Endorsed by Which?

Strong Plumbing & Heating

5.0

68 Reviews

Opening Hours
Today - 08:00–17:00
  • Monday 08:00–17:00
  • Tuesday 08:00–17:00
  • Wednesday 08:00–17:00
  • Thursday 08:00–17:00
  • Friday 08:00–17:00
  • Saturday - Closed
  • Sunday - Closed

What is a Which? Trusted Traders Hertfordshire Trading Standards Approved Endorsement?

Which? Trusted Traders has partnered with Hertfordshire Trading Standards to create a Hertfordshire Trading Standards Approved endorsement. In addition to our standard trading standards assessment, this trader has had a DBS check and is subject to a Trading Standards intelligence check

Organisations and Awards

Aug 2020

About

Based in Berkhamsted, Hertfordshire, Strong Plumbing and Heating was founded by Lee Strong. Lee has gained a vast amount of knowledge whilst working in the industry.

Lee is a gas safe engineer working on boiler and heating installations. He believes that customer service is paramount, and aim to complete the works required within the specified time frame and with as little disruption to your home as possible.

Since having set up Lee has had great reviews from all customers, and he always aims to treat homes like they are his own, making sure it is clean and tidy at all times. Strong Plumbing and Heating pride on customer relations listening to what they say and pointing them in the right direction with regards to quality products but still maintaining affordability.

Strong Plumbing and Heating are expert fitters, repair professionals and engineers in Berkhamsted, Hertfordshire. If you are looking for plumbing and heating help. Please get in touch.

What we do

  • Heating contractors

    • Immersion Heaters
    • Central heating systems (installation and servicing)
  • Boiler, central heating and gas engineers

    • Boiler installation
    • Boiler servicing
    • Boiler repair
    • Gas cooker installation
    • Gas cooker repair
    • Gas emergencies
    • Gas fire repair and servicing
    • Underfloor heating
    • Radiators and central heating
    • Immersion Heaters
    • Power flushing
    • Gas safety testing and inspection
  • Plumbers

    • Emergency plumbing services
    • Unvented cylinder installation and maintenance
    • Water softener installation and maintenance
  • Gas installers

    • Gas Fires
  • Bathroom fitters

Customer reviews

Why you can trust these reviews

All reviews are verified as being genuine and a true customer of this trader.

How can we be so sure?

100% of the reviews we publish have been through our stringent moderation process.

