Regular servicing minimises the risk of breakdown and helps lengthen the lifespan of your boiler too. You should have your boiler serviced annually to ensure it's running efficiently and safely for the year ahead. It may also be necessary to validate any manufacturer's warrantees you have on the appliance. Regularly servicing your boiler ensures it is combusting fuel safely and efficiently, minimizing the risk of carbon monoxide poisoning. This toxic gas is odourless, colourless and tasteless, meaning that it is hard to detect naturally.