37
HVAC (Heating, ventilation and air conditioning) installation, maintenance and repair; Retrofitting of heating, ventilating and air conditioning installations in buildings; Installation of heating and cooling apparatus; Advisory services relating to the installation of heating and cooling apparatus; Air conditioning contractor services; Refurbishment of air conditioning plant; Repair or maintenance of air conditioning apparatus; Maintenance and repair of air conditioning apparatus; Air conditioning apparatus cleaning services; Installation and repair of air-conditioning apparatus; Freezing equipment installation and repair; Maintenance and repair of cooling appliances and installations; Installation of heat exhaust systems; Installation, repair and maintenance of steam condensers; Freezers (Installation of -); Retrofitting of air conditioning installations in buildings; Maintenance of electronic or air conditioning systems; Repair or maintenance of air-conditioning apparatus [for industrial purposes]; Installation of air conditioning apparatus for use in clean rooms; Providing information relating to the repair or maintenance of air conditioning apparatus; Installation, repair and maintenance of heating equipment; Installation of boilers; Installation of electric heat tracing; Installation of industrial heat tracing; Installation and maintenance of solar thermal installations; Maintenance and repair of solar heating installations; Installation of geothermal installations; Installation of central heating apparatus; Maintenance and repair of storage tanks; Maintenance and repair of oil and gas storage installations; Heating equipment installation and repair; Furnace installation and repair; Installation of skin-effect heating; Installation, repair and maintenance of boiler tubes; Advisory services relating to the installation of solid fuel heating systems; Installation of gas supply and distribution apparatus; Plumbing installation, maintenance and repair; Maintenance of plumbing; Installation of sanitary apparatus; Installation of sanitary apparatus; Installation of water supply apparatus; Installation of water softeners; Installation of plumbing systems; Services for the installation of sewers; Advisory services relating to the installation of plumbing; Advisory services relating to the maintenance of plumbing; Installation of washroom apparatus; Pipeline construction and maintenance; Installation of industrial piping; Maintenance and repair of ventilating apparatus; Installation of ventilation and dust extraction systems; Retrofitting of ventilating installations in buildings; Installation of smoke extraction systems; Installation of industrial machinery; Maintenance services for industrial plants; Installation of industrial plant; Maintenance and repair of pipes used in industrial equipment; Installation of plant; Installation of building automation equipment; Construction of steel fabrications; Construction of steel structures for buildings; Welding of steel structures for constructional purposes; Assembly of structural steel installations; Maintenance and servicing of structural steel installations, industrial installations and building technology; Construction services; Construction services; Installation of solar powered systems; Installation of environmental engineering systems; Installation and maintenance of photovoltaic installations; Installation and maintenance of photovoltaic installations; Installation of photovoltaic cells and modules; Installation of residential solar panel power systems; Installation of active fire protection; Installation of passive fire protection; Advisory services relating to the installation of fire prevention equipment; Installation of industrial fire protection; Maintenance and servicing of fire alarm systems
40
Custom manufacture of buffer storage, cooling and heating distributors and special mouldings for building technology and industrial installations; Custom fabrication of steel construction elements; Custom manufacture of prefabricated buildings; Custom construction of machines; Custom manufacture of special mouldings; Custom manufacture of prefabricated installation parts for industrial installations; Custom manufacture of prefabricated installation parts for technical installations; Custom manufacture of prefabricated installation parts for structural steel installations, industrial installations and building technology; Manufacture of structural steel installations
42
Technological planning services; Engineering design and consultancy; Technical project planning; Civil engineering planning services; Design and planning of heating and cooling installations and systems; Technical design services relating to sanitary apparatus and installations; Drawing up of planning documents and preliminary drafts for the manufacture of structural steel installations, industrial installations and building technology; Consultancy relating to design modelling relating to structural steel installations, industrial installations and building technology; Preparation of static calculations relating to structural steel installations, industrial installations and building technology; Technical drawing; Technical design and planning of heating installations; Technical design and planning of water purification plants; Technical design and planning of pipelines for gas, water and waste water; Design services relating to civil engineering; Engineering services for the design of structures; Design of space-truss structures; Design of industrial plant; Technical assessments relating to design; Technical design services relating to cooling appliances and installations