Central Heating Power Flush
What it is and Why you need it
Over time, central heating systems can build up sludge, rust, and debris. This affects how well your radiators and boiler work, leading to cold spots, noisy pipes, and higher energy bills. A Power Flush is a deep clean for your heating system – and it can make a big difference.
What is Powerflushing?
Over the lifespan of your central heating system, internal corrosion leads to your radiators and pipework accumulating sludge, rust and limescale, and causes damage to your boiler. Sludge and debris deposits clog up your central heating system causing cold spots in your radiators and lead to higher energy bills as your boiler must work harder.
Power Flushing, also known as radiator cleaning or system flushing, is a professional cleaning process for your central heating system.
How does a power flush work?
A Power Flush uses a specialist water pump, alongside tough cleaning chemicals to flush out all the grime, sludge and rust deposited in your radiators, pipework and boiler. Thermal imaging technology is used to identify the location of the sludge. Once the Power Flush is complete, you will be left with an optimally working central heating system, working as efficiently as it was when brand new. Boost your central heating by using Power Flush Derby today!
In a nutshell
A Power Flush is super important to maintain and increasing the efficiency and lifespan of your central heating system. It restores proper hot water circulation, ensuring that you and your family keep warm during the colder months.
To get expert advice with choosing the best power flush solution for your home, please call today on…
Key Benefits:
Warmer radiators with no cold spots
Better energy efficiency, reducing heating costs
Quieter system with improved flow
Increased lifespan of your boiler and heating components
- Faster home heating as your central heating heats up faster
Proof of completion for boiler warranties and boiler service plans
Signs your home needs a powerflush?
- Noisy boiler – knocks and bangs, especially on start up.
- Cold radiators – completely or partially cold, or have cold spots.
- Slow heating – central heating takes a long time to warm up.
- Frequent bleeding – radiators often need to be bled of air.
- No hot water – caused by blocked pipes and heat exchangers.
- Pump failures – repeated breakdowns of the heating pump.
- Dirty water – radiator water appears very dirty or sludgy.
- Warm header tank – central heating header tank is unexpectedly warm

Need power flush advice in Derby?
Our Power Flushing advisors are always happy to help.
To get expert advice with choosing the best heating solution for your home, please call today on 01332 916 226
(Monday – Sunday 7am – 8pm).
Before Power Flushing

Before:
Cold spots on radiators
Noisy pipes and poor circulation
Boiler struggling to heat the home
After Power Flushing

After:
Even, reliable heat across all rooms
Quieter, smoother operation
Lower heating bills and fewer breakdowns
Frequently Asked Questions
How does a power flush work in a central heating system?
A power flush involves connecting a specialist pumping unit to your central heating system. Using high-strength cleaning chemicals, the pump forces water through your radiators, pipework, and boiler at high speed. This dislodges and removes sludge, rust, and limescale build-up, leaving your system clean and running more efficiently.
What equipment is used during a power flush?
Power flushing uses a high-powered pump, often connected to your system via a radiator or the boiler’s circulation point. Alongside the pump, chemical cleaners and inhibitors are added to break down sludge and prevent future corrosion. As Derby-based power flush specialists, we use the latest equipment to ensure a thorough clean every time.
Can you have a power flush with a combi boiler?
Yes, power flushing is completely safe for combination boilers when carried out by a qualified heating engineer. In fact, it’s especially beneficial for combi systems, which can become blocked or inefficient due to sludge build-up. Our experienced team in Derby regularly performs power flushes on combi boiler systems.
Can micro bore pipes be power flushed?
Yes, but with caution. Micro bore pipework (typically 8mm or 10mm pipes) can be more susceptible to blockages and may not always respond well to high flow rates. As Derby-based heating professionals, we assess the system beforehand and use adjusted flow rates and chemical concentrations suitable for micro bore systems.
Will a power flush improve my heating performance?
Absolutely. A successful power flush restores full water circulation through radiators and pipework, eliminating cold spots, reducing boiler strain, and helping your home heat up faster and more evenly. It can also lead to lower energy bills and a longer lifespan for your boiler.
Is power flushing safe for all heating systems?
Yes, power flushing is a non-invasive and proven method of central heating maintenance. When carried out by experienced engineers using the correct tools and flow rates, it is completely safe for all types of systems, including older ones. We always conduct a system health check before beginning the process to ensure compatibility.
How long does a power flush take to complete?
A standard power flush typically takes between 4 to 8 hours, depending on the size of the property and the condition of the system. Larger homes or heavily sludged systems may take longer. We always aim to complete the job with minimal disruption and maximum results.
Areas Covered
We offer central heating power flushing across Derby and all surrounding towns. Don’t wait for the chill to set in. Call now and let our trusted engineers get your heating back on track — quickly and hassle-free. Full list of areas served is below:
Allestree, Alvaston, Ashbourne, Belper, Borrowash, Castle Donnington, Chesterfield, Chellaston, Chaddesden, Derby, Derbyshire, Duffield, East Midlands, Heanor, Heatherton Village, Ilkeston, Kilburn, Littleover, Mackworth, Matlock, Melbourne, Mickleover, Oakwood, Repton, Ripley, Sandiacre, Sawley, Sinfin, Spondon, Stenson Fields, Willington