Walltherm is a glass mineral wool cavity wall insulation material that can be injected into both new and existing domestic homes. The material is BBA-approved, meaning that it meets and potentially exceeds a minimum requirement for cavity wall insulation.

Domestic and General employ a number of installers who are approved under the BBA Surveillance Scheme to install Walltherm.

The material itself offers high levels of thermal performance in addition to reducing the risk of condensation and water penetration. It is installed by Domestic and General in cases where other methods of insulation are not suitable or if the customer specifies the material.

Our installation crews are able to install Walltherm in specialist cases and the material is subject to a 25 year guarantee from the Cavity Insulation Guarantee Agency.