Maintenance
Power Flushing
Over time, central heating systems build up rust, scale, and black sludge (magnetite) that reduces efficiency and causes radiators to have cold spots. Power flushing removes this build-up, restoring full heating performance.
From £349 4–8 hours Gas Safe Registered
What's Included
- Full system power flush
- Chemical descaling
- Black sludge removal
- MagnaCleanse filter clean
- Inhibitor dosing to prevent future build-up
- System pressure test
- Radiator temperature check (before and after)
At a Glance
Starting Price£349
Typical Duration4–8 hours
CategoryMaintenance
QualificationGas Safe Registered
LocationCorby & Northamptonshire
Finance0% available
Frequently Asked Questions
How do I know if I need a power flush?
Signs include cold spots on radiators (especially at the bottom), noisy boiler, slow heating, or discoloured water when bleeding radiators.
How long does a power flush last?
With a magnetic filter and annual inhibitor top-up, a power flush should keep your system clean for 5–10 years.
Is power flushing required for a new boiler installation?
If your existing system has sludge build-up, yes. We'll advise whether a power flush is needed based on the condition of your system.
Book Power Flushing in Corby
Fixed price, Gas Safe engineers, next-day availability.