Air conditioning apparatus installation and repair; Central heating installation; Double glazing installation; Electric appliance installation and repair; Freezing equipment installation and repair; Furnace installation and repair; Heating equipment installation and repair; Installation of apparatus for air-conditioning; Installation of apparatus for heating; Installation of apparatus for ventilating; Installation of central heating; Installation of heating apparatus; Maintenance and repair of gas installations and equipment; Maintenance, installation and repair of electrical items and equipment; Maintenance, installation and repair of household items and equipment; Maintenance, installation and repair of industrial apparatus and instruments; Provision of information in relation to the repair, maintenance and installation of goods; Roof installation services; Electrical wiring services; Maintenance and repair of heating; Maintenance of domestic refrigeration; Maintenance of plumbing; Maintaining and repair of roof guttering; Repair of roofs; Resurfacing of roofs; Roof restoration; Plumbing