Cavity insulation fills the gap between your home's inner and outer walls, reducing energy loss. This reduces heat loss in winter, so less heating is needed and helps to keep your home cooler in summer. It also helps to improve your property's EPC rating.

There are various different types of insulation available, with each suitable for different properties and applications. These include mineral wool (either as a dry fill or blown), polystyrene bead insulation, glass wool and cellulose, foam insulation such as Icynene or closed and open cell spray foam, and fibreglass blankets and boards.

Wall cavity insulation batts are pre-cut sections of insulating material that fit into the spaces between your home's walls. They are a cost-effective and easy option for older homes with existing cavities. They are also a good choice for new-build houses as they offer excellent thermal performance and can be installed quickly.

The main benefits of a full-fill cavity wall insulation are that it prevents moisture travelling from the outside through the walls and into your home, a major cause of dampness problems. It also significantly reduces the amount of energy your home needs to keep warm in winter and cool in summer, further reducing your energy bills.

However, it is important to understand that the correct installation of cavity wall insulation is critical for the long term performance. If the insulating material is not installed correctly it can lose its performance, allowing moisture to penetrate the wall structure, and can create gaps in the wall which could allow water infiltration and dampness into your home. This is particularly a risk in flood-prone areas or where there are existing drainage issues. Cavity insulation