How long will my boiler last? Most manufacturers claim a lifespan of a boiler is around 10 to 15 years, companies like Baxi will offer you up to, a 10 year warranty and Worcester Bosch will give you up to a 12 year guarantee on there new boilers for your peace of mind. If your boiler is is around this age and causing you issues it may be time to change it for new boiler and a Gas Safe Registered engineer will give your honest advice on upgrading your boiler if needed. This doesn’t mean...