Installation and construction works

Construction of gas and oil-fired hot water and steam boilers, except the projects of the first difficulty category;
Construction of external gas distribution networks of steel and polyethylene gas pipelines;
Excavation works;
Construction of heating systems;
Installation of gas consumption systems, pressure reduction spools (gas-distributing units, gas cabinets, gas-distributing plants) and gas facilities;
Installation of heating systems and ventilation;
Installation of power supply, electric light systems and power consumption facilities;
Installation of automation systems;
Installation of automated fire alarm system;
Installation of metalware;
Installation of water supply systems and sewerage systems;
Making of nodes for gas supply systems and heating consumption systems;
Arrangement of heat insulation;
Installation of cogeneration facilities for generation of electricity.