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)
Dredging
Water-works, with the exception of dredging
Construction of other types of civil-technical works
Demolishing
Preparing land for construction
Drilling and pre-drilling
Electro-technical installation works, with the exception of those executed at buildings
Plumbing works
Installation of heating, air-conditioning and ventilation
Insulation works
Other types of building installations
Plastering work
Carpentry
Laying of floor and wall tiles
Laying of floors and fitting wooden wall-coverings
Hanging wall-paper, as well as flooring and wall-coverings of other materials
Painting of buildings
Painting of civil-technical works
Glazing
Other types of works with regard to the completion of buildings
Making walls waterproof
Cleaning of frontages
Carrying out masonry and pointing
Restoration of buildings
Works with cement concrete
Other types of specialised building activities
Rental and exploitation of own or leased non-residential real estate, with the exception of social housing
Rental and exploitation of own or leased non-residential real estate, with the exception of land
Roofing
Electro-technical installation works at buildings
Construction of civil-technical works for electricity and telecommunications