One radiator isn’t getting hot?

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One radiator isn’t getting hot?

When you find out that one radiator not warming up, there are several things you can do to relieve the stress and hopefully fix the problem. Our guide offers some of the essential steps you should take. Read on to find out steps to troubleshoot the problem.

Check your radiator valves

If you have only one cold radiator and heat gets into other radiator’s system, a good starting point for solving the problem would be to start with the radiator itself. Make sure all valves of the radiator are open. It is also worth determining if the radiator is cold everywhere. Furthermore, check if the heat is entering them from above, below, or even through the surrounding pipes.

Another possible cause are thermostatic valves. Thermostatic heat valves may lock making the radiator to cease functioning. If you think that may be the issue, replace the valves or contact a qualified heating engineer to do the work for you.

Find out if there is airlock and bleed your radiator.

Trapped air takes up space at the top of your radiator. If a radiator heats up at the bottom and not top, this is an indicator that air is inside. Air can get stuck inside your radiators making them warm at the bottom, but cold at the top. You may have to bleed the radiator if this happens. An air trap at the top of your radiator prevents the proper circulation of hot water.

Check if the system requires power flushing

If all these issues do not match your radiator problem, try a power flushing service. Power flushing involves the removal of sludge and debris trapped over time in your central heating system. One indication that you might need a power flush is when a radiator only warms up at the top. The sludge at the base of your radiator prevents even surface heating.

Contact a local heating company near you

Identifying the source of the problem may be difficult if a radiator is not heating up, but sometimes the steps above will lead you to the right diagnosis. Your boiler, plumbing or piping may even cause the problem.

The safest thing to do is to call a heating technician. Whatever the issue, Grand Union can diagnose it correctly and repair it. If you need a heating engineer in the Milton Keynes area, please contact our team. We will assist you in identifying the problem and offer the best quotation. We look forward to restoring your radiator to full working conditions as fast as possible.

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

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Areas we cover

  • Aylesbury
  • Bedford
  • Leighton Buzzard
  • Northampton
  • Olney
  • Towcester
  • Woburn Sands
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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!

S C

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.

Louise

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.

Ryan

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

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