Terracing work: digging, grading of construction sites, opening of trenches, removal of rocks, destruction with explosives, etc.
Preparation of sites for mining: overburden removal and other work of planning and preparation for mining sites
Ground-water lowering and dredging of construction sites
Dredging of agricultural and silvicultural lands
Removal on 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)
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 blinds and florentine blinds
Installation of signs, lighted or not
Other work of n.e.s. installation, including accessories installation
Work of general installation
Installation of lifts and escalators
Assembling of frames
Works of recovering in all materials
Setting of rainwater disposal elements
Cleaning with steam, sandblasting and similar activities used on the outside of buildings
Setting of foundations, including pile hammering
Works of reinforcement and setting of casings
Building of industrial ovens and chimneys
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
Activities of holding management: intervention in daily management, representation of companies on the basis of possession or control of the capital stock, etc.
Advice and assistance for companies and public sectors in planning, organization, search of yield, control, management information, etc.
Chimney sweeping and cleaning of hearths, ovens, incinerators, boilers, air ducts and smoke removal appliances
Preparing land for construction
Plumbing works
Insulation works
Other types of building installations
Roofing
Making walls waterproof
Cleaning of frontages
Carrying out masonry and pointing
Other types of specialised building activities
Activities of main offices
Other types of cleaning of buildings; industrial cleaning