Cavity insulation installers fit insulation materials into buildings, such as damp proofing, loft insulation, sound proofing and cavity wall insulation. This work will reduce energy costs of the building and is good for the environment. Cavity insulators often work in small teams and work on individual properties on behalf of a house owner to insulate a person's home. Cavity insulation installers would also work on larger commercial projects such as schools and hospitals. Installers may carry out pre-installation surveys and write reports for the client identifying the work required with possible solutions.