Remove sludge • Restore efficiency • Lower your bills
RECOMMENDED
£399
Gentler method • Most homes • Includes inhibitor
AGGRESSIVE OPTION
£499
For heavily sludged systems
Chemical Flushing is our preferred and most recommended method. We circulate a powerful, non-acidic cleaning solution through your entire heating system (boiler, radiators, and pipework) to dissolve and remove sludge, rust, and debris. Once the system is clean, we add a premium corrosion inhibitor to protect it moving forward.
This gentler approach is ideal for most modern systems and carries the lowest risk to existing components.
Power Flushing uses a high-powered pump to force water and cleaning chemicals at high velocity through the system. This method is more aggressive and is typically used on older systems with very heavy sludge buildup.
| Feature | Chemical Flush (Recommended) | Traditional Powerflush |
|---|---|---|
| Gentleness | ✅ Much Gentler | More Aggressive |
| Best For | Most modern systems | Heavily sludged older systems |
| Risk Level | Low | Higher |
| Price From | £399 | £499 |
While we are happy to carry out a Powerflush when necessary, we strongly prefer and recommend Chemical Flushing for most systems because it is gentler and more effective for typical pipework.
If you choose a Powerflush, you will be asked to sign a disclaimer accepting liability for any pre-existing pipework, radiators, or components. The Gas King will only accept liability for any damage caused by our own workmanship.
Clearing sludge can improve system efficiency by up to 25%.
Eliminates kettling noises and cold spots in radiators.
Extends the life of your boiler, pump and radiators.
A dirty system forces your boiler to work harder, increasing the risk of dangerous carbon monoxide leaks. Flushing helps keep your home safe.
Pair your flush with a Care Plan for ongoing peace of mind
