Business & Home

Slash Your Energy Bills Using

Power flush UK

Through our advanced central heating system improvements, we guarantee less energy usage, major savings, and a generous 5-year warranty period.

John Moran
John Moran
2023-04-18
Tom, of Power Flush UK, came out yesterday to power flush our heating system. Prior to his visit we had several radiators which were not heating up and others which only got lukewarm. He did a first class job. The house is now much warmer and the 3 radiators which were the biggest problem are now red hot. He also gave me some excellent advise on how to best operate my system. Tom arrived precisely on time despite travelling nearly 2 hours to get here. There was no mess. I highly recommend them to anyone thinking they need a power flush.
Luke Rose
Luke Rose
2023-02-01
Had a power flush, very polite and professional. Explained everything he was doing as he went along, very tidy. Perfect job.
Simon Miller
Simon Miller
2023-01-31
Hired them to power flush our heating system which is an Air Source Heat Pump system with two sets of manifolds for ground and first floor. Complete flush overall and then each manifold and each element of the manifold along with radiators. Very pleasant guys, on time, explained everything and showed me the dirt from the internal system and then the clean water at the end before providing the new solution of inhibitor, antifreeze etc at the end. Would definitely recommend anyone who has an air source heat system to remove the dirt and freshen up the internal system to improve the heating efficiency.
Sally Taylor
Sally Taylor
2022-12-20
We had a power flush, Absolutely brilliant service, heating want working in my little ones room so we needed someone quick. Prebooked for the new year as everyone was booked up but they had a cancellation and were able to come withing 4 days of me calling. We had a lovely guy called Tom who listened to the issue and what we had previously tried. Tom tried a few things to get the issue we had sorted realised early on that it wasn't working and altered his approach and cleared the blocked pipe we had. Heating works a treat now! Really respectful of our home, wore slippers in the house so he wasn't trailing wet/dirt in the house. Couldn't recommend this service more!
Anna Coupe
Anna Coupe
2022-12-19
I'm really pleased that Tom managed to get my central heating working again by flushing out the radiators and pipes. He did a very thorough, expert job and didn't leave until the heating was working correctly. This firm was recommended by a trustworthy plumber and they did not disappoint! I would recommend them to anyone as they sorted my problem out (radiators not heating up) in one day. All toasty for the winter now! Ben was an excellent communicator and I'm a happy customer.
Paul Routledge
Paul Routledge
2022-12-08
Ben and his team were extremely professional, helpful and knowledgeable. They turned up on the time they said would even though we arranged the appointment many weeks in advance and they drove from Leicestershire to Lincolnshire. Regarding the job itself, they did a great job of flushing our microbore pipes and now the radiators are working perfectly. We can very highly recommend this company.
Jason
Jason
2022-11-13
These guys fixed the problem that others failed to. They went above and beyond cutting out blocked pipes. Look at the pic! They are simply the best.
Chris Cleaver
Chris Cleaver
2022-10-23
Excellent service, good communication, expert operative.
Clinton Woolley
Clinton Woolley
2022-01-10
Power Flush UK attended out house in November 2021, our central heating system was completely blocked with all the radiators stone cold. Ben was great and arranged to bring our appointment forward by a week to get us sorted!. Within a hour or so of them being here our radiator's were starting to clear and get warm again. By the end of the day the system was fully up and running and they even fitted a new pump for me which I had bought previously. Excellent company and very tidy. I would highly recommend this company if you require a power flush on your central heating.
W Chowchilla
W Chowchilla
2021-11-13
Where do I start, very professional on the phone and when they came out to do the job, Ben on the phone was excellent evey helpful, Tom came out to do the work and with his house slippers so no mess been dragged in and out which was a great idea.They came out to rectify a job that SimplyEco carried out fitting a boiler completely mess it up blocked our whole system and left us with no heating or hot water. Tom came and went to work after hours of trying and keeping at it managed to get everything up and running these guy where life savers our heating and water is working better then ever highly recommended great guys.

Are you looking to Warm Up Faster or Pay Less In The Business or At Home?

