About 35% of all heat loss from UK homes takes place through external walls. Most homes built after 1920 have twin exterior walls with a narrow cavity between them.
This can be filled with an insulating material being injected into the walls. This restricts any warmth passing between them, reducing the money you spend on heating.
If you’re unsure whether your walls have a cavity in them you can usually check by either looking at the pattern of bricks or by measuring the thickness of the walls next to a door or window:
- If the thickness of the wall is 260mm or greater, the wall probably has a cavity.
- If the brickwork is exposed, look at the brick pattern. If the bricks are all oblong, laid end-to-end then the wall is likely to have a cavity. If some of the bricks are laid with the square end facing, the wall is likely to be solid.
- If the wall is stone, it is likely to be solid.
Cavity wall insulation. Professional installation is a must.
Uninsulated cavity walls lose 35% or more of the heat generated within the property. So for an uninsulated house that’s £1 of heat escaping for every £3 spent heating it. If your house was built after 1920 then your property should have cavity walls which may need insulating.
It requires well maintained, specialist equipment costing several thousands of pounds to inject the insulation material – generally blown fibre – into the cavity effectively. Our installers are fully qualified and have years of experience and all of our work carries a 25 year warranty.
With the right equipment, handled by experienced installers, the whole process should take between 2-3 hours depending on the size of the property.
