Do you have any of the following symptoms?
Cold spots in radiators
Radiator cold at the bottom
Radiator cold at the top
Radiators require regular bleeding
Blocked pipes and valves due to sludge or lime scale
Boiler cutting out due to damaged or blocked pump
Radiator water is black or brown with iron oxide sludge
The boiler is noisy or makes 'kettling' sounds
The pump is noisy or suffering repeated failure
The pipes are noisy due to restrictions
Pin-hole leaks appearing in radiator bodies
If you recognise any of these symptoms your heating system may need to be power flushed.