Serving homes & businesses in the greater st croix area for over years! You don't have to use your energy provider's boiler cover! Dorset business awards winner of and national energy efficiency awards finalist. Called early am, they answered and scheduled the only time that worked for me fixed everything in moments and i was very happy! thank you!! The main advantage of gas central heating is that it is convenient because the house is connected to the mains supply, there is no need.