Building of conveyance, distribution and water disposal networks
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
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)
Making of repointing works
Installation of private swimming pools
Trade intermediaries for supplies for plumbering, equipments of electric system for houses and heating systems
Development of projects requiring acoustic engineering, technics of air-conditioning, cooling, refrigeration, sanitation and fight against pollution, etc.
Repair of metal products
Construction of civil-technical works for liquids
Installation of heating, air-conditioning and ventilation
Insulation works
Wholesale in installation materials used by plumbers and for the installation of heating
Retail trade in sanitary products and sanitary installation materials in specialised shops