external wall insulation

External wall insulation (ewi) improves home’s energy performance while vastly improving internal comfort. EWI is designed for solid wall properties that have no cavity. The system adds an insulation layer to the exterior of the property to reduce heat loss. it is covered with a waterproof render or cladding layer. This keeps properties warm in the winter, reducing bills and cooler in the summer.  

  • A metal gate is secured with a chain and padlock, with the padlock engraved with the brand name 'Schlage'.

    Protection

    Provides an extra protective layer against weather damage, safeguarding your property from damp and temperature extremes.  

  • Colorful row of houses with different colors and roof styles, wooden fence in front, person walking along sidewalk, blue sky above.

    Home appearance

    Transform the appearance of your home, with a choice of decorative finishes to refresh its exterior.  

  • An aerial view of a forested area with a dirt path running through the middle, with the left side densely filled with tall trees and the right side having fewer bushes and more open grassy space.

    reduce Carbon emissions

    Reduce carbon emissions, contributing to a greener environment.  

  • A man in a dark suit holding a small model of a house with both hands at a desk, with a notepad, pen, and a calculator in front of him, in an indoor setting with a plant in the background.

    Property Value

    external wall insulation increases property value while cutting heating costs.

  • Close-up of yellow and green front doors with house numbers 31 and 33, mailbox slots, door handles, and peepholes.

    external wall insulation enhances your home’s appearance with a fresh, modern finish. Plus, it boosts your property value, reduces carbon emissions, and contributes to a greener future—all while making your home more energy-efficient and sustainable.

Exterior wall of a building under renovation showing insulation boards and scaffolding.

Learn More

  • Beyond practicality, external wall insulation enhances your home’s appearance with a fresh, modern finish. Plus, it boosts your property value, reduces carbon emissions, and contributes to a greener future—all while making your home more energy-efficient and sustainable. 

  • External wall insulation offers multiple benefits, making it an excellent investment for your home. By adding a protective insulating layer to your property, it dramatically reduces heat loss, helping you save on energy bills while keeping your home warm and comfortable in winter. It also protects your walls from weather damage, reducing the risk of damp and extending the lifespan of your property. 

  • At Edge Energy Performance Company, we offer two high-performance external wall insulation systems: woodfibre and mineral wool, each with distinct benefits to suit different needs. 

 FAQs

  • Homes built before the 1920s usually have solid walls, identifiable by alternating brick patterns or walls less than 260mm thick. 

  • External wall insulation can reduce heat loss by up to 45%, significantly lowering energy bills and improving comfort. 

  • The installation typically takes 2–4 weeks, depending on the size and complexity of your property. 

  • In most cases, planning permission is not required unless your property is in a conservation area or a listed building. 

contact us

Interested in cutting your energy bills with loft insulation? Contact us for a free, no obligation consultation and quote. We’ll guide you through the process from assessment to installation. We’ll also check if you have any grant entitlements whilst we’re at it.

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