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Solid Wall Insulation Grants

Solid Wall Insulation Grants are available to help with the cost of installing either External Wall or Internal Wall Insulation.

Solid Wall Insulation is typically installed in properties that do not have Cavity Walls and are therefore classed as hard-to treat. These include stone, concrete and pre-1924 brick-built homes.

If your property has Cavity Walls, the easiest and cheapest method of insulating them is to fill the cavity with an insulating material. Most properties built after 1982 had the cavity filled at the time of build. Prior to 1924, brick-built properties tended to be of solid construction.

The diagram below shows how to tell the difference between a brick-built Cavity Wall and a Solid Wall. Cavity walls do not have square brick ends showing and they are generally thicker than solid walls. A cavity wall will be at least 10 inches thick whereas solid walls are normally less than 10 inches thick. This can be measured around your window or door openings.

Solid Wall Insulation Grants
Another way to tell whether your property has a cavity is if the walls are at least 250mm (10″) thick. Properties that are built after 1982 should already have Cavity Wall Insulation, as building regulations changed to ensure it was fitted during construction.

Up to 45% of the heat lost in your home can be prevented by installing Solid Wall Insulation. There are two main types of Solid Wall Insulation to consider: External Wall or Internal Wall.

Click here if you are not sure what type of walls you have or if they are already insulated.

External Wall Insulation

Applying insulation to the exterior wall surface is currently the most popular form of Solid Wall Insulation. An insulating material is fixed to the outside walls and either render or cladding (including brick or stone tiles) is applied to form a decorative finish.

As the exterior appearance of the property will be changed, it is essential to check with your local Council whether planning permission is required before going ahead with this type of Solid Wall Insulation. Our approved installers can help you with this.

A grant of up to 25% is available for External Wall Insulation and we can organise a free survey and quotation.

Please see our External Wall Insulation page, for more information

Internal Wall Insulation

Solid Wall Insulation can be applied to the internal surface of the walls using either stud walls or insulation boards. Stud walls tend to be stronger and can hold the weight of cupboards etc. but they are generally thicker than insulation boards.

100% grants are available if you receive a qualifying benefit. The property must have solid walls and be not be heated by mains gas. You will also need to own or privately rent the property.

Please see our Internal Wall Insulation page for more details.

Cavity Wall Insulation

Your home should not require Solid Wall Insulation if it has a Cavity or air gap between the two layers of brickwork. Properties built of brick between 1924 and 1982 were typically of Cavity Wall construction and this gap was not filled when the property was built.

Cavity Wall Insulation is the simplest and most effective way of insulating the walls of your home. 100% grants are currently available to private households.

Please see our Cavity Wall Insulation page for more information.


We were more than delighted with the service you provided. It was most efficient, effective and you kept us fully informed at all times. The personnel who visited our property to do the survey and carry out the work were a credit to your company.

- Gillian and Wesley Hand

Very helpful men came as promised and installed the loft insulation. Thank you very much.

- Mrs. G Owen

The insulation was installed quick and easily without fuss. A good job done.

- David Hodgson

I had my loft insulated and just wanted to say how happy I was with the service. It was great from start to finish, the girl who first spoke to me about it was very friendly and helpful, the fitters were very efficient and tidy, so big thank you to all concerned.

- Robert Anderson

A big thank you for the way you have helped and done my walls and loft the work was done at a very quick and high standard. With no mess at all so thank all your team for me please.

- Mr Hudson

Our wall cavity and loft insulation work has been carried out, well done and we are very pleased with all who helped us including yourselves. Thank you very much.

- A A Gale

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