Renovations in Progress

Internal Wall Insulation

Internal Wall Insulation is a cheaper alternative to a lot of other types of insulation but is it right for you? We'll answer your questions about IWI what kind of benefits it may have for your energy bill.

What is Internal Wall Insulation?

Internal wall insulation (IWI) is a type of insulation that is put into the internal walls of a building. It fits into the battens of walls (wooden frames) and they are filled with a wool-fibre board. 

Installing Internal Wall Insulation

How much does internal wall insulation cost?

The cost of internal wall insulation depends on the size of your home. It is one of the of the more expensive types of insulation, it can still cost up to £8,000 (based on a typical 3-bed, semi-detached house) but there are currently Government energy schemes that are available for internal wall insulation and many other types of insulation. If you are in receipt of benefits or have a low income, you will be accepted and possibly receive internal wall insulation for free.*