Cavity Wall Extraction

Installing cavity wall insulation is the most effective energy-saving step. After all, 6 million homeowners can’t be wrong!
Good cavity wall insulation can cut your heat loss by up to 33% – and your energy bills by up to £690 a year, making this an excellent choice for your pocket and the environment.
Cavity wall insulation is one of the best and most affordable ways to improve your home’s energy efficiency.
Houses in the UK mostly have either cavity walls or solid walls:

  • Cavity walls are two layers with a gap or ‘cavity’ between them. If your home was built after the 1920s, it’s likely to have a cavity wall.
  • Solid walls have no gaps and can’t be filled with cavity wall insulation. If your home was built before the 1920s, the external walls are likely concrete rather than cavity.

Cavity walls can be insulated by injecting insulation into the cavity from the outside through drill holes in the outside walls. Insulation is typically mineral wool or polystyrene beads or polyurethane foam.

Rising damp comes from a water source outside the construction envelope finding its way into a property via capillary action within materials next to or within the construction. Water-containing salts, which are hygroscopic, are left on the structure’s surface, attracting moisture, which exacerbates the issue.

All of our work is guaranteed and carried out by qualified professionals.
Once we conduct an inspection, you’ll better understand if other problems result from dampness and causing problems.

  • The best-qualified teams in the UK
  • A guideline price over the telephone where possible
  • Free help and advice in diagnosing cavity wall problems
  • Detailed surveying capability (which may include thermal imaging and moisture monitoring where required)
  • Certificate provided on completion of work

Energy Bills

If you have insulation installed in your cavity walls, you can save up to 35% on heat escape and save money on your monthly heating and cooling bills. However, you may need to be corrected depending on your external wall insulation. Suppose the insulation in your cavities needs to be put up to standard, using good quality insulation and conforming to industry standards. In that case, the insulation’s effectiveness may be weakened and save you little-to-no money on your energy bills.

Wall Damage

Walls become damaged from rain, wind and overall harsh weather conditions. Over time, the insulation inside will start to break down and affect the composition of your wall, weakening the structure of your property and the effectiveness of the insulation. With over 13 million homes in Britain that have cavity wall insulation, you must ask yourself, is yours damaging your walls?

Insulation Standards

When cavity wall insulation was previously installed, specific standards and certifications were laid out by companies such as KIWA and BBA, companies known for setting standards in home and commercial insulation; it may have been before specific regulations were in place. Therefore, your insulation may need to be regulated to the required standard and be extracted and replaced to save you money.