Installation, insulation, repair and maintenance services in respect of insulating materials, panels, sheets and thermal wall linings; installation of flooring, including acoustic flooring; fitting services relating to flooring, including acoustic flooring; repair services relating to flooring, including acoustic flooring; installation of packing, stopping and installation materials; fitting services relating to the fitting of packing, stopping and insulating materials; repair services relating to packing, stopping and insulating materials; installation, repair and maintenance of carpets, carpet tiles, underlays and insulating floor coverings