Power Flushing

Book Appointment
See Services


Plumbing & heating specialists
Call us now

Central Heating Power Flushing

There’s no denying that central heating is hugely important, which is why maintenance is key. Though central heating systems tend to work relatively well on their own, occasionally professional input is required. This is where our central heating power flushing service comes in. At Grand Union Plumbing & Heating, we offer professional power flushing services to remove blockages, sludge, fix noisy radiators and remove cold spots within your central heating system. Sludge can build up in radiators over time, causing cold patches and radiator noise. This is something that power flushing can solve. We use the best power flush chemicals and expert techniques to remove debris in the system. This improves the efficiency and effectiveness of the radiators, and ensures the central heating system is working to the best of its ability.

Though some power flushing services involve forcing high pressure water though the system, ours does not. This technique can cause leaks and damage, which is why our service operates at the same temperature as your central heating system. It collects dirt by disturbing the iron oxide in the system and collecting it through multiple filters.

Worcester Bosch Boiler Installation in Milton Keynes
Mitch Moxon

Professional Power Flushing Service

You don’t need to worry about the British Gas power flush cost, as our professional power flushing service takes care of everything. This includes:

  • Connecting flushing kit and filters to your central heating system.

  • Adding a cleansing agent to the system.

  • Turning on each radiator individually.

  • Operating a circulating pump to ensure all sludge is collected by the filtration system.

  • Adding an inhibitor to the system to prevent internal corrosion.

We can also install a magnetic cleaning filter permanently into your system which will pick up any magnetic and non magnetic debris.

Book Appointment

Central Heating Power Flush Near Me

Don’t underestimate the importance of power flushing, as there are a tonne of benefits that come having it done. Similarly, there are implications if you do not. Though you will have the additional cost of power flushing central heating system, this is a cost that’s well worth paying when you consider the many advantages it brings. If you have noticed cold areas on your radiators, there is a high chance that debris and sludge has built up over time. This will impact how well the central heating system works, but power flushing can keep things moving and ensure your home is getting the heat you require. Power flushing can also increase the longevity of your central heating system and radiators, as those that are looked after tend to last longer and don’t need replacing or repairing as soon. This is because sludge is removed and small problems are resolved before they worsen.

By choosing Grand Union Plumbing & Heating, you don’t need to worry about breaking the bank or spending too much on a radiator power flush cost. We offer an affordable service and keep our heating power flush costs below our competitors. We charge a flat rate of £350 + VAT for power flushing up to 12 radiators. To find out more about power flushing or any of our other services, get in touch with the Grand Union Plumbing & Heating team on 01908 034194 or online.

Any questions?

If you are looking for a heating engineer within the Milton Keynes area for anything from boiler installations to fixing a tap, or would like some friendly advice please call Mitch directly today on 01908 034194

View more contact info

Areas we cover

  • Aylesbury
  • Bedford
  • Leighton Buzzard
  • Northampton
  • Olney
  • Towcester
  • Woburn Sands
Call us

What Our Customers Say

It’s not very often that you find a quality tradesperson who is reliable, honest, and competitive on his pricing. Mitch has done a number of jobs in our house, including installing a new boiler, water tank and radiators. All to a brilliant standard. I will happily recommend Mitch and Grand Union Plumbing!


Very happy with the service I have received, the service was prompt, efficient and professional. Yes, I would use again.

Clare Price

Amazing work and attention to detail and Mitch is a great person to work with

Made in Sud Pizzeria

Very friendly service. On-time and very professional. Also very careful about safety during the current COVID outbreak.

Andrew Robinson

Mitch is super friendly and professional, happy to give advice and he’s done loads of work for me.

G Man

Highly recommended, would use again

Mandi Willett

Highly recommend Mitch. Polite, professional, on time. Great service.

Susan B

Mitch replaced our boiler and ran new pipework, plus relocated some radiators. He did a brilliant job and I wouldn’t hesitate to recommend him! He was punctual, helpful and polite.

Suzanne Simmons

I had a new bathroom fitted by Mitch. He was absolutely excellent. He was polite, tidy and did an exceptional job. Reasonably priced too. 100% recommend.


Excellent service. I contacted them for a boiler repair. They responded within hours with prices. Once they confirmed part availability, they fitted within days.  Very efficient, great service and I liked their clear pricing.

Definitely recommend & I will be booking my annual service with them in future.

Well done!

Sheena Mac

Grand Union replaced our central heating system and in doing so we requested that it be relocated from the airing cupboard into the Garage.  The work was completed professionally & on time with the relocated pipework like a work of art, very neat and orderly.  I would have no issue with recommending Grand Union, and will certainly be using them for all our gas & plumbing needs.


I have called Mitch out twice since moving into our new house a month ago. Both times he has managed to fit in an appointment fairly quickly to resolve our issues. He has been professional and friendly, offering advice on other issues that I have seen. I would definitely recommend his services.

Simon Edwards

We have used Grand Union Plumbing several times as we had a really tricky fault. We found Mitch to be really excellent. Very happy to recommend, 10/10

Annette McDade

Called Mitch out on very short notice, extremely reliable and great rates, would highly recommend Grand Union Plumbing and Heating. Also provided advice with other queries aside from the job at hand- with no reluctance. Great service, thank you for your hard work and honesty Mitch.

Dushan Gnanakumar
Great service, polite, attention to detail. Would highly recommend.
Ajvinder Dhatt
Had a leak that needed fixing asap and Mitch gave me advice over the phone to deal with it until he could get to me, then came out within the hour on a weekend! Would highly recommend
Hannah Manners
Great company would highly recommend for any heating & plumbing issues
Terry Adolpho

Definitely recommend these guys. Had a job done by them and they wasted no time to get it done and made sure I was completely happy before any payments. Nowadays companies just want to rush and take your money. Big thumps up

Tevaugh Grant
We always use Grand Union for serving and any other unforseen problems. The service and professionalism is 1st class. Would definitely recommend!!
Stephanie Horne
A great company to do business with… I used them recently for an emergency with a domestic heating system which was rectified very efficiently. A second problem (some months later) and there was no decision to make, called them and they sorted it in no time with minimum fuss, mess and very reasonably priced.
Trevor Gordon

Have used Grand Union twice now. They are very quick to respond to enquiries, reasonably priced, tidy workers and very friendly. I can’t fault them. Definitely my go to guys now for any plumbing needs.
Highly recommended

Emma Verrall
Great service from Mitch. Have used a few times for boiler service, repairs and outdoor tap installation. Always very prompt service, turns up on time and reasonable prices. Would definitely recommend!
Jon Hood

I found Grand Union Plumbing through the Gas Safe Register. I had a boiler service and gas safety certificate. Mitchell was very professional and the prices were very reasonable. I would definitely recommend and use again.

Rebecca Hughes
Mitch was very helpful when fitting my new boiler – he was very fair about price and I couldn’t recommend Mitch enough. Thanks Mitch!
Reece Hussain


Use our calendar appointment request form and we will confirm back to you as soon as we can! We look forward to hearing from you.

Request appointment
Call us

Request a call back

If you have any questions regarding our services, would like to arrange a quotation or would like to book a call out please contact us using the form below. You can also request an appointment through our contact form. We look forward to hearing from you!