Clearing of tree roots from pipes and drains (plumbing services); Maintenance of plumbing; Plumbing; Renovation of plumbing; Drainage services; Wet and dry blasting; Maintenance and repair of gas installations and equipment; Maintenance and repair of electronic installations; Maintenance and repair of heating; Maintenance and repair of industrial apparatus; Maintenance, installation and repair of industrial apparatus and instruments; Disconnecting unused service lines (eg gas, mains water, electricity); Central heating installation; Electric appliance installation and repair; Heating equipment installation and repair; Installation of apparatus for heating; Installation of apparatus for ventilating; Installation of kitchen appliances; Installation of heating apparatus; Installation of central heating; Installation of washroom apparatus; Maintenance, installation and repair of electrical items and equipment; Installation of boilers; Repair of gas supply systems; Installation of apparatus for sanitation; Sanitation (cleaning services); Cleaning of drains; Installation of pipelines; Advisory services relating to the renovation of property; Renovation of kitchens; Installation of fixtures and fittings for domestic premises; Installation and repair of air-conditioning apparatus; Installation of apparatus for air-conditioning; Maintenance and repair of pipelines; Pipeline construction and maintenance; Advisory services relating to pipe laying; Maintaining and repair of drain pipes; Pipe installation services; Pipe laying services; Pipe-fitting; Sewer pipe cleaning; Sewer pipe maintenance; Sewer pipe renovation; Sewer pipe servicing; Electrical apparatus repair; Electrical installation services; Electrical wiring services; Installation of audio electrical apparatus; Residential, commercial and industrial installation and repair of electrical and computer wiring and cabling; Maintenance and repair of data communications networks; Electrical apparatus installation; Interference suppression in electrical apparatus; Maintenance and repair of electrical apparatus; Maintenance, installation and repair of household items and equipment; On site building project management; Project preparation relating to building renovation; Supervision of construction projects; Installation of lighting systems; Installing of telecommunications networks; Maintenance and repair of telecommunications apparatus; Electrical engineering services (construction); Installation of electrical apparatus; Repair of electrical appliances; Installation and repair of underwater pipelines; Installation of fittings for buildings