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
Repair of metal products
Repair and maintenance of house boilers
Installation of heating, air-conditioning and ventilation
Retail trade in sanitary products and sanitary installation materials in specialised shops
Laying of floor and wall tiles
Roofing
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.
Construction of residential buildings
Construction of office buildings
Construction of other types of non-residential buildings
Assembling of inside and outside woordworks: doors, windows, closets of equipped kitchens, shop equipments, frames for windows and doors, etc.