Boiler Servicing

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Plumbing & heating specialists
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We’re experts at servicing boilers

You would expect us to say that boiler servicing is vital, but we say it for good reason. Many people underestimate the importance of getting their boiler serviced; they assume that boilers take care of themselves and don’t need professional attention. However, though they will keep doing their job, just like a car they need care and attention on a regular basis to continue working well. Having your boiler checked by a qualified boiler service engineer on an annual basis will ensure it continues to operate safely AND efficiently, and will protect you from unnecessary escalating energy costs.

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Boiler Servicing in Milton Keynes
Boiler Servicing in Milton Keynes

Annual Boiler Service: Why a Gas Boiler Service is Important

Most manufacturers, for example Worcester, Atlantic, Ideal, Vaillant, Viessmann, Baxi, and Potterton, require an annual service on new boiler installations to validate their warranty. However, it needs to be carried out by a qualified engineer, else there’s a high chance the warranty will not be valid, and this in turn could lead to unnecessary costly bills in the future.

However, that’s not the only reason boiler servicing is important. A boiler that is not checked regularly may start to leak poisonous gasses, undetected. You will not know this is happening, which is clearly extremely dangerous. But an annual boiler service will identify such a problem, so you can then get it fixed. Plus it will also ensure your boiler continues to operate efficiently, and prevent it from using more energy than necessary and increasing your fuel bill.

Boiler Servicing – Covering Milton Keynes and Surrounding Areas

Grand Union Plumbing & Heating offer full boiler servicing in and around Milton Keynes. We are a Gas Safe registered business, which means our engineers have a Gas Safe ID and are properly qualified to carry out the work.

Our boiler service costs £72 including VAT, and includes:

  • Inspection of boiler controls and safety devices for correct operation

  • Inspection of burner, heat exchanger, and other components for corrosion and water leaks

  • Checking the integrity of casing seals and main components

  • Flue gas analysis to ensure your boiler is burning correctly

  • Draining and cleaning of the condensate discharge tap

  • Completed checklist providing proof your boiler has been serviced

How Do I Book?

To book an appointment please give Mitch a call on 01908 034 194 or press the Book Appointment button below.

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Hot Water Tank Servicing

It is also recommended that your unvented hot water tank is serviced annually to ensure it is operating correctly and safely. Milton Keynes and its surrounds is a hard water area, so it is particularly important that inspections are carried out to check for broken controls and safety valves due to limescale.

Our hot water tank service costs £36 including VAT, and includes:

  • Megaflo Cylinder Servicing

  • Unvented Cylinder Service

Gas Boiler Servicing Near Me

For more information on boiler servicing in and around Milton Keynes, or to book a gas boiler service, please call 01908 034 194.

See areas we cover

Boiler Servicing – Our Portfolio

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!


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


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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!