Destruction of buildings and other kind of buildings
Setting of telecommunication systems and computer installations
Setting of monitoring systems and alarms against housebreakings
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.
Setting of electrical installations of heating
Application in buildings and in other projects of building of gypsum or stucco, inside and outside, including the associated lathing materials
Cleaning with steam, sandblasting and similar activities used on the outside of buildings
Masonry
Development of residential building projects
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