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Save on Bills With Solid Wall Insulation Grants

External Wall Insulation

Also known as Solid Wall Insulation, is fixed to the outside walls of your home and covered in a special type of render.


Houses built before the 1920’s usually have solid walls instead of cavity walls and therefore hugely benefit from installing External Wall Insulation.

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The Facts & Stats

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Solid Wall Insulation

Our professional installation service transforms properties by creating a complete thermal envelope, delivering average annual savings of £350-£600 on energy bills while significantly reducing carbon emissions

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Our installations have consistently demonstrated up to 95% reduction in thermal bridging, while also addressing common issues like condensation and damp by creating an effective moisture barrier.

What To Expect

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Cavity Wall Insulation FAQ’s

  • Solid wall insulation, also known as external wall insulation, is applied to the outside walls of a home and covered with a special render. It is particularly beneficial for homes built before the 1920s that have solid walls instead of cavity walls. This type of insulation helps improve energy efficiency, reduce fuel bills, and address issues like dampness.

  • You likely have a solid wall property if your home was built before 1920, the walls are less than 260mm thick, and the brickwork resembles certain types of construction.

  • The cost of installing solid wall insulation varies based on the property's size and type and is usually quoted per square meter. There may be opportunities for up to 100% funding through eligibility criteria.

  • The installation typically takes between 1-2 weeks, depending on weather conditions. Scaffolding will be erected, and materials delivered to your home, which can cause some disruption. However, professional installers aim to minimize mess and disruption.

  • While solid wall insulation can help prevent dampness by raising the temperature of internal walls, it may not resolve existing damp issues. Proper ventilation and consultation with experts are recommended to address specific damp problems.

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