Cleaning with steam, sandblasting and similar activities used on the outside of buildings
Masonry
Making of repointing works
Setting of foundations, including pile hammering
Inside cleaning of all kind of buildings: offices, industries, institutional premises and other premises for professional or trade use, apartment buildings, etc
Preparing land for construction
Electro-technical installation works at buildings
Other types of building installations
Carpentry
Painting of buildings
Restoration of buildings
Cleaning of buildings
Other types of cleaning of buildings; industrial cleaning