FAQ for Cavity Wall Insulation
Most frequent questions and answers
Cavity wall insulation involves filling the space (or cavity) between the two layers of your external walls with insulating material. This helps reduce heat loss and improve your home’s energy efficiency.
The insulating material, such as foam, fiberglass, or mineral wool, is injected into the cavity between your home’s inner and outer brick layers. It acts as a barrier, preventing heat from escaping, thus reducing the need for heating and saving on energy bills.
- Improved energy efficiency: Helps retain heat inside the home, reducing energy consumption.
- Lower heating bills: Reduced reliance on central heating to maintain a comfortable temperature.
- Environmental benefits: Reduces carbon emissions by decreasing energy usage.
- Improved comfort: Keeps your home warmer in winter and cooler in summer.
Most modern homes with cavity walls can have insulation installed, but it is not suitable for solid walls or homes with structural issues. A professional assessment is required to determine whether your property is eligible.
The cost varies depending on the size of the property and the type of material used for insulation. On average, cavity wall insulation costs between £500 and £1,500, with long-term savings through reduced heating bills.
Yes, cavity wall insulation is a long-term solution for improving energy efficiency. If installed correctly, it can last for the lifetime of the home. Many providers offer warranties for the insulation work.
You can check by looking at the external walls of your property. If there is a gap between the inner and outer walls, it may be suitable for insulation. Alternatively, you can contact a professional to assess your property.
Yes, homes with cavity wall insulation generally see a significant reduction in heating costs, with estimates suggesting savings of up to £160 per year on energy bills.
If improperly installed or if your home has specific issues like damp or condensation, cavity wall insulation may cause problems. However, these risks can usually be mitigated with a professional survey and proper installation.
Cavity wall insulation generally requires little maintenance. However, it’s important to address any potential leaks, dampness, or cracks in the walls, as these can affect insulation effectiveness.