Insulation grants
Insulation helps keep your home feeling cosy as well as cutting your energy bills. But it’s pricey to install, so it’s worth finding out whether you qualify for a grant to help with the cost of installing insulation in your home.
Some energy companies offer free insulation or grants to help you make your home more energy efficient, owing to the government’s Energy Company Obligation (ECO) Scheme.
Even if your energy supplier doesn't, here’s how much you could save on your energy bills with insulation, according to the Energy Saving Trust*:
- Loft insulation (270mm): between £225 and £415 a year
- Floor insulation: between £50 and 135 a year
- Cavity wall insulation: between £125 and £455 a year.
How much you can save depends on the size and type of your home, and how energy efficient it is already.
Over time, insulation will pay for itself with the savings you make on your energy bills, so it’s worth doing. If you need help with the initial cost of installing insulation, read on to find out what assistance is available.
* Last updated based on October 2023 pricing.
Are insulation grants still available?
Free loft and cavity wall insulation, or grants towards it, are available from some energy suppliers as part of the Great British Insulation Scheme or the Energy Company Obligation (ECO) scheme. Find out more in our guide to Free insulation deals from energy suppliers.
If you receive certain benefits, you might be able to get a grant for insulation, or a new boiler, through the Affordable Warmth Scheme.
Check our advice or use the government's website to find ways to save energy in your home. You can also phone the government helpline on 0800 098 7950 (Monday to Friday 8am to 6pm, Saturday 9am to 12pm).
Find out more in our guide to the Cold Weather Payment, Winter Fuel Payment and Fuel Direct.
Paying for insulation
If you're not eligible for a grant, how you pay for insulation jobs will depend on your individual circumstances and the cost of the job.
You can do simple insulating jobs yourself relatively cheaply, such as draught proofing and loft insulation. Bigger jobs that need a professional installer can cost upwards from about £345 for cavity wall insulation in a flat to around £7,400 for internal solid wall insulation.
To find out the costs, savings and payback times for the various insulation jobs, see our individual guides to:
- loft insulation
- cavity-wall insulation
- solid-wall insulation
- floor insulation
- roof insulation
- draught proofing.
Paying for insulation with your credit card or mortgage
You can also pay for insulation using a 0% on purchases credit card and repaying it over the term of your credit card deal. Or you could also consider increasing your mortgage to pay for larger and more expensive home improvements.