4 Seasons Ltd. are based in Durham and cover the North East of England,providing climate control solutions to offices,shops,surgeries and homes. 4 Seasons Ltd. offer a turnkey service, using only top quality equipment, which carries a manufacturer backed, 5 year parts and labour warranty.4 Seasons Ltd. are experts in the use of heat pump technology to provide heating and hot water to homes, at a fraction of the cost of oil,gas or electric systems.