Boiler Servicing

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We’re experts at boiler servicing

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.

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Boiler Servicing – Our Portfolio

Are you a landlord looking for a plumber?

If you’re a landlord and you need experienced and swift action taken to replace an old cranky boiler, please don’t hesitate to give us a ring on 01908 034194. We’ll work quickly to get the problem resolved and keep your tenants happy.

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Areas we cover

  • Aylesbury
  • Bedford
  • Leighton Buzzard
  • Northampton
  • Olney
  • Towcester
  • Woburn Sands
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What Our Customers Say

I’ve used Grand Union 3 times and every time the service is excellent and the price very reasonable. Engineers are very good at letting you know what they are doing and there are no hidden charges. They even managed to do a job at short notice. They work tidily and even followed up with a message to check my heating was still ok the following day. Highly recommend

Claire Edwards

Excellent service from Mitch!
Responsive, courteous and informative.
Work swiftly done too, with clear explanations throughout.
Thanks again, Mitch.

Used grand Union plumbing to service my boiler and couldn’t of asked for a better service. They were on time and actioned the job in a clean and professional manner. Very nice to see they were operating in a covid secure manner without being promoted too

100% will be used again in the future

Tom Holland
Highly recommend Grand Union Plumbing & Heating. We called Mitch after getting nowhere with the first 2 heating engineers we contacted. In contrast to them, Mitch quickly diagnosed the fault, ordered the part and replaced. Totally professional and good value for money.
Mike Kennedy
I found Grand Union on local heroes. Id given up on British gas and NPower/homeserve.
Mitch was honest from the get go. Came round and gave me quote got the worl done within a couple of days once parts came.
Very highly professional. Very friendly. Perfect on time. Clean. Safe. What else can I say. I will be using only Grand Union here on and cannot recommend enough.
Amazing service Mitch Andy and Cory all amazing guys came out Xmas Eve went above and beyond to get me sorted and were amazing with my children letting them watch and so polite couldn’t recommend highly enough 10/10
Steaves Jen
Highly recommend the team to fix any plumbing or heating issues. They arrived as scheduled and it was great to have such a high standard of service. Will definitely be my contact for anymore plumbing issues and for boiler services.
Owen Thomas
Contacted them after having three boiler services being cancelled by a Big Five company only resulting to a wait till May for the 4th appointment. From the first day I contacted them Andy came around in a week’s time and provided excellent customer service and serviced our boiler very efficiently and quickly. The appointment ran a bit late due to another emergency call but both Mitch and Andy were apologetic and polite. Appreciate there excellent customer service on top of a job done well. Will be calling on them in future again for sure. Thank you.
Kaanita Khan
Would highly recommend Grand Union plumbing, really knowledgeable team. They were able to identify the problem with our heating pressure gauge, and release valve really quickly and stop our leak straight away. Thanks
Emma Thompson
Love these guys, have been using them for years and will keep using them for years in the future. They’re helpful, do amazing work each and every time, and are respectful of your home, both Andy and Cory took their shoes off when they came into the house recently, Cory put down dust sheets when he was fitting my new radiator in the bathroom (tiled floor wipes clean, but still put it down).
100% recommend them for any and all plumbing works and looking forward to having them do more work for me later in the year.
Ian Kockelbergh

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!


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!