Repair, maintenance and servicing of boilers and gas appliances. The maintenance and repair of gas heating systems in Sheltered Housing Units. The contract includes the servicing and repairs of centralised gas-fired central heating, gas-fired central heating, including boiler replacement, individual gas fires, gas water heating appliances, hot and cold water services generally. It also includes central heating Landlords gas safety checks only and the testing and cleaning of mains powered smoke alarms (excluding replacement). The contract also includes the testing and cleaning of mains powered carbon monoxide alarms (where fitted) and installation of mains powered carbon monoxide alarms (where absent). The contract covers all gas, oil and electric wet heating systems and hot water appliances, including flues. The contract includes emergency call out cover.