Typically, the process of ‘kettling’ leads to domestic radiators making a banging noise. This refers to a build-up of limescale within a central heating system, rather than in the actual radiators.
Regions with hard water supplies are more prone to kittling, such as South and East areas of England, so banging radiators could tend to be more prominent in these places.
To combat relatively minor instances of kettling, you can drain your radiators to allow trapped air and water to escape. But for more complicated cases where banging noises persist after draining, a heating system power flush might be needed to eradicate all limescale and grime from the boiler.
For a more detailed insight, explore our dedicated blogs, How To Cure A Noisy Central Heating System, and Noisy Radiators: Diagnostics and Cures.