5.0
68 reviews
Customer Service
5.0
Quality
5.0
Value
5.0
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On time & dealt with the issue efficiently & effectively.
Customer Service
Quality
Value
I am a Trading Standards Officer by trade with 31 years experience so I'm naturally weary of engaging tradesmen, as I often hear all the horror stories. Hence why I used Which? to find Lee. November is no doubt peak season for gas engineers & I was glad that Lee was open & honest about being super busy. However, he gave me an appointment time & stuck to it. He arrived on time and was able to diagnose, explain and fix the issue there & then for a very reasonable charge. I have absolutely no hesitation in recommending him to all.
Customer in Hertfordshire Posted on 02/12/2025 , work completed 28/11/2025
Fitted three new radiators
Customer Service
Quality
Value
Arrived in time, two plumbers, very tidy and assessed how work was to be carried out. Work was carried out very professionally and in a timely and tidy manner. Maybe the best plumbing work we have ever had carried out for us. Will thoroughly recommend this company and already discussing further works with them. Superb.
Customer in Hertfordshire Posted on 19/12/2024 , work completed 13/12/2024
Heating and water improvements
Customer Service
Quality
Value
Lee upgraded a radiators to produce more heat and fitted TRV's to radiators with standard valves. Replaced the main circulation pump that had become noisy. Replaced both loft header tanks and repositioned them to maximise access and available loft space. Fitted service valves. Lee and his assistant performed an efficient professional and extremely neat job over two days. Also diagnosed a subsequent zone valve problem without fuss. Would use again.
Customer in Hertfordshire Posted on 15/12/2024 , work completed 05/12/2024
Full and complete conversation of property from electric heating to gas central heating
Customer Service
Quality
Value
Mr Lee Strong We considered three quotations from companies with good repute. And after due diligence Mr Strong had the most reliable character and knowledge on the face of things. He explained in his initial survey clearly and concisely with sound and reasonable logic in Lehman's terms ,which myself and a family member found highly sensible, logical and in a very easy to understand manner. The quotation was more than sufficiently itemised and reasonable and easy to understand in breakdown. His Energy, concentration and professionalism was excellence itself. Further he had a highly congenial , polite manner. His problem solving skills were swift, excellent and logical. His time keeping was excellent and he kept me highly well informed of his progress and diary . The work ran exactly to time as stated . I have been on building sites occasionally before in an informal capacity and the steady state ratio , efficiency and work ethic was exceptionally professional and efficient. In sum I found Mr Strong honest, trustworthy and reliable. The system installed was excellent and the materials used of the highest quality and matched the quote on site . Further he had every tool beyond imagination ! He tidied and hoovered every day. The system was tested thoroughly . Excellent tour of inspection at the end. Logically explained .aesthetically pleasing functional ,practical finished piece of art which I am certain will add extra value to the property . Delightful work By a Gent .
Customer in Hertfordshire Posted on 29/11/2024 , work completed 29/11/2024
Replace/Move Boiler
Customer Service
Quality
Value
I would highly recommend Strong Plumbing and Heating. We employed Strong Plumbing and Heating to remove our old boiler and install a replacement in the main loft of our house. Lee provided great advice on what boiler would meet our needs and budget, which was very much appreciated. He was always more than happy to answer our questions and discuss options. The installation was seamless. The team arrived on time each day, worked very hard and took pride in ensuring that our house was left clean and tidy when they had finished. The boiler is working perfectly, the flue through the roof has been done very neatly and the copper pipework is very professionally done. We have been so impressed and will not hesitate to get in touch again with Strong Plumbing and Heating for our next plumbing project!
Customer in Hertfordshire Posted on 16/09/2024 , work completed 20/08/2024
Fabulous experience
Customer Service
Quality
Value
Lee and team completed a fully refit of all plumbing in our renovated/extended home, this spring/summer 24. This included new boiler system, hot water tank, underfloor heating system and all manner of bathroom installations. Lee was a pleasure to work with, very approachable and always keen to discuss issues/plans before pushing ahead, which we greatly appreciated. Lee's attention to detail was great; he works in a very neat manner a was always thoughtful in regards to the aesthetics of what he was fitting; whether that be bath knobs or radiators placements etc.. He made sure the job not only worked to the best of it's ability, but that it always looked great, too. The aftercare has been fabulous. Since we've moved back in; Lee has come to check heating balance and that everything's working well, since it's got colder. After so many months on site, we'll miss Lee. We also know we'll have a plumber for life.
Customer in Hertfordshire Posted on 14/09/2024 , work completed 16/08/2024
Reliable and responsive
Customer Service
Quality
Value
Lee installed a new boiler for us, he is very reliable, responses quickly and does a thorough work, it's very important for me to trust the professional when it comes to anything to do with boilers - it's an area I don't know much about and Lee is very reassuring, I totally recommend his services.
Customer in Buckinghamshire Posted on 06/09/2024 , work completed 06/09/2024
Boiler issue
Customer Service
Quality
Value
