Work of maintenance and mechanical repairs for third parties
Installation of secondary power supply systems (electrical generators)
Building of sport fields, game fields, swimming pools, etc.
Setting of electric cables and appliances
Setting of telecommunication systems and computer installations
Setting of monitoring systems and alarms against housebreakings
Setting of lighting and signalling systems for roads, railroads, port and airport installations (including the setting of notice boards)
Installation in buildings or in other projects of building of: pumbling systems and hygiene appliances, pipes for gas and water (except for heating), setting of automatic extinguishers, etc.
Installation in buildings or in other projects of building of: heating systems by electricity, gas and fuel, boilers, materials and pipes for ventilation and air conditioning, etc.
Installation in buildings or in other projects of building of: heating, cooling and ventilation systems (except heating)
Setting of electrical installations of heating
Implementation in buildings or in other projects of building of: thermal insulation materials, acoustic and antivibrating insulation materials
Work of insulation of pipes for heating or cooling
Work of insulation of coolers or refrigerated warehouses
Installation of signs, lighted or not
Installation of lifts and escalators
Installation of private swimming pools
Wholesale trade of appliances for heating
Wholesale trade of equipments for sanitory systems and central heating: pipes, pipe fittings, tabs, rubber pipes, etc.
Creation and setting of advertisements: posters, advertising signs, lighting newspapers, lighting signs, display on buses, etc.
Chimney sweeping and cleaning of hearths, ovens, incinerators, boilers, air ducts and smoke removal appliances
Maintenance and repair of computers and peripherical computer equipment
Maintenance and repair of account machines and other office machines
Repair of household appliances
Production of radiators and boilers used in central heating
Repair of electronic and optical equipment
Repair of electronic devices
Electro-technical installation works at buildings
Plumbing works
Installation of heating, air-conditioning and ventilation
Insulation works
Do-it-yourself businesses and d.i.y. shops of common building materials
Reparations of computers and peripheral devices
Repair of communication devices
Repair of domestic devices and of equipment used in house and in the garden
Other types of building installations
Other types of specialised building activities
Wholesale in installation materials used by plumbers and for the installation of heating
Electro-technical installation works, with the exception of those executed at buildings