Boiler Engineer

Grain Plumbing & Heating

Nottingham4.9· 50 reviews · 2 sources
Trust score
82out of 100
Rating4.9★
Review volume50
Source diversity2 sources
VerificationListed

Based on rating, review volume, independent sources and verification. Evidence context — not a guarantee of workmanship.

Reviews · public evidence

What the public record says

4.9out of 5
50 reviews in public evidenceCross-checked across 1 source
Which? Trusted Traders50 reviews · 5.0 avg

Highlights

"This is the second time we have asked Mark to visit us to look at our problems as he impressed us on his first visit with his reliability and overall knowledge, As before, he kept us informed of his availability and on the agreed day his time of arrival. We had a list of various plumbing jobs for him which we duly handed over and then left him to it. Thankfully he set about efficiently working through the list without an any qualms nor any further input from us. The list of jobs was soon finished to our satisfaction and to a certain extent our admiration. Mark was no trouble and I can recommend him especially to the more mature members who like myself have very little DIY knowledge of domestic plumbing."

Customer in NottinghamWhich? Trusted Traders5.0 rating

"Investigation to locate leak, inside the house. Provision and installation of new taps, new wash basin waste pipe and outside tap. Only a couple of days to wait for a quote and then the same for getting the jobs done. All work done in one day. Professional, efficient and friendly."

Customer in NottinghamWhich? Trusted Traders5.0 rating

"Mark Grain has completed a couple of urgent jobs for me recently. Firstly, after a water leak from a broken pipe in the bathroom he responded within the hour to isolate the leak and returned the next morning to finalise the work and replace a faulty valve. The second job involved resolving a fault on the boiler over the weekend. Both jobs were completed promptly and effectively."

Customer in NottinghamWhich? Trusted Traders5.0 rating

Detailed reviews

Customer in Nottingham5.0 / 5

This is the second time we have asked Mark to visit us to look at our problems as he impressed us on his first visit with his reliability and overall knowledge, As before, he kept us informed of his availability and on the agreed day his time of arrival. We had a list of various plumbing jobs for him which we duly handed over and then left him to it. Thankfully he set about efficiently working through the list without an any qualms nor any further input from us. The list of jobs was soon finished to our satisfaction and to a certain extent our admiration. Mark was no trouble and I can recommend him especially to the more mature members who like myself have very little DIY knowledge of domestic plumbing.

Which? Trusted Traders
Customer in Nottingham5.0 / 5

Investigation to locate leak, inside the house. Provision and installation of new taps, new wash basin waste pipe and outside tap. Only a couple of days to wait for a quote and then the same for getting the jobs done. All work done in one day. Professional, efficient and friendly.

Which? Trusted Traders
Customer in Nottingham5.0 / 5

Mark Grain has completed a couple of urgent jobs for me recently. Firstly, after a water leak from a broken pipe in the bathroom he responded within the hour to isolate the leak and returned the next morning to finalise the work and replace a faulty valve. The second job involved resolving a fault on the boiler over the weekend. Both jobs were completed promptly and effectively.

Which? Trusted Traders
Customer in Nottingham5.0 / 5

Mark stepped up to provide a temporary repair to our heating system valve leak, managed to source the part from Germany when it was found to be unavailable in the UK and then successfully fitted the part. Mark took the trouble to contact me out of hours and provided updates to the work being done. Much appreciated. Would recommend!

Which? Trusted Traders
Customer in Nottinghamshire5.0 / 5

My gas boiler stopped working on a freezing cold day. I called Mark and he came that day. He didn't leave until he had chased up the part needed for the necessary repair and fitted it into the boiler. He worked quickly and professionally and didn't leave until he was sure that the boiler was functioning properly again. I can't praise Mark enough for responding quickly to this emergency and making sure that I had heating and hot water again.

Which? Trusted Traders
Customer in Nottingham5.0 / 5

Mark is exactly what you need in a plumber. Quick completion, updates and competitively priced. He looks after all our rentals and homes. After years of unreliable shoddy work, he’s a godsend to anyone with boilers to service and plumbing that can go wrong. Put simply, best trades person I have ever dealt with. Trustworthy and reliable.

