Endorsed by Which?

Stelfox Plumbing & Heating Ltd

Profile image for Stelfox Plumbing & Heating Ltd
4.9

32 Reviews

Opening Hours
Today - 08:00–18:30
  • Monday 08:00–18:30
  • Tuesday 08:00–18:30
  • Wednesday 08:00–18:30
  • Thursday 08:00–18:30
  • Friday 08:00–18:30
  • Saturday 10:00–15:00
  • 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

About

We at Stelfox Plumbing and Heating are proud to be recognised as a Which? Trusted Trader, delivering dependable plumbing and heating services built on quality, honesty, and professionalism.

Whether you need an emergency call-out, routine repair, or a full installation, we’re committed to providing expert solutions tailored to your needs.

Our Services:
- Boiler installations, servicing and repairs
- Central heating systems
- Taps, showers, toilets and baths
- Radiators and pumps
- Power flushing
- Drainage systems

We hold ourselves to the highest standards of service and customer care. Our reputation is built on being reliable, professional, and thorough — ensuring every job is completed to the highest standard and backed by genuine customer satisfaction.

"Plumbing You Can Trust. Service You Deserve." – Stelfox Plumbing and Heating

What we do

  • Plumbers

    • Emergency plumbing services
    • Unvented cylinder installation and maintenance
    • Water softener installation and maintenance
  • Heating contractors

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

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

    • Accessible bathrooms and showers
    • Bathroom Installation
    • Bathroom refurbishment
    • Electric Showers
  • More Services

    • power flush

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.

4.9
32 reviews
Customer Service
4.8
Quality
4.9
Value
4.8
Sort by
Investigating heating problem/Remedial Work to Megaflo/Re-routing heating pipes
Customer Service
Quality
Value
Earlier this year Ciaron installed a Worcester Bosch Greenstar boiler and fitted new copper pipework in the kitchen and hallway. The downstairs heating did not work efficiently which was baffling so he returned to investigate the problem. He methodically checked all the pipework, radiator valves and the radiators and would not give up until he had found the problem. We were very relieved. As usual he worked quietly, cleanly and diligently. If we need any further work in the future, we will not hesitate to engage Ciaron. He will be carrying out an annual service on our boiler and system every year from now on. In addition to the said work, he found a problem with a valve in relation to the Megaflo which we were not aware of so he is returning to replace it in the near future. He pointed out that once we start using the heating, it will cost us more money if it isn't fixed which was very helpful. Again, we would not hesitate to recommend Ciaron.
Customer in Hertfordshire Posted on 01/08/2022 , work completed 28/07/2022
The trader replied (on 25/03/2026)
Thank you very much for taking the time to leave such a thoughtful review. I’m really pleased to hear you’re happy with the boiler installation and the follow‑up work. Some heating issues can be a bit of a puzzle, so I always make sure to go through everything methodically until the cause is found — I’m glad we got to the bottom of it and that your system is now running as it should. I really appreciate your comments about the workmanship and the way the job was carried out. Working cleanly, quietly and with care is something I take seriously, so it’s great to know that came across. Thank you as well for trusting me with the ongoing servicing and the Megaflo valve replacement. Your recommendation means a lot, and I’ll always be here if you need anything in the future.
Prompt and efficient service
Customer Service
Quality
Value
My boiler needed a service so I used this site to find a service engineer. The 1st to come up was Stelfox Plumbing and heating and as they were close I contacted them. I'm glad I did. I stressed there was no hurry, but nevertheless a convenient date was arranged. I received a text in advance of his arrival, and he came on time and completed a thorough service. Ciaran left the place as he found it. A professional and courteous service all round.
Customer in Hertfordshire Posted on 27/07/2022 , work completed 26/07/2022
The trader replied (on 25/03/2026)
Thank you for taking the time to leave this review. I’m really glad I was able to get your boiler serviced at a time that suited you. I always aim to keep things straightforward — clear communication, turning up when agreed, carrying out a thorough service, and leaving everything exactly as I found it — so it’s great to hear that came across. I really appreciate your kind words, and if you ever need anything in the future, I’ll be more than happy to help.
Excellent
Customer Service
Quality
Value
Ciaran has carried out a wide variety of work for us, which involved installing a new Worcester Bosch wall hung boiler, a new radiator, replacing a shower valve (including making good), running extensive new gas and water pipes and creating new drain outlets. Ciaran’s work has been absolutely exceptional in all cases. Refreshingly, he has carried out difficult investigations and given much thought to the work, coming up with creative solutions which saved us a lot more work overall. Ciaran is very polite, articulate, approachable, extremely skilled, punctual, clean and tidy. Additionally, he listens carefully and is excellent at communicating at all stages. We have further work to be done in the future and feel relieved that finally we have found a gas engineer/plumber that we can trust to do the work professionally. We highly recommend Ciaran.
Tina in Hertfordshire Posted on 26/04/2022 , work completed 21/04/2022
The trader replied (on 25/03/2026)
Thank you so much for leaving such a detailed and generous review. It means a lot to hear that you’re pleased with all the work carried out. Some jobs need a bit of investigation and creative thinking to get the best result, so I’m really glad the solutions we put in place worked well for you and helped avoid unnecessary extra work. I really appreciate your comments about the workmanship, communication and the way the job was handled. Being clear, tidy, punctual and easy to work with is something I take seriously, so it’s great to know that came across throughout the project. It’s a pleasure to work for you, and I’m glad you feel confident about the future work too. Thank you again for the recommendation — it genuinely makes a difference to a small local business.
Change my ageing tap
Customer Service
Quality
Value
I sent Ciaran some photos of the area under the sink that would be required to access the job. He came back very quickly with a recommendation of the make of tap and a fair price. He turned up at the appointed time and got on with job, very clean and tidy Even cleaned up the sink for me. I am very happy with the work done John
Customer in Hertfordshire Posted on 06/03/2022 , work completed 02/02/2022
The trader replied (on 25/03/2026)
Thanks very much for your review, John. I’m glad the photos helped us get everything organised quickly for you. It was a pleasure to get the tap sorted, and I’m really pleased to hear you’re happy with the work. I always aim to turn up when agreed, keep things clean and tidy, and leave everything looking better than I found it — so your feedback means a lot. If you ever need anything in the future, I’ll be happy to help.
Professional service.
Customer Service
Quality
Value
I have used Stelfox Plumbing & Heating several times. This time it was to replace a radiator valve and to look at a faulty shower. The valve was replaced and now works perfectly. Ciaran gave me clear options with regard to the shower problem and I have engaged him to carry out further work. Ciaran responds quickly to any messages and he carries out the work in a professional and friendly manner.
Eileen in Buckinghamshire Posted on 04/02/2022 , work completed 28/01/2022
The trader replied (on 25/03/2026)
Thank you for taking the time to leave this review. It’s always a pleasure to help, and I’m really glad to hear the valve replacement went smoothly and that the options for the shower were clear and helpful. I always aim to respond quickly, explain things properly and carry out the work in a tidy, professional way, so your feedback really means a lot. Thanks again for choosing Stelfox Plumbing & Heating — I look forward to helping with the next stage of the work.
Endorsement Reference
Customer Service
Quality
Value
Has had variety of work completed over the last 18 months such as boiler in warehouse, pipework, pretty good. On time, thorough. If any changes, would let me know. Would Recommend.
Which? Trusted Traders Consumer Posted on 21/01/2022 , work completed 21/01/2022
The trader replied (on 25/03/2026)
Thanks very much for the review. It’s been great working with you over the last year and a half, and I’m really glad you’ve been happy with everything from the boiler install to the pipework. I always aim to be on time, thorough, and clear about any changes as they come up, so I really appreciate you mentioning that. Thanks again for the recommendation — it means a lot.
Plumbing Reference
Customer Service
Quality
Value
I had one radiator removed and another horizontal radiator switched for a vertical one. He was very professional and clean. The work was carried out quickly and professionally. I would recommend him.
Which? Trusted Traders Consumer Posted on 21/01/2022 , work completed 13/12/2021
The trader replied (on 25/03/2026)
Thank you for taking the time to leave this review. I’m really glad to hear you’re happy with the radiator work. I always aim to work cleanly, professionally and get everything done efficiently, so it’s great to know that came across. Thanks again for the recommendation — it’s very much appreciated.