System power flush
- Fixed price
The short answer
Clean sludge from heating
- Price from
- £450.00
- Time on site
- 4 to 8 hours
What you get
Your central heating system will be thoroughly cleaned to remove accumulated sludge and rust.
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When do you need a System power flush?
Consider a power flush if your radiators are cold at the bottom, take a long time to heat up, or if your boiler is noisy. It's also recommended after replacing an old boiler with a new one to protect the new unit.
What happens on the day
The engineer will connect the power flushing machine to your heating system, usually via a radiator or the pump. They will circulate cleaning chemicals and fresh water, flushing out dirty water and debris until the system runs clear. This process involves working through each radiator individually.
How to prepare
- Clear access to all radiators, boiler, and pipework.
- Ensure all furniture is moved away from radiators.
- Have towels ready in case of minor drips.
- Be prepared for the heating to be off for several hours.
- Confirm parking is available for the engineer's van.
How to improve your result
- Consider installing a magnetic filter afterwards to collect future debris.
- Ensure your system is regularly topped up with inhibitor to prevent sludge build-up.
- Bleed your radiators periodically to release trapped air.
- Schedule annual boiler servicing to maintain overall system health.
Why it is useful day to day
A power flush helps restore your heating system's efficiency, leading to warmer rooms, faster heat-up times, and potentially lower energy bills. It also extends the life of your boiler and radiators by preventing corrosion and blockages.
Why we ask these questions
We ask about the number of radiators and system age to estimate the required chemicals and time. Boiler type helps confirm system compatibility. Understanding previous issues helps tailor the cleaning approach.
Frequently asked questions
Often needed alongside
- Fixed price
- Recurring
Annual boiler health check
Service plus safety check
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Oil & LPG system check
Service for off-grid heating
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Gas fire & stove service
Service or repair fires and stoves
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Boiler breakdown
Diagnose and repair
Radiators & valves
Fit, move, repair, bleed
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Hot water cylinder
Unvented and immersion repair or replace
- Urgent
Electrical fault finding
Tripping, no power, faults
Sockets, switches & lights
Add, move or replace
