Setting in buildings or other projects of building of: wall recoverings or tiles in ceramic, in concrete or in freestones; floorings and wall recovering in granites, etc.
Inside and outside paint of buildings
Laying of floors and fitting wooden wall-coverings
Painting of buildings
Repair and maintenance of house boilers
Hanging wall-paper, as well as flooring and wall-coverings of other materials
Electro-technical installation works at buildings
Electro-technical installation works, with the exception of those executed at buildings
Plumbing works
Installation of heating, air-conditioning and ventilation