conservatory Insulation: Use it All Year Round

Conservatories are often considered a room used in summer but with proper insulation, they could be used all year round.

floor insulation under concrete

A Complete Guide to Floor Insulation

Cold doesn't just come in through walls, doors and windows, it can come up through the floor too. Insulation can prevent this, make the floor more comfortable to walk on and prevent mould.

A smart meter can help you save

We're here to help you track your energy usage with a smart meter – see where you can save, as well as lower your carbon footprint. Upgrade your meter at no extra cost and receive more accurate bills. With a smart meter, you'll also benefit from;

  • Being in control - see how much energy you're using
  • Once installed, sign up for our free Energy Hub(6) to give you more insight into your energy patterns
  • If you use cards or keys, you can top up online