Commercial Power Flush for business

Business Power flush

OVER 97% 

Of Customers See An ROI

In the first month on Energy Bills

Current Progress
Current Progress
Current Progress
Current Progress

Home Power flush

UP TO 14X 

Efficiency Improvement

Compared to other providers

Current Progress
Current Progress
Current Progress
Current Progress

Try 100% free quote. No Obligation

Try 100% free quote. No Obligation

Does My

System Need A Powerflush?

Knowing whether you need a power flush for your heating system can save you from potential costly repairs in the future. Here are some common signs that suggest you might require a power flush:

  • Cold Radiators: If your radiators are cold at the bottom while warm at the top, this can be an indication of sludge or sediment build-up at the bottom, preventing the full circulation of hot water.
  • Noisy Boiler: Strange noises, such as banging or clanking, coming from your boiler can be a result of build-up causing uneven water distribution.
  • Discoloured Water: When bleeding your radiators, if the water is discoloured or murky, this suggests there might be rust or sludge present in the system.
  • Uneven Heating: If some radiators heat up faster than others, or some remain cold when others are hot, there might be a blockage or circulation issue requiring a power flush.
  • Frequent Venting Required: If you find yourself needing to frequently bleed your radiators to release excess air, this could indicate a circulation problem.
  • Boiler Cut Outs: If your boiler frequently shuts off or needs to be restarted, there might be circulation problems due to blockages.
  • Cold Spots: If you touch your radiator and find cold spots, especially in the center, this can be due to deposits and build-ups inhibiting water flow.
  • Slow Heat-Up: Radiators that take an unusually long time to heat up can be another indication of poor circulation due to blockages.
  • Visible Signs of Rust or Corrosion: Check external pipework and radiator surfaces for signs of corrosion, which can indicate internal issues.
  • Age of the System: If your heating system is old and has never been power flushed, it might benefit from the procedure, even if there aren’t immediate signs of issues.
  • Inefficient System: A noticeable increase in energy bills without a significant change in heating usage can point to an inefficient heating system, possibly due to sediment build-up.

If you observe any of the above signs, it's a good idea to consult with a heating specialist.

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Our Solutions For Your Business

Commercial

Dynamic Flushing

Commercial

De-Scaling & De-Sludging Of Plate Heat Exchangers

Commercial

Buffer vessel cleaning

COMMERCIAL

Direct fired water heater descaling

Our Solutions For Your Home

DOMESTIC

Sludge removal

Domestic

airing cupboard problems

DOMESTIC

cleaning a combi boiler

domestic

small bore or mini more pipework

Explore What Is A Power Flush

in just 2 minutes!

A power flush refers to a process used to clean and maintain the central heating system. Over time, radiators and heating systems can become clogged with sludge, rust, and other debris, which can reduce the efficiency of the system and lead to other problems.

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How

Does Power Flushing Work?

Power Flush UK specialises in revitalising heating systems, using a meticulous four-step process to diagnose, treat, and thoroughly cleanse systems of obstructions and inefficiencies. With our professional approach, we guarantee optimal heating performance, providing customers with both a certificate of cleanliness and a 5-year blockage-free assurance.

Connection


A heating engineer will connect a high flow and low pressure pump to the heating system

Chemical Cleaning

Cleaning chemicals containing sludge breaking enzymes and often a de-scaler are added to flush out any debris or bacteria present in the system

Power

Flush

The chemicals work their way though, breaking down limescale, rust and other debris.

Inhibitor

Added


To ensure no contaminants remain, a clean water flush is performed after the chemical cleaning before adding rust proofing inhibitor.

Certificate

Issued

Water samples before, during and after the process is logged and issued in your certified certificate

Why

Power Flush UK?

Choose Power Flush UK for a thorough, expertly executed heating system revitalisation, ensuring both peak efficiency and a prolonged system lifespan. Benefit from our transparent, competitive pricing and unparalleled guarantees, setting us apart as the top choice in the UK.

Try 100% free quote. No Obligation

5 Year No Blockage Warrantee 

Get your system protected with our 5 year promise. Terms and conditions apply. 

22 Year Proven Track Record

Join our family of satisfied customers who've experienced significant heating improvements and savings.

Detailed Diagnostics

Receive both visual and written evidence detailing the state of your heating system.

