Installation of secondary power supply systems (electrical generators)
Terracing work: digging, grading of construction sites, opening of trenches, removal of rocks, destruction with explosives, etc.
Ground-water lowering and dredging of construction sites
Removal on construction sites
Test borings, test holes and corings for building and geophysical, geological and similar studies
Making of horizontal drillings for cables or pipes
Setting of electric cables and appliances
Setting of monitoring systems and alarms against housebreakings
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
Work of general installation
Installation of lifts and escalators
Setting of antennas and lightning rods
Cleaning of new buildings and restoring after works
Cleaning with steam, sandblasting and similar activities used on the outside of buildings
Making of repointing works
Making of lifting works for third parties
Assembling and disassembling of scaffoldings and work platforms
Creation and setting of advertisements: posters, advertising signs, lighting newspapers, lighting signs, display on buses, etc.
Repair of metal products
Repair of electronic devices
Installation of industrial machines, devices and equipment
Construction of civil-technical works for liquids
Construction of civil-technical works for electricity and telecommunications
Electro-technical installation works at buildings
Electro-technical installation works, with the exception of those executed at buildings
Plumbing works
Reparations of computers and peripheral devices
Repair of consumer electronics
Repair of domestic devices and of equipment used in house and in the garden
Installation of heating, air-conditioning and ventilation