Solid Wall Insulation

Timber Preservation Experts

Solid walls are poor insulators. This not only costs homeowners money on increased energy bills, but it’s bad for the environment, too. If your home is constructed from solid walls (such as solid stone or brick), then solid wall insulation can help you to save energy and save money in the long term.Solid walls are poor insulators. This not only costs homeowners money on increased energy bills, but it’s bad for the environment, too. If your home is constructed from solid walls (such as solid stone or brick), then solid wall insulation can help you to save energy and save money in the long term.

Solid wall insulation can be installed in a number of ways. In its simplest form, an insulating material is installed inside or outside the house, before being covered in protective plastering or cladding.

Solid Wall Insulation Energy Savings

The primary goal of solid wall insulation is to create energy savings. Solid walls have no way to trap heat; cold pockets form in the solid brick or stone and energy is lost. They’re bad at insulating, and a tremendous amount of heat (and therefore energy) is lost through them annually.

Solid wall installation prevents energy loss by trapping heat. It costs money up front to have an entire home revamped with solid wall insulation, but remember that this is a long-term solution.

Over several years, the energy savings made on your electric or gas bills will outweigh the upfront cost. It’s a significant monetary investment, but remember that by saving energy, you’re lowering your carbon footprint, using fewer resources, and helping to make the world a greener, more sustainable place.

External vs. Internal Wall Insulation

As mentioned, solid wall insulation can be installed inside or outside the home, but only on walls that directly lead to the outside and through which energy is potentially lost.

Because it’s an investment, homeowners ordinarily choose to have either the external or internal walls insulated, rather than both sides of a solid wall. Even one layer of solid wall insulation is effective at preventing energy and heat loss, but there are advantages and disadvantages to having external or internal insulation fitted.

Internal insulation is often cheaper to fit, but it results in the size of your rooms shrinking, as an insulating material is installed inside. It’s quite disruptive, too, and your home will need to be redecorated. Materials don’t need to be waterproofed however, and they generally last much longer simply because they’re inside.

External insulation is less disruptive to your daily life, although to cover an entire house, scaffolding needs to be temporarily installed. It’s therefore more expensive, while the insulating materials need to be given extra layers of protection or cladding as they’re exposed to the outdoor environment.

How to Install Solid Wall Insulation

A professional should always carry out the installation of solid wall insulation. This ensures health and safety standards are met, and that the materials are installed in the most effective areas of the home.

Inside, insulating materials are placed behind a sheet of material, which can be repainted or plastered over. Outside, scaffolding helps the installers to place solid wall insulation around the building. It needs to be fixed firmly to the outside walls and covered in a protective layer.

How Much Does Solid Wall Insulation Cost?

Total costs for solid wall insulation vary. The overall cost of a project depends on the size of the home being insulated, the materials used, and the time taken for the work to be carried out.

On average, external walls cost £100 per square metre. Internal walls cost less than this. For a large home, you can expect to pay upwards of £20,000.

Is it worth insulating solid walls? Given the large expenditure, it can be a difficult decision to make. However, the long-term benefits certainly outweigh the short-term costs. You’ll save money over several years, and you’ll be doing your bit for the environment.

If you’re interested in a solid wall insulation survey, please contact our friendly team on 01422 472547  or fill in our online contact form. Our experienced specialists will be on hand, ready to offer expert advice tailored or to arrange a thorough survey of your home.




Complete the enquiry form below or call us directly to discuss your damp or timber problem. On this call, we will arrange to visit you and survey your property. There is a small fee for the site survey, which will be confirmed on the call. If you proceed with the full works, this fee is refundable against any further works carried out.



One of our qualified team will visit your property at an agreed time and date. We will assess the problem and determine the best solution. Once we understand the root cause of the problem we can creat a suitable plan to fix it. Following the site survey we will provide you with a written report and quotation.



Once you are happy for the works to proceed we will then arrange a convenient time and date with you to carry out the specialist works as per the quotation. Most specialist works are usually completed within a couple of days and involve minimal disruption. Our team will keep you fully up to date on the works progress during this time.

after care


In order for the guarantee to be activated all of the specialist works need to be signed off. A comprehensive checklist will be completed and signed off by both our team & yourself to make sure you are fully satisfied with the works. Following the sign off, where appropriate, the works can be fully guaranteed.


We have regional staff in Yorkshire, Teesside, and North East England.
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