Certified Cleanliness

Obtain an official certificate, a seal of guarantee showcasing the pristine inner condition of your system post-flush.

Convenience and Respect

We schedule around your time and ensure your home remains as immaculate as we found it—only with better heating!

Extended Assurance

Enjoy a five-year guarantee against blockages, ensuring your peace of mind.

Affordable Excellence

Get top-tier service at a competitive package price, starting from just £380 for a typical 3-bedroom home—a fraction of what some national suppliers charge!

Expertise You Can Trust

Rely on our trained professionals, committed to providing best-in-class service and lasting results.

Transparent Pricing

No hidden fees or surprise costs—what you see is what you pay.

Eco-Friendly Approach

Benefit from a cleaner system that's not only good for your pocket but also for the environment.

Frequently asked questions

What is Powerflushing?

Powerflushing is purely and simply a way of removing the rust that slowly builds up in your heating system and boiler over time. Water, chemicals, powerflush equipment and an experienced plumber are used to remove the rust and sludge from your central heating. The flow of the machine is reversed from time to time using special three-way valves attached to the flushing pump. This is an extra step to help clean the pipes and radiators to remove cold spots.

Do You Provide A Guarantee?

Yes, we provide a full guarantee. At the end of each job we will post a certificate to you that guarantees your power flush.

Does The Engineer Need To Be Gas Safe Registered?

No. A power flush can be undertaken by an experienced and knowledgeable engineer as we do not touch the gas supply or exhaust vent system.

My boiler bangs or cuts out

The reason that happens is generally one of two things:

1. Your pump has failed or is stuck. The water can’t circulate and therefore the water that is in the heat exchanger will boil very quickly. In some older boilers in particular it takes a while for the thermostat in the boiler to turn the gas off. In modern condensing boilers the thermostats are more sensitive and will extinguish the boiler flame quickly.
2. There is a blockage in the main flow or return pipework, or with the water ways in the boiler heat exchanger which is either completely or partially blocking the flow of water through the boiler – so the water in the boiler starts to boil and make steam again. Hence the popping, hisses and bangs.

Where does the rust in my heating system come from?

If you have seen someone else’s system power flushed you will know what an amazing amount of rust and radiator sludge can come out, in all shapes and sizes. But, contrary to popular belief the vast majority of the sludge that you see does not come from your boiler. Most non-condensing boilers (those installed before 2006) have cast-iron heat exchangers and they, by and large, do not rust. The vast majority or rust and/or sludge in your heating comes from the radiators themselves as they are made from mild-steel.

Why does rust form in the first place?

Water is made of hydrogen and oxygen (one part H and two parts O = H2O). Oxygen is highly reactive and is always looking for somewhere to latch on to instead of the Hydrogen molecule. So, any time it comes across a piece of iron that is ‘bare’, i.e. unprotected, it is going to latch on to that and makes rust (most often Fe2O3). And that’s where rust comes from. Power flushing radiators will remove that.

How do I protect my heating system after it is cleaned?

Once you have had a specialist in to do the work for you, the best way of protecting your system is to have the heating system regularly topped upped with corrosion inhibitor. These stop the rust forming by adding a protective molecule to any exposed bare iron. That molecule (most often a form of another metal called molybdenum) parks in the place that the oxygen molecule would want to be. And the result is no rust. The only caveat to this is if your heating system has a design flaw in it and is pulling in fresh water all the time.

Why powerflush?

Yes, there are other ways of cleaning your central heating system, but they are nowhere near as effective as using a the right machine when it is used by a competent and experienced heating engineer. You can add any chemical cleaner in to the system, leave for up to four weeks (Warning:careful here if you have micro-bore pipework) and then open up the system drain-cocks and let the water run out.
When you do that the only force moving the water out of the system is gravity and that will not pick up any larger bits of rust. Those will be left in nooks and crannies.
 

Can A Power Flush Fix Cold Radiators?

Yes, a powerflush can fix cold radiators. Particularly if they are cold at the bottom.  Sludge collects in a hump in the bottom of radiators so if your radiator is cold in the middle at the bottom it can be a sign that sludge is building up.  Other places that sludge commonly builds up are in the airing cupboard and at the manifolds in microbore systems.

