Goodbye draughty walls,
hello cosy homes

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It couldn’t be easier to get a warmer home and smaller bills. How? With FREE cavity wall insulation from us.

Why do I need to insulate my walls?

If you have a cavity wall property, insulating your home is one of the most effective ways to make your home warmer and it could cut your annual heating bill.

How to check your home has cavity walls

If your house was built after the 1930s, it’s likely to have cavity walls. If you can see the brickwork on the outside of the house, look at the pattern of the bricks. If your home has cavity walls, the bricks will usually have a regular pattern and be the same size.

Are you a landlord? Click here.

Why Choose E.ON?

  • We’ll provide your cavity wall insulation free of cost (subject to home survey).
  • An expert team will install your insulation.
  • We offer a 25 year guarantee covering the insulation product, giving you peace of mind.
  • It’s quick and easy – the whole installation usually takes half a day.

Don’t Delay

  • You could save up to £275 per year on your annual energy bills.
  • Call us today on 0330 400 1083 or apply online.

Get a quote

Four easy steps to help you save money


Get a quote

Give us a call on 0330 400 1083 to speak to one of our team, or fill out our application form and we’ll give you a call back to check your details and book your free no-obligation home survey.


Your no-obligation home survey

One of our qualified surveyors will carry out a free home assessment and let you know how we can help you. It’s completely up to you if you want to go ahead.


Your installation

If you decide to go ahead, you can book an installation date that suits you. One of our expert engineers will install your insulation. Our professional team will leave your home clean and tidy.



You can enjoy your warmer and more energy efficient home.

Sound good?

Start the ball rolling today, online or on the phone.

Give us a call on

0330 400 1083*

to speak to one of our team.

Get a quote

Are you a landlord?

Did you know in 2018 new legislation is coming into effect and you’ll need to meet a certain EPC rating to rent your property?

Find out how we can make your rented property more energy efficient for you and your tenants.

Get in touch with our helpful Landlord Team

Call us on 0330 400 1122*

* Lines are open 8am to 8pm, Monday to Friday, and 10am to 6pm on Saturday. Calls from mobiles and landlines to 03 numbers are charged at your local rate, unless included in your call package when they’re free. Free cavity wall insulation is subject to survey. Energy Saving Trust: Savings information is provided from the Energy Saving Trust website.

What else we can do for you

Our boilers

Get an A rated boiler, and the spread cost through our finance, which could save you £210 per year

Find out more

Solid wall insulation

Fancy saving on energy bills and making your home look great at the same time?

Find out more

Loft insulation

Stop up to 25% of heat escaping through your roof with loft insulation.

Find out more