Which? Trusted Traders
Customer in Nottinghamshire5.0 / 5

We've had mark visit for a job before and have always been very satisfied with the service received. Very polite and professional, highly recommended to all

Which? Trusted Traders
Customer in Nottingham5.0 / 5

Mark installed a new boiler for me at one of my rental properties. I was very happy with the service provided and completed the job quickly. The tenant is also happy with the new boiler.

Which? Trusted Traders
Customer in Nottinghamshire5.0 / 5

Mark goes the extra mile and then some. My boiler developed a leak which was going into the electrics. I contacted Mark mid / late afternoon as a long shot for any chance of a repair that day, hopefully the next day. Not only did Mark (who was in the area) call in and diagnose the problem, but travelled to 2 stockists across the busy city centre at the evening rush hour to get the part, fitted it and left at approaching 7.00pm leaving me with a fully working boiler. Beyond happy!! Invoiced exactly as he estimated despite the time it eventually took. I will be very pleased to both recommend Mark and use him again.

Which? Trusted Traders
Customer in Nottingham5.0 / 5

Mark from M.W.Grain Plumbing and Heating came highly recommended. I called him early one morning and he visited same day, and carried out the work requested in a very professional and competent manner. It’s great to have solid, and experienced engineers who carry out their work with no fuss, and provide a superb and excellent service to their customers. Thoroughly recommended and 100% reliable !

Which? Trusted Traders
Customer in Nottingham5.0 / 5

My old cylinder had a crack and was leaking a lot, so I urgently needed to have it replaced. Mark responded very swiftly: people came on the day I called, I had a quote sent the following day (Friday) and the new cylinder was fitted on Monday all day, and they came back on Tuesday to secure a piece with a wooden frame (extra security). The water was back to running properly on Monday evening, and had hot water on Tuesday morning. I am very pleased with their responsiveness and professionalism (I appreciated that they answered my call on Sunday and addressed my concerns), and the engineers that came to do the work were very nice, and really made the effort to keep the disruption to a minimum. Thank you to Ash who took the time to explain and answer all our questions. Very nice and efficient! It wasn't a cheap job, but in line with what I was expecting in terms of price. The professionalism and quality of the work make it a good value.

Which? Trusted Traders
Customer in Nottingham5.0 / 5

Mark and his team have done work for us both at home and in the office. I cannot recommend them enough. They do a great job, are clean, thoughtful, and polite. Just brilliant.

Which? Trusted Traders
Customer in Nottinghamshire5.0 / 5

Mark responded really promptly to my request for a replacement boiler calling the same day that I contacted him to quote for the work. The price was competitive and represented excellent value for money. A member of his team started the next day and completed the work quickly and to a high standard. I would wholeheartedly recommend Groin Plumbing and Heating to anyone and will certainly use them again in the future.

Which? Trusted Traders
Customer in Nottinghamshire5.0 / 5

We have just moved into a new property and Mark came to service the boiler which was showing low pressure. As well as servicing and sorting the boiler out, Mark also gave lots of helpful advice about other jobs we need doing around the house. Came across as a very friendly, genuine guy who is keen to ensure that his work is done well and on a basis of trust. Likely to use again as his firm covers several other trades.

Which? Trusted Traders
Customer in Nottinghamshire5.0 / 5

From the point of contacting Mark to the response and completion of work we had excellent service. We cannot thank both Mark and his team enough for resolving two problems in our bathroom. We highly recommend this company and would definitely use them in the future.

Which? Trusted Traders
Customer in Nottinghamshire5.0 / 5

When our central heating boiler started to leak it was found to be beyond repair. We contacted Mark who was very busy but offered to replace the boiler in a few days on Sunday. We were very grateful. The job was done very efficiently and expertly.

Which? Trusted Traders
Customer in Nottingham5.0 / 5

Mark was very professional and quickly resolved an issue with the boiler and the radiator on the same day. I would highly recommend Mark and will be using again in the future.

