Cavity Wall Insulation

If your home was built after 1920, the chances are that its external walls are made of two layers with a gap or cavity between them. Cavity wall insulation fills that gap, keeping the warmth in to save energy. It can also help reduce condensation inside the house if this is a problem on your external walls. Your home will usually be suitable for cavity wall insulation if:

  • its external walls are unfilled cavity walls
  • your cavity is at least 50mm wide
  • the masonry or brickwork of your property is in good condition
  • it is more than ten years old (most newer houses will have insulation already)
  • the walls are not exposed to driving rain.

Installing Cavity Wall insulation can save you hundreds of pounds a year in heating costs while saving over a ton of carbon per year

A company at the forefront of the latest insulation and glazing technology

Great Energy Savings


Cavity wall insulation reduces wall heat loss by up to 53%


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