The basic idea
A power flush connects a specialist pump to your heating system and circulates water — with cleaning and de-scaling chemicals — through the radiators, pipework and boiler at high flow, to dislodge and carry away the sludge that has built up inside.
How the process works
The engineer connects the flushing unit, treats the system with a cleaner, and works through the radiators one by one, agitating stubborn deposits (often with a magnet or gentle tapping) until the water runs clear. The dirty water is flushed out and replaced.
Finishing with an inhibitor
Once the system runs clean, a corrosion inhibitor is added to slow future rust and sludge. Fitting a magnetic filter at the same time catches debris going forward and makes the flush last longer.
What it achieves
A good flush restores proper circulation — warmer radiators, a quieter boiler, faster warm-up and better efficiency — and takes strain off the boiler and pump, which can extend their life.
Thinking a power flush might sort your heating? We’ll confirm it’s needed and do it properly — full clean, inhibitor and, if you want, a magnetic filter. South Manchester and Cheshire.
See our power flushing service
