External Wall Insulation: How much does it cost?
External Wall Insulation (EWI) often ranges from £8,000 to £22,000, according to the Energy Saving Trust. However, the price can be cheaper or more expensive. This depends on the amount of work, size of the house, and if grants are available in your location.
| Type of Property | Estimated Cost of External Wall insulation |
| Detached | £15,000 to £20,000 |
| Semi-detached | £8,000 to £10,000 |
| Terraced | £6,000 to £8,000 |
*Prices vary on the installer you choose.
The cost of EWI is usually more than Internal Wall Insulation and is often applied without disruption to the household. Another key benefit is it doesn’t reduce the floor area of your detached, semi-detached, or terraced house.
Is EWI Cost Effective?
Short and simply, yes. Installing external wall insulation will slash a typical detached household’s annual bill by around £455 a year. Energy savings will, however, depend on the type of your home.
Are grants available for external wall insulation?
Local authorities and energy providers may offer some assistance with the cost in the form of a grant. Grants are designed to help towards the cost of installing external wall insulation. Grants can cover part or the entire cost of the EWI project.
Contact us today to find out if there are grants available via your local authority. Or click the link to find out more about EWI grants.
We offer other forms of insulation too, including cavity wall insulation, roof insulation, rendering, and much more.
If you would like the ultimate energy saving home, contact us today to start saving money on your energy bills.