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Tired of drafty walls and rising heating bills? No worries, Berks Insulation is your one-stop shop for transforming your home's energy efficiency with cavity wall insulation under the ECO4 scheme.
A cavity wall consists of two layers separated by a gap called the cavity. The outer layer is typically made of bricks, while the inner layer can be either bricks or concrete blocks. Houses built after the 1920s usually have this structure known as cavity walls, whereas older homes, predating the 1920s, are more likely to have solid walls—a single, thick layer made of bricks or stone. To identify your wall type, examine the external brickwork. Cavity walls display a uniform brick pattern with all bricks laid lengthways.
Many cavity walls are insulated from the outside by injecting materials. Specialists drill holes, insert insulation (commonly mineral wool or polystyrene beads), and seal them.
To insulate, a registered installer drills small holes of depth 18-25mm on the exterior walls. Using special equipment, they blow insulation into the cavity and fill the holes inconspicuously.
Filling cavity walls isn't a DIY task; hire a registered installer. The job takes about two hours for an average house with easily accessible walls, causing minimal disruption.
Installation costs vary by home size. Whether a spacious house or a compact flat, you can recoup costs within five years through annual energy bill savings.
Mitigate costs by coordinating work with other home improvements or focusing on specific areas rather than the entire house.
Ask a registered installer for this. They'll drill a small hole in your external wall to inspect whether the walls are hollow or filled.
Check with your local authority's building control department for information.
For houses with narrow or uneven cavities, exposed locations, or flood risks, polyurethane foam may be an option. It’s pricier but highly effective. A specialist foam insulation installer will assess and perform the work if suitable.
Precautions need to be taken by not applying insulation if you have damp patches on internal walls; resolve the issue first with a damp prevention specialist.
If your home’s exterior walls connect to another house, a cavity barrier will be inserted to prevent affecting your neighbours.
For flats, insulation typically requires agreement from everyone in the block; individual flat insulation is usually not feasible.
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Take the first step towards a more energy-efficient and comfortable home with Berks Insulation. Contact us today to schedule a consultation and explore the benefits of Cavity Wall Insulation under the ECO4 Grant. Let's make your home a beacon of energy efficiency!