Endorsed by Which?

Priority Plumbers Ltd

4.9

160 Reviews

Opening Hours
Today -
  • Monday 08:00–17:30
  • Tuesday 08:00–17:30
  • Wednesday 08:00–17:30
  • Thursday 08:00–17:30
  • Friday 08:00–17:30
  • Saturday 08:00–17:30
  • 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

Priority Plumbers Ltd is an independent plumbing and heating company based in St Albans covering London and the Home Counties.
We are Gassafe registered and have all relevant qualifications.
We provide a wide range of plumbing and heating services from very small jobs to large projects.
We are very proud of the excellent level of customer service provided with a very high level of repeat customers.
Please call us for queries big or small.

- Unvented cylinder installation and maintenance
- Emergency plumbing services
- Boiler, central heating and gas engineers
- Boiler servicing
- Boiler installation
- Boiler repairs
- Radiators and central heating
- Gas safety testing and inspection
- Heating contractors
- Central heating systems (installation and servicing)

What we do

  • Plumbers

    • Unvented cylinder installation and maintenance
    • Emergency plumbing services
  • Boiler, central heating and gas engineers

    • Boiler servicing
    • Boiler installation
    • Boiler repair
    • Radiators and central heating
    • Gas safety testing and inspection
  • Heating contractors

    • Central heating systems (installation and servicing)

Customer reviews

Why you can trust these reviews

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

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

4.9
160 reviews
Customer Service
5.0
Quality
4.9
Value
4.8
Sort by
Excellent service
Customer Service
Quality
Value
We have been using Darren for many years. He services our boiler every year and also has fitted a new one for us. He has also helped very quickly with any other urgent issues that have come up over the years. He is very professional, always arrives on time and is very thorough with his work. We trust him completely.
Customer in Hertfordshire Posted on 17/10/2025 , work completed 17/10/2025
Shower pump replacement
Customer Service
Quality
Value
The inlet pipe to the shower pump fractured during use causing the house to be flooded. I was able to shut off the supply and called Darren. He came quickly and was able to effect a temporary repair and came back two days later and fitted a replacement for the old pump. Darren turned up as agreed and carried out the work in a methodical professional manner. The final bill was as provided in his written quotation for the work.
Customer in Hertfordshire Posted on 07/05/2025 , work completed 07/05/2025
Excellent
Customer Service
Quality
Value
Darren arrived promptly to service