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.
Setting of electrical installations of heating
Construction of residential buildings
Construction of office buildings
Construction of other types of non-residential buildings
Installation of heating, air-conditioning and ventilation