Power flushing is a specialist way to clean a central heating system when sludge and debris restrict circulation. UK homeowners may consider it when radiators heat poorly, the boiler becomes noisy or repeated repairs do not solve the problem.
How power flushing works
An engineer connects cleaning equipment to circulate water and suitable chemicals through the system. Radiators may be cleaned individually while the engineer monitors the water and flow. The system is then rinsed and refilled correctly.
When might it help?
Common signs include cold radiator bottoms, uneven heating, gurgling, frequent pump problems and dark water. These symptoms can have other causes, so testing is important before work begins.
What should happen afterwards?
The system should receive inhibitor and may benefit from a magnetic filter. The engineer should check pressure, leaks, controls and radiator performance. Power flushing cannot repair corroded radiators or faulty valves.
Conclusion
Power flushing can restore circulation when contamination is the genuine cause. Obtain an assessment from a qualified professional and ask what evidence supports the recommendation.