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
Cleaning of new buildings and restoring after works
Other works of finishing in buildings n.e.s.
Assembling of frames
Works of recovering in all materials
Setting of rainwater disposal elements
Plumbing works
Installation of heating, air-conditioning and ventilation
Other types of works with regard to the completion of buildings