Which? Trusted Traders
Customer in Nottinghamshire5.0 / 5

We suffered a Shower Pump failure, a hugely inconvenient loss. Grain Plumbing responded very quickly to come out and identify the source of the problem; and to then timetable the acquisition and fitting of a new pump. A welcome hot shower was soon restored! We were very impressed with the speed of response, the engagement of the members of the Grain team who responded to sort out the problem, the patience shown in explaining the problem and the solution; and the expertise displayed to complete the repair. When future plumbing and heating issues arise we look forward to welcoming the team from Grain Heating back to put them right for us.

Which? Trusted Traders
Customer in Nottingham5.0 / 5

I can’t recommend Grain Plumbing & Heating highly enough. Their speed of service and quality of work are consistently excellent. As a landlord, it makes a huge difference working with a team that genuinely understands the pressures and responsibilities involved, especially when tenants’ needs have to be dealt with quickly and professionally. They are always approachable, calls are answered, and you’re kept fully updated throughout the job. Budgets are sensible and practical, with clear and realistic timescales given from the outset. In my experience, they regularly under-promise and over-deliver. They have become my trusted partners and are always my first call for any gas or plumbing issue, whether domestic or commercial. Reliable, professional, and a pleasure to deal with.

Which? Trusted Traders
Customer in Derbyshire5.0 / 5

Good communication from the office. Friendly Plumber and good work. The leak is now fixed. Thanks…..

Which? Trusted Traders
Page 1 of 3
Local context

Rated 4.9★ — in line with the local average for boiler engineers in Nottingham

Across 8 rated boiler engineers in Nottingham, the typical rating is 4.9★. We compare against the same businesses a homeowner would find searching for this trade locally.

About

Grain plumbing and heating, based in Nottingham, offers a wide range of plumbing and heating services at competitive prices for both commercial and domestic customers. Specialising in the maintenance and installation of plumbing and heating systems and covering all gas works including landlord gas safety certificates, boiler, fire, cooker servicing and repairs. I pride myself on delivering a first class service, ensuring that all work is completed to the highest and safest of standards, from simple plumbing jobs, to more extensive projects, including bathroom installations, I have the skills and experience necessary to meet your requirements. Get in touch today!

Public evidence checks

Trust checks and red flags

Public evidence shown
Public review evidence4.9★ from 50 public reviewsAcross Which? Trusted TradersWebsiteWhich? Trusted Traders
Sources

Every signal, traced to its origin

2 named sources
Verify at the sourceCheck them yourself

Gas work is restricted by law to Gas Safe registered engineers. If they'll touch a boiler or any gas appliance, confirm they're currently on the register before you hire - it's free and takes a minute.

Check the Gas Safe Register
Public evidence checks

What's strong, and what to check yourself

Strong signals
Rating: 4.9★
Review volume: 50
Source diversity: 2 sources
!Worth checking yourself
!Verification: Listed
Smart checks

Before you hire a heating engineer

Confirm they cover your area and can actually come out in your timeframe before anything else.
Read recent reviews for reliability and turning up on time — not only the quality of the work.
Agree the call-out fee up front, and be wary of large upfront deposits for an emergency job.
Run the Cowboy Checker to confirm the business is real before you let anyone in.
Good to know

Common questions about Grain Plumbing & Heating

What do customers say about Grain Plumbing & Heating?

Grain Plumbing & Heating has 50 public reviews, averaging 4.9 out of 5, gathered across 2 independent sources. You can read the individual reviews and where each came from in the reviews section above.

How do I know Grain Plumbing & Heating's reviews are genuine?

Grain Plumbing & Heating's 50 public reviews are gathered and cross-checked across 2 independent public sources. Reviews spread across several named sources are harder to fake than a single polished page. MyTrustedTraders brings this public evidence together with no ads and no paid placement: we show where every review came from rather than selling rankings, so you can weigh the evidence for yourself.

Public evidence last checked May 2026

Want an extra legitimacy check?
Run the Cowboy Checker on Grain Plumbing & Heating before you contact them.
Run Cowboy Checker →