Grand Union Plumbing & Heating Reviews 263

TrustScore 5 out of 5

4.9

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Review summary

Created with AI, based on recent reviews

Reviewers overwhelmingly had a great experience with this company. Customers consistently praise the service for being professional, efficient, and reliable, often highlighting the quick and effective resolution of issues. Many people appreciate the clear communication regarding arrival times and the overall organization of the company. The staff is frequently described as friendly, professional, and knowledgeable, with consumers noting their polite demeanor and tidy work. However, some customers also mentioned that while the emergency service is advertised as 24-hour, it wasn't always available. A few other people felt that a plumber suggested a full replacement for a kitchen tap without properly assessing if a simpler repair was possible, and also noted that old parts were removed, which customers found concerning.

What people talk about most

Service

Reviewers highlight positive aspects of service, consistently praising its efficiency, professionalism, and... See more

Staff

Reviewers consistently express satisfaction with the staff, highlighting their professionalism, efficiency,... See more

Reviews shaping this summary

Rated 5 out of 5 stars

Received a text about 10 minutes before Mitch arrived. Completed the job, made sure everything was working & even recommended to turn the Boiler dial down to reduce energy costs. Very pleased with the... See more

Rated 5 out of 5 stars

Excellent company, well organised and efficient. Have used Grand Union Plumbing twice now and on each occasion have been very happy with the work carried out. Both Conner and Marco were both very fri... See more

Rated 5 out of 5 stars

I have been using GU Plumbing & Heating for some years now and they never fail to provide a first class service from start to finish. It is so easy to book an appointment and I am kept informed includ... See more

Rated 5 out of 5 stars

Had a full boiler refit. Grand Union quoted me a better price than British Gas, and over 3 days of power flushing, fitting, and Hive setup, it was a stress free process. Connor was friendly,... See more


Company details

  1. Central Heating Service
  2. Boiler supplier
  3. Gas engineer
  4. Heating service
  5. Plumber

Written by the company

Grand Union Plumbing & Heating is a premier plumbing and heating service provider based in Milton Keynes. The company is staffed by a team of certified and experienced professionals committed to delivering a broad range of services, characterized by excellence and customer satisfaction. They specialise in boiler repair, installation and servicing, and custom installations of bathrooms, utilizing high-quality materials and the latest technology to ensure durable, efficient outcomes. Known for reliable, prompt service and transparent pricing, Grand Union Plumbing & Heating ensures a smooth and satisfactory project experience for all clients. Their meticulous attention to detail and thorough aftercare have garnered high praise on platforms like Google and Trustpilot. For residents and businesses in Milton Keynes seeking dependable, professional plumbing and heating solutions, Grand Union Plumbing & Heating stands as the top choice, dedicated to exceeding expectations and delivering superior results.


Contact info

4.9

Excellent

TrustScore 5 out of 5

263 reviews

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How this company uses Trustpilot

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Rated 5 out of 5 stars

Brilliant works

We don't have hot water occasionally. Contact them by leaving a message at 0830, get a call back at 0920. Booked an inspection on the same day, and they come and fix it before 1pm. They explain the reasons causing the issue and what could happened in the future.

20 March 2026
Unprompted review
Rated 5 out of 5 stars

Wouldnt use anyone else

I have been using GU Plumbing & Heating for some years now and they never fail to provide a first class service from start to finish. It is so easy to book an appointment and I am kept informed including a call when they are on their way. The work carried out is always faultless and is followed up with a work report. The area being worked is always left clean and tidy. All the guys I have ever met are friendly and professional and always look neat and tidy. Wouldn't use anyone else for all my plumbing needs including boiler services.

17 February 2026
Unprompted review
Rated 5 out of 5 stars

Exceptional service

Exceptional service, just can’t fault the way we have been looked after - hot water cylinder replacement, lots of pipework, shower replacement and tiling.

Fantastic from start to finish - fully recommended.

28 January 2026
Unprompted review
Rated 5 out of 5 stars

Great local business

Had a full boiler refit. Grand Union quoted me a better price than British Gas, and over 3 days of power flushing, fitting, and Hive setup, it was a stress free process.

Connor was friendly, professional and efficient, doing all the work (on his own throughout) with zero fuss.

Admin process is also great. Easy to contact Mitch or Lauren, pay invoices and get details of the work electronically. It is a very professionally run business with top notch customer service.

After care service is also great and always happy to help, and their Home Cover contracts are great value.

I would highly recommend Grand Union to anyone in Milton Keynes for any of their plumbing and heating needs!

29 January 2026
Unprompted review
Rated 5 out of 5 stars

Adam is a master of his craft

Adam is a master of his craft. He diagnosed the issue with my heating system within 5 minutes of attending and fixed the system within the hour. Would highly recommend

27 January 2026
Unprompted review
Rated 5 out of 5 stars

Such a professional team

Such a professional team
Aware that they are entering your house at a time of crisis and always act in such a polite professional manor
Always arrive on scheduled time and complete the work in a timely manor

27 January 2026
Unprompted review
Rated 5 out of 5 stars

Excellent company

Excellent company, well organised and efficient. Have used Grand Union Plumbing twice now and on each occasion have been very happy with the work carried out. Both Conner and Marco were both very friendly and professional. Would highly recommend this company and will be using them for any future plumbing jobs.

15 January 2026
Unprompted review
Rated 5 out of 5 stars

First Class

Called out for emergency on a Sunday and they turned up within 30 mins. A few hours later and repair completed. Professional and friendly service . I wouldn't hesitate to recommend to anyone

4 January 2026
Unprompted review
Rated 4 out of 5 stars

Returning customer for perhaps the 10th time??

I have used Grand Union many times and always for my annual boiler service. This time I had a problem with noisy pipework and high water pressure. Marco arrived early, and while he didn't completely solve the issue, he did identify the cause which is something I can do myself. Highly recommend

30 December 2025
Unprompted review
Rated 5 out of 5 stars

Fast and professional

Fast, reliable, and professional. They replaced my toilet and fixed my plumbing issue in record time. Quality work and great communication. Five stars!"

30 December 2025
Unprompted review

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