Can micro-bore pipework be powerflushed?

The short answer is “Yes, it can”, but with a great deal of care. 10mm microbore systems need to be approached in a very different way to standard sized pipework. 8mm microbore systems need a lot of careful thought before flushing out. Microbore pipework was first commonly introduced in the 1970’s in an attempt to reduce the amount of copper needed to install a heating system.

Testimonials

See why our customers keep returning to us! 

John Moran
John Moran
2023-04-18
Tom, of Power Flush UK, came out yesterday to power flush our heating system. Prior to his visit we had several radiators which were not heating up and others which only got lukewarm. He did a first class job. The house is now much warmer and the 3 radiators which were the biggest problem are now red hot. He also gave me some excellent advise on how to best operate my system. Tom arrived precisely on time despite travelling nearly 2 hours to get here. There was no mess. I highly recommend them to anyone thinking they need a power flush.
Luke Rose
Luke Rose
2023-02-01
Had a power flush, very polite and professional. Explained everything he was doing as he went along, very tidy. Perfect job.
Simon Miller
Simon Miller
2023-01-31
Hired them to power flush our heating system which is an Air Source Heat Pump system with two sets of manifolds for ground and first floor. Complete flush overall and then each manifold and each element of the manifold along with radiators. Very pleasant guys, on time, explained everything and showed me the dirt from the internal system and then the clean water at the end before providing the new solution of inhibitor, antifreeze etc at the end. Would definitely recommend anyone who has an air source heat system to remove the dirt and freshen up the internal system to improve the heating efficiency.
Sally Taylor
Sally Taylor
2022-12-20
We had a power flush, Absolutely brilliant service, heating want working in my little ones room so we needed someone quick. Prebooked for the new year as everyone was booked up but they had a cancellation and were able to come withing 4 days of me calling. We had a lovely guy called Tom who listened to the issue and what we had previously tried. Tom tried a few things to get the issue we had sorted realised early on that it wasn't working and altered his approach and cleared the blocked pipe we had. Heating works a treat now! Really respectful of our home, wore slippers in the house so he wasn't trailing wet/dirt in the house. Couldn't recommend this service more!
Anna Coupe
Anna Coupe
2022-12-19
I'm really pleased that Tom managed to get my central heating working again by flushing out the radiators and pipes. He did a very thorough, expert job and didn't leave until the heating was working correctly. This firm was recommended by a trustworthy plumber and they did not disappoint! I would recommend them to anyone as they sorted my problem out (radiators not heating up) in one day. All toasty for the winter now! Ben was an excellent communicator and I'm a happy customer.
Paul Routledge
Paul Routledge
2022-12-08
Ben and his team were extremely professional, helpful and knowledgeable. They turned up on the time they said would even though we arranged the appointment many weeks in advance and they drove from Leicestershire to Lincolnshire. Regarding the job itself, they did a great job of flushing our microbore pipes and now the radiators are working perfectly. We can very highly recommend this company.
Jason
Jason
2022-11-13
These guys fixed the problem that others failed to. They went above and beyond cutting out blocked pipes. Look at the pic! They are simply the best.
Chris Cleaver
Chris Cleaver
2022-10-23
Excellent service, good communication, expert operative.
Clinton Woolley
Clinton Woolley
2022-01-10
Power Flush UK attended out house in November 2021, our central heating system was completely blocked with all the radiators stone cold. Ben was great and arranged to bring our appointment forward by a week to get us sorted!. Within a hour or so of them being here our radiator's were starting to clear and get warm again. By the end of the day the system was fully up and running and they even fitted a new pump for me which I had bought previously. Excellent company and very tidy. I would highly recommend this company if you require a power flush on your central heating.
W Chowchilla
W Chowchilla
2021-11-13
Where do I start, very professional on the phone and when they came out to do the job, Ben on the phone was excellent evey helpful, Tom came out to do the work and with his house slippers so no mess been dragged in and out which was a great idea.They came out to rectify a job that SimplyEco carried out fitting a boiler completely mess it up blocked our whole system and left us with no heating or hot water. Tom came and went to work after hours of trying and keeping at it managed to get everything up and running these guy where life savers our heating and water is working better then ever highly recommended great guys.