Heating & Heating Engineers

Central Heating Flush

If your heating system is experiencing cold spots, noisy radiators, or frequent breakdowns, a central heating flush could be the solution you need. Our professional heating engineers use a power flush machine that circulates high-pressure clean water and cleaning agents to remove debris, rust, and sludge build-up. This improves energy efficiency and system reliability and reduces the risk of boiler breakdowns..

Benefits of a Central Heating Flush

  • Improved energy efficiency.
  • Better system reliability.
  • Potentially lower energy bills.
  • Reduced risk of boiler breakdown.
  • Could increase lifespan of heating system.
  • Radiators may warm up more quickly.
  • Better quality heating and hot water.
  • Reduced noise from boiler and heating system.

What does a central heating power flush entail?

Before starting the flush, our experienced gas safe registered engineers will carefully inspect your heating system to ensure that the flush is the best course of action to improve its efficiency. This includes firing up your boiler and checking all radiators for cold spots. We understand that you value your home, so we take great care to protect your property by placing dust sheets over carpets and furniture.

The first step of power flushing requires using flushing chemicals, including a non-acidic debris mobiliser, scale and corrosion inhibitor, boiler noise silencer, sealer, and neutralising crystals. These cleaning chemicals are added to the power flushing machine, which is attached to the boiler using a pump. The first flush takes around 20 minutes, during which time we circulate the cleaning agents through your heating system to remove debris, rust, and sludge build up.

Following our initial flush, we focus on each radiator individually, isolating and flushing it on its own. Any lingering sludge is loosened with the aid of a rubber mallet, and then, a second radiator-specific flush is carried out. To ensure the thorough cleaning of all radiators, we reverse the fluid flow on each one until the water runs clear. Lastly, we execute a comprehensive flush to guarantee the full removal of any accumulated sludge.

The final step is to add an inhibitor that is circulated through the system before the radiator valves are refitted. This inhibitor helps prevent the future build-up of sludge and debris, protecting your heating appliances and prolonging their lifespan.

If successful, you will notice an immediate improvement in the temperature of your radiators. Our heating flush service can also help reduce noise from your boiler and heating system and improve the quality of your heating and hot water.

How can flushing a central heating system help?

Over time, debris and sludge can accumulate inside your pipes and radiators, causing blockages and reducing the efficiency of your heating system. By opting for our power flush service, you can remove this build up and allow water to flow more easily through the pipes, reducing the effort required by the boiler and improving the efficiency of your heating system.

By improving the efficiency of your heating system, you can potentially reduce your energy bills and increase the longevity of your system overall.

When do I need a heating flush?

If you have noticed cold spots in your radiators, cold at the bottom and warm at the top, or one or more radiators that are not working, a flush may help resolve the problem.

Over time, debris and sludge can accumulate inside your pipes and radiators, causing blockages and reducing the efficiency of your heating system. Our heating flush and power flush service can help remove this build up, allowing water to flow more easily through the pipes and improving the performance of your heating system.

We understand that having a reliable and efficient heating system is essential for your home. That’s why we offer a comprehensive power flush service to help you keep your heating system in top condition. Our experienced engineers will assess your heating system and determine the best course of action to improve its efficiency, saving you money in the long run.

Signs that your system needs a central heating flush:

  • Cold spots on radiators.
  • Cold radiators but hot pipes.
  • Radiators that require regular bleeding.
  • Dirty water (or no water) when radiators are bled.
  • Noisy boiler or radiators.
  • Radiator leaks.
  • Frequent breakdowns.
  • Boiler constantly needs restarting.
  • Central heating take a long time to warm up.
  • Some radiators struggle to heat up.

A Money Saving Service:

Central heating isn’t just about maintaining a comfortable home environment throughout the year; it’s also an effective way to save money and enhance the longevity of your heating system components.

Choosing central heating isn’t just a comfort decision. It’s also an economic one, as it can augment your heating system’s efficiency, decreasing your fuel bills by as much as 30%. This happens because central heating uniformly spreads heat across your house, minimising the need for other potentially costly heating methods — a perfect recipe for long-term savings.

There’s more. Central heating can also significantly extend the lifespan of key heating system components like boilers, radiators, pipes, and fittings. By preserving a steady temperature within your home, central heating lessens the strain on these vital components across time; this wards off premature degradation and ensures their longevity.

We firmly grasp the significance of a reliable, efficient heating system in any home. We acknowledge that your residence is your haven that needs to be warm, cosy, and welcoming. That’s exactly why we always prioritise your unique needs and preferences by adopting a customer-centric approach to our services and ensuring our offerings match your requirements.

How frequently should I get a heating flush?

According to experts, a power flush should be carried out every five to six years. However, this can vary depending on the age of your boiler and the water hardness in your local area. Hard water can lead to mineral build up and corrosion, which can reduce the efficiency of your heating system and cause damage over time.

How much does a heating flush cost?

The cost of a flush can vary depending on the size of your property and the number of radiators. On average, the cost ranges from £300 to £500. However, we understand that every home is unique, so we provide a full fixed quotation after assessing your specific requirements. This ensures that you receive a fair and transparent price for the service.

