Grand Union Plumbing & Heating is an independent local tradesperson covering Milton Keynes.

1. AAnn Lunnon★★★★★

   Brilliant ! Very nice pleasant young man did a shower replacement installation , has done a great job , we had 6 plumbers walk through our door that couldn???t find a solution to our problem , till Mitchell walked through the door and within 2 minutes gave us two simple options whereas the others were looking at doing a whole new bathroom , thank goodness for Mitchell and Grand Union .

   Google review · 23 Jul 2026
2. KKevin Green★★★★★

   Grand Union have installed a new bathroom in my 1 bed house. The workmen were friendly, trustworthy, very professional and their work is of a high standard. I'm delighted with the end result which is a high quality finish. Also, follow-up for small tweaks after the install were organised and actioned efficiently. Also, their contact at reception was friendly and helpful throughout the process. I would recommend this company.

   Google review · 6 May 2026
3. PPwint Thi Han★★★★★

   I recently had a new water softener installed by Grand Union Plumbing, and I???m so happy with the whole experience! After dealing with other plumbers who either said my softener was too big or suggested awkward setups that would waste space, I was fed up and decided to find a reliable company online. That???s how I found Grand Union and I???m so glad I did. From the very first call, everything was smooth and professional. They asked me to upload photos of the job, sent SMS updates when the engineer was on the way, and arrived right on time. Mitchell was the engineer who came, and he was just fantastic. He was friendly, polite, and super respectful of our home. From the very first site visit he even took his shoes off before coming in without me asking! The installation was done efficiently, neatly, and with so much attention to detail. He even wiped footprints off my tiles that he???d made after the installation! How often does that happen? He gave great advice on where to place the softener and single-handedly modified the under-sink plumbing, cut the shelf, and got everything installed perfectly. Within a few hours, our water was softened, and everything looked neat and tidy. I honestly can???t recommend Grand Union and Mitchell enough. It???s such a relief to meet someone who???s not just highly skilled but also genuinely friendly. It made the whole process so easy and pleasant. I???m even thinking of getting them to do my annual boiler check!

   Google review · 15 Dec 2025
4. IIgor★★★★★

   We recently had a visit of an engineer from Grand Union Plumbing and Heating to address a boiler leak issue. The engineer arrived promptly and carried out a thorough assessment of the fault. After identifying the defective part, the repair was completed within just one day of the initial visit. Throughout the process, the engineer was friendly, positive, and highly professional. They took the time to explain everything clearly, which was greatly appreciated. Since the repair, the boiler has been functioning good. Highly recommended for their quick response, excellent service, and approachable attitude.

   Google review · 28 Sept 2025
5. MMariam Hussain★★★★★

   Fantastic bathroom renovation - highly recommend Grand Union Plumbing & Heating! A big thank you to Glen and the team for providing an excellent service throughout the whole process. Glen worked with us to plan the bathroom space to our budget & we???re super pleased with the final result of our bathroom installation. A big shout out & thanks to both Connor and Luka who did a fantastic job in transforming the space into a modern-day bathroom. They were both punctual, hard working, skilled and kept us updated on the status of the renovation work throughout the 2 weeks. Sam, also did a terrific job with the tile work. Looking forward to working with Glen & the team on future projects and would definitely recommend the company to family and friends.

   Google review · 24 Sept 2025

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