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Clear the sludge. Feel the difference.
Over time, rust and debris build up as sludge inside your heating system. A power flush cleans it out so your radiators heat evenly and your boiler works less hard.
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Quick answer
A power flush pumps cleaning chemicals through your central heating at high flow to remove sludge, rust and scale. It helps when radiators have cold patches at the bottom, the boiler is noisy or heating is slow. It is often recommended before fitting a new boiler.
When to call
Signs you need help with power flushing
- Radiators cold at the bottom or in patches
- Discoloured water when you bleed a radiator
- Noisy boiler or pump
- Slow heat-up times
- Fitting a new boiler to an old system
Our process
How we fix it
- 01
Connect
A power flushing pump is connected to the system, usually at the pump or a radiator.
- 02
Clean
Cleaning chemicals are circulated at high flow, radiator by radiator.
- 03
Rinse
The system is flushed with clean water until it runs clear.
- 04
Protect
Inhibitor is added and the system refilled, bled and balanced.
Why us
What you can expect
Even heat
Clean radiators heat from top to bottom, so rooms warm up properly.
Easier on the boiler
Better circulation means less strain on the pump and heat exchanger.
Protected afterwards
We add inhibitor to slow future corrosion and can fit a magnetic filter.
What this service covers
- Domestic power flushing
- Commercial power flushing
- Magnetic filters
- Inhibitor dosing
FAQs
Power flushing: your questions answered
How long does a power flush take?
Most homes take between five and eight hours depending on the number of radiators and how dirty the system is.
Is a power flush worth it?
If your radiators have cold patches at the bottom or the water you bleed is dark, yes — a flush restores circulation. If the radiators heat evenly, you probably do not need one.
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Get your free quote
Call us any time, day or night. We will tell you the price band for when you need us and how soon an engineer can be there.