Terracing work: digging, grading of construction sites, opening of trenches, removal of rocks, destruction with explosives, etc.
Making of horizontal drillings for cables or pipes
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
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
Assembling and disassembling of scaffoldings and work platforms
Repair of automobile vehicles: repair of mechanical elements, electrical repair
Reconditioning of engine of automobile vehicles
Insulation works
Other types of works with regard to the completion of buildings
Reparation and assembly of specific car parts
Wholesale in installation materials used by plumbers and for the installation of heating
Various ancillary activities in regard to housing facilities
Electro-technical installation works at buildings
Installation of heating, air-conditioning and ventilation