Repair and installation of Engineering chains is one of the major capabilities of the «Almatyinzhstroy « holding, which are made on the regular basis. Our company made the most part of the heating mains in Almaty and we were the first company to usepreinsulated pipes D-700-1000mm. This technology has been applied in recent projects as well: the construction of connective heat line CHP-2-CHP-1 with pumping station and repair of heating networks on Mametova street in Almaty.