How long does a heating flush take?

The duration of a flush can vary depending on the number of radiators and the amount of dirt or sludge present in the system. For a typical three-bedroom semi-detached house, assume around 6 hours.

Why hire a professional?

We understand that having a reliable and efficient heating system is essential for your home. If you are experiencing any issues with your central heating system, it’s best to call a professional instead of trying to fix it yourself. Our team of experienced engineers can assess your heating system and determine the best course of action to improve its efficiency.

Investing in a heating flush can benefit you in several ways. It can improve the quality of your heating and hot water, reduce noise from and prolong the life of your boiler and heating system, and lower your energy bills.

Don’t let a poorly functioning heating system disrupt your daily routine. Contact us today on 01502 719726 to discuss your heating flush needs and receive expert advice from our team of professionals.

Transparent and competitive prices

We believe in upfront pricing for most plumbing and heating work. However, in emergency situations where time is of the essence, we may provide estimated figures. Additionally, we offer free, no-obligation on-site consultations for medium and large projects, ensuring you receive accurate quotes.

Clear communication

It’s our priority to always communicate clearly and guide you through the work we’re undertaking. We’ll explain the reasons behind each step, allowing you to make informed decisions based on your budget and circumstances.

On-time service

We respect your valuable time. That’s why we provide a 4-hour appointment window, ensuring minimal disruption to your schedule. In the rare occurrence of any unforeseen delays, we’ll promptly inform you and provide an updated time of arrival.


Your satisfaction matters to us. In addition to any manufacturer guarantees, we provide our own one-year workmanship warranty. We stand by the quality of our work and ensure you receive the necessary support even after the project is completed.

Friendly service

All our staff are committed to providing the highest level of customer service and satisfaction. We’re a family-run company, and maintaining a personal touch with our customers is important to us. We also aim to deliver the same consistent, friendly service every time.

Peace of mind

Your peace of mind is invaluable to us. Rest assured, all our work is fully covered by public liability/indemnity insurance. We also conduct customer reviews after every project, allowing us to continuously improve and maintain our stellar reputation.

Reliable Service

Service: Plumbing pipe repair

Positive: Professionalism, Quality

Great service and very reliable. I will be using them again for any new jobs/projects.


Joe Stiddard-Jenkins

Happy Customer

I have used this company twice now and have been completely both times. I will
definitely go back as and when required.


Superb Plumbing Service

John arrived to sort out our leak very quickly and returned as promised to install the new valve. Friendly, experienced can-do people that are good to deal with.

Andrew Jackman

On the job within a day

Professional and straight to the problem. Ordered the part and fixed promptly . What more could u ask. Used them for a while now on a few properties and haven’t been disappointed. Great price great service. I appreciate their help 100%. Needless to say the number is saved on my phone and will be using again.

John Vry

Fantastic service

Amber heating have recently done some work for us and what can I say, what a fantastic service. I called expecting a delay with getting someone to work on our heating system. The very next day we had one of their experienced engineers in our house. All work was carried out in a Covid safe way with such an attention to detail. So happy to find a reliable heating company. Would recommend to anyone.

Bison EV


Quality workmanship. Well recommended

Andy Wales

Absolutely fantastic service!

Would recommend. 5 star +++
Called and arranged same day service as my boiler was failing to work. Asked for fix and service.
Excellent effective and thorough service checking and adjusting all equipment including boiler plus vents and safety equipment.
No push of parts or equipment renewal, even than an older boiler. Just professional and honest service.

Philip Crisp

So Pleased

So pleased with the service I’ve received from Amber Heating. I called Ally needing two boiler services and he carried these out super quick and kept me updated along the way. Wouldn’t hesitate to use Amber again.

Lizzy Spindler

What better service could you want

Superb service, had them out earlier today and have a small issue and they are coming back out this evening.
What better service could you want.

Andy Wilson

Excellent Service

Excellent service again from Amber phoned at 8.00 am regarding faulty boiler
Technician arrived later in after noon as planned system back in operation within 45 minutes

James Mcloughlin

Top Quality Service!

Josh was absolutely 100% professional and helped me every step of the way with my over complicated air source heat pump when another local company let me down.
He explained everything, how to use it and he even set it up for me.
Highly recommended, thank you Josh!

Daniel N

Professional Service!

Great service, well priced, professional and they fitted me in really quickly.

Rachel Engledew

Amber Heating is THE best plumbing firm

Alister worked ceaselessly to discover what was the cause of the toxic smell in our en-suite and solved the problem. We cannot thank him enough for solving a problem that had blighted our lives for a number of years. Several well-known plumbers came to our property and failed to identify the source of the fumes. If there were ten stars we would use them all.


Highly Recommend Amber Heating

I would highly recommend Amber heating. Always on time always polite and friendly and helpful Staff.
Always do an excellent job.
Thank you.

Christine McDaid

Great Service

It’s not often you get a company that gives such great service and value, but Amber ticks all the boxes. Very friendly and very professional engineers. Will be using them on our next project next year.

Lee Anderson

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