В связи с тем, что жилой фонд постепенно изнашивается, многие технические системы старых домов могут в скором времени прийти в полную негодность, вызвав большие проблемы в этих домах. А также в связи с тем, что стоимость тепла постоянно растет, увеличивая с каждым годом затраты на коммунальные нужды потребителей, целесообразными являются действия квартирных товариществ по реновации и модернизации различных систем дома.
Исходя из уже проделанных в доме работ, а также приняв во внимание риски, связанные с устаревшей системой стояков и радиаторов, самой наилучшей инвестицией будет реновация системы отопления. Помимо уменьшения рисков, будет достигнута существенная экономия расходов на отопление.

Мой вариант такой

Due to the fact that the housing stock is gradually deteriorating, many engineering systems of old houses can get out of order, causing big problems. And also, due to the fact that the heat cost is combining up permanently, adding to the expense of consumers, it is useful to modernize and renovate various engineering systems.
Issue from executed work in the apartment building, and also taking cognizance of risks, that are associated with the old lift pipe and old systems of radiators, the best investment is the modernization of heating system. Beyond risks reduction, this modernization will decrease the heat cost.

THE GRADUAL DETERIORATION OF THE RESIDENTIAL BUILDING/PROPERTY MAY CAUSE Due to the fact that the housing stock is gradually deteriorating, THE VARIOUS many UTILITY/engineering systems of (THE) old BUILDINGS/houses TO BECOME UNFIT FOR USE can get out of order, causing THESE BUILDINGS/PROPERTIES big problemsSIGNIFICANT DAMAGES. BESIDES, And also, due to the CONSTANT RISE OF fact that the heatING costS is combining up permanently AND THE ASSOCIATED INCREASE IN adding to the CONSUMER expenseS of consumers, it is DEEMED EXPEDIENT useful to modernize and renovate THE BUILDING'S/PROPERTY'S various UTILITY engineering systems. ( тут вы про товарищества упустили)

BASED ON Issue from THE REPAIRS ALREADY COMPLETED executed work in the apartment building and also CONSIDERING taking cognizance of THE POTENTIAL risks , that are associated with the old RISER? lift pipe and old RADIATOR systems of radiators, the best investment WOULD BE is IN the REPAIR/REPLACEMENT modernization of THE heating system. Beyond BESIDES REDUCING THE risks reduction, this modernization will IT WOULD ALLOW CUTTING THE decrease the heatING costS.