| operation of premises | comprehensive operation of commercial premises | upkeep of buildings | operation service | technical follow-up | dispatching | operation of fire-burglar alarm system | operation of lifts and escalators | operation of ventilation and air conditioning systems | operation of water-supply and sewerage systems | operation of heat supply systems | operation of power supply networks | cleaning, cleaning services, professional cleaning of rooms | overall cleaning of rooms | general cleaning of premises | dry cleaning | disinfection, disinsection, rat extermination | washing and cleaning of escalators | washing of glass surfaces | industrial alpinism, high-elevation work | restoration and protection of floor coatings | site accomplishment | repair of buildings and structures | grand service news | publications in media |