I had problems with my boiler and thought I would need a brand new boiler , however Lee came and checked it and saved me a ton of money by fault finding and telling me exactly what needed to be done. Iam soon looking at new bathroom and heating system and would definitely be calling Lee to carry out the works. Highly recommended- very professional and trust worthy.
Customer in Hertfordshire Posted on 26/06/2024 , work completed 05/06/2024
Boiler replacement
Customer Service
Quality
Value
This was my first time using this business. I chose them out of several local options because Lee provided a reasonable quote for replacing my old boiler with a combi boiler, and gave lots of clear explanations and helpful advice. The work was done to the agreed schedule and budget. Lee and his colleagues were cheerful and professional. When we saw that I'd need to also get a new shower part, Lee was very helpful with sourcing it and arranging for this additional work to be fitted in very soon after the main job. I'll definitely be sticking with them for any future plumbing needs.
Customer in Hertfordshire Posted on 31/05/2024 , work completed 27/05/2024
Great work
Customer Service
Quality
Value
We have used strong’s plumbing services for our plumbing and heating for many years. We decided to get a new bathroom installed and of course we asked Lee. We explained to Lee what we wanted and Lee took over from there. The plan was to have the work done while we were away on holiday. Lee kept us updated with photos etc while we were away. We came back to a clean and tidy house and we was over the moon With the bathroom. I would recommend Lee to anyone as he is a top class plumber. 5 stars all round.
Customer in Hertfordshire Posted on 14/09/2023 , work completed 11/09/2023
Complete revamp of en-suite
Customer Service
Quality
Value
Lee fitted a new boiler etc earlier this year. His workmanship was of such a high standard that I asked him if he could recommend someone that could do a complete revamp of my en-suite. I was so pleased when he said he could do it for me. He guided me on what was required and gave me a verbal quote saying it may vary a bit depending on what was involved once work started. Lee did all of the plumbing, installing a walk in shower etc. He has access to all of the tradesmen that were needed, tiler, plasterer, electrician. flooring etc. They all were brilliant and such nice guys. The finish was really high end far better than anticipated. I would not use anybody else in the future.
Customer in Hertfordshire Posted on 04/08/2023 , work completed 21/07/2023
Excellent service
Customer Service
Quality
Value
I found Lee on the Which Trusted Traders site after some poor experiences with other local central heating companies, and have been delighted with all aspects of his service. Everything he did, from his original advice and quote to carrying out the job efficiently, cheerfully, on time and without mess was excellent, and I can thoroughly recommend him. He even texted me the evening before to let me know the time he would arrive, as well as after completing the job to check I was happy with the results. He and his colleague power-flushed the central heating, fixed all new thermostatic radiator valves, then Lee rewired the central heating and installed a new Hive control, so my system is now working much better. I will be asking Lee back for regular servicing of my boiler, and have already recommended him to a friend
Chris in Hertfordshire Posted on 03/06/2023 , work completed 01/06/2023
Excellent Work!
Customer Service
Quality
Value
We have been really impressed with Lee. When we asked Lee round for a quote, he really showed a lot of knowledge about our issues in the house. Our house had a lot of plumbing problems. It was a quick turn around on the quote and booked quickly. Lee was flexible as the job took longer than expected but kept us informed on everything. All new tank, piping, moving of current boiler into loft. We now have a very powerful system that works amazingly well. Lee was efficient, tidy and always on time. We even got him back to service our boiler a couple of weeks later. We would not hesitate to get Lee back for more jobs or recommend him to others.
Natalie in Buckinghamshire Posted on 15/05/2023 , work completed 18/04/2023
More Excellent Work
Customer Service
Quality
Value
We have used Lee's services for our plumbing work for many years and once again he excelled with his quality of workmanship and knowledge in fitting a brand-new bathroom. At the end of each day, the place was clean and tidy as if he hadn't been working there all day. His friendly and cheerful attitude shines through and the work was done on time and on budget with no problems that he didn't solve straight away. I would strongly recommend his services, not only for plumbing but also for servicing of gas central heating.
Customer in Hertfordshire Posted on 03/05/2023 , work completed 28/06/2022
New boiler
Customer Service
Quality
Value
I was recommended to Lee by a neighbor. When he came to give me a quote I was extremely impressed with his extensive knowledge, which gave me great confidence. The job was to take two days. The first day was taken up with power flushing and I was amazed at what came out of my system! Day 2 the boiler, pump, valves etc. were fitted. Lee is a fantastic worker ( loves his tea), his work is so neat and tidy. It's such a joy to have someone who takes so much pride in his work. My invoice was exactly as quoted. Lee is now going to refit my en-suite, I think that says everything.
Steve in Hertfordshire Posted on 12/04/2023 , work completed 04/04/2023
Professional, Considerate and Reliable
Customer Service
Quality
Value
Lee replaced our heating and water system including replacing and moving the oil tank and boiler. He delivered a complex project to the originally quoted amount without any quibbles over additional things that came up. The work was of a high standard and he was good at minimising disruption and respecting our property, which is listed. He comes highly recommended
Customer in Hertfordshire Posted on 17/03/2023 , work completed 15/03/2023
New Kitchen sink and tap fitted and boiler Pipe repositioned.
Customer Service
Quality
Value
Lee fitted a new kitchen sink and repositioned a boiler condensate pipe. His work was of a very high standard. He was professional, polite, friendly and a tidy worker. His prices were competitive. Lee refitted our shower room five years ago so we did not hesitate to use him again for this job. The shower room was beautifully done and we haven’t had any problems with it. We would certainly recommend Lee.
Customer in Hertfordshire Posted on 14/03/2023 , work completed 10/02/2023
Brilliant - thank you Lee
Customer Service
Quality
Value
Lee was recommended to us by a family member who found him on Which? Trusted Traders website. Delighted with the work he has done for us - he has installed a whole new heating system and new bathroom. Very high standard of work - on time - tidy - took away all rubbish - so happy with new bathroom - Lee sorted out tilers and electricians for work - would highly recommend - oh and he likes a nice cup of tea !! Thank you Lee
Kathy in Hertfordshire Posted on 27/02/2023 , work completed 17/02/2023
High quality work & advice
Customer Service
Quality
Value
"Wet" underfloor heating, expertly installed, & working extremely well. Good advice beforehand & throughout. Dealt without fuss & without further charge when encountering problems with existing heating controls. Testament to the quality of work was that the company laying the floor on top were very impressed. My only slight quibble is that it was difficult getting hold of him before the work started (partly no doubt due to high demand). But overall this was obviously very good quality work & service.
Customer in Hertfordshire Posted on 20/02/2023 , work completed 26/01/2023
Lee saved our Christmas bacon
Customer Service
Quality
Value
We needed a gas engineer at short notice the week before Christmas to help fit our stove. This required two visits, one to stop gas and then we needed to complete the work top installation before he could come back again. This took slightly longer than we thought but Lee was amazing, super flexible and professional. Lee did what he promised which is a rare thing as I’d already been ghosted by other engineers. He was also reasonably priced and it was great to feel you were in safe hands with something so important to us. No Lee = no Christmas turkey!
Customer in Hertfordshire Posted on 14/01/2023 , work completed 22/12/2022
Lee is outstanding
Customer Service
Quality
Value
Lee went completely over and above all expectations for me when my boiler was broken. We had problems with the heating over the cold snap and he fixed almost immediately for me. I couldn’t be more grateful. Will definitely be asking him to sort out a new boiler and any work needed in the future one hundred percent.
Kitty in Hertfordshire Posted on 24/12/2022 , work completed 14/12/2022
New boiler
Customer Service
Quality
Value
Lee is very professional and goes above and beyond what is needed. Highly recommend his work and wouldn’t hesitate to ask him to do work again.
Iain in Hertfordshire Posted on 03/10/2022 , work completed 01/10/2022
Heating/Hot Water Issue - New Boiler?
Customer Service
Quality
Value
I can highly recommend Lee from Strong Plumbing and Heating. He was punctual, polite, professional and extremely knowledgeable. We experienced issues with our hot water and heating for a number of weeks - the heating was permanently on, the hot water sporadic and the boiler tripped repeatedly. Two engineer visits from a rival firm failed to diagnose the issue correctly. Having replaced various parts without resolution, we were told the boiler needed to be replaced as the parts were obsolete. We called Strong Plumbing and Heating initially for a boiler quote but Lee took the time to understand the issues we had been experiencing. Within minutes, he was able to ascertain that the problem was with the electrical wiring of the valve rather than the boiler itself, and he was able to resolve the issue without the need to replace the boiler. We are so grateful to Lee at Strong Plumbing and Heating. He will be our first port of call for any future heating issues.
Customer in Hertfordshire Posted on 22/12/2021 , work completed 22/12/2021
Excellent professional work
Customer Service
Quality
Value
Lee installed a new Worcester Bosch Boiler, carried out a full chemical power flush, fitted new central heating pump and valves, installed a smart heating control plus other required devices. He provided a detailed estimate for the work and it was all completed on schedule and within budget. All the work was carried out to a very high standard. Lee is a highly knowledgeable and skilled professional, he provided sound advice on what was needed and explained everything as the work was being carried out. I would not hesitate to recommending Strong Heating and Plumbing to anyone who wants a professional job being carried out to the very highest standards.
Customer in Central Bedfordshire Posted on 10/12/2021 , work completed 09/12/2021
Installed central heating including boiler and radiators
Customer Service
Quality
Value
I have recently bought a 1950's house that did not have gas-connected and old-style storage heaters. When Lee came round he talked me through the whole process and made great recommendations on boiler and radiators sourcing all of these. He had to take up the carpets and flooring to install all the new pipework to connect radiators and install boiler. He removed old hot water tanks and disposed of them. He completed the work when I was on holiday and sent pictures to me each day to show me the progress of the job, which was very reassuring. I expected to come back to a mess but Lee had cleaned up really well and left everything very tidy. I would highly recommend him, very friendly, turned up on time, great communication and great price.
Customer in Hertfordshire Posted on 11/10/2021 , work completed 19/08/2021