Servicing will prolong the life of your boiler by detecting faults sooner rather than later. The Gas Safe Register recommends that all boilers should be serviced annually whatever its age. On newer boilers our gas engineers will carry out a ‘flue-gas analysis’ to check that it’s burning properly and ensure the boiler is working safely. On older boilers we may give them a vacuum to keep them free of debris. Sometimes seals need changing to stop carbon monoxide and heat escaping.