Boring and building of waterwells, driving of wells
Building of conveyance, distribution and water disposal networks
Building of gas, fuel transport networks, etc.
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)
Cleaning of new buildings and restoring after works
Other works of finishing in buildings n.e.s.
Setting of foundations, including pile hammering
Assembling of elements of metallic structures, not made by the unit making the works
Making of lifting works for third parties
Assembling and disassembling of scaffoldings and work platforms
Letting of building material with operator
Making of all submarine works
Installation of private swimming pools
Construction of civil-technical works for liquids
Installation of heating, air-conditioning and ventilation
Other types of works with regard to the completion of buildings