Cavity Wall Insulation

A cavity wall consists of an outer brick wall and an inner wall made of brick or concrete block, with the space between them known as the cavity. Injecting insulation material into this cavity traps heat, pushing it back into the property to enhance warmth and energy efficiency.

To insulate a cavity wall, a Go To Eco ECO-approved installer will drill small holes into the property’s exterior. Insulation material, typically mineral wool, polystyrene bead, or polyurethane foam, is then injected into the cavity through these holes, which are subsequently sealed. The main benefits of cavity wall insulation include a warmer home, lower energy bills, and an improved carbon footprint.

Does your home have cavity walls? The construction era of a property is a reliable indicator of its wall type. Properties built after the 1920s often feature cavity walls. If the age of your property is uncertain, examining the exposed brick can help identify the wall type; a cavity wall will typically display an even pattern of uniformly sized bricks.

How can you determine if the cavity walls are already insulated? Generally, properties constructed from the 1990s onward may have some insulation in the cavity. To confirm this, a qualified installer will drill a small hole in the wall and use a borescope to inspect the cavity.

Properties without cavity walls have solid walls and require different insulation methods. solid wall section

Under the current ECO scheme, qualifying properties may be eligible for free cavity wall insulation.