As with all heating appliances, your gas or oil boiler needs to be serviced once a year, as recommended by the manufacturers, to ensure that it is operating efficiently and safely. An efficient boiler is more environmentally friendly leading to lower gas consumption, therefore lowering your bills. The safety aspect is even more critical as a regularly serviced boiler will operate safely i.e. the fuel will burn correctly, reducing the risk of emissions of poisonous Carbon Monoxide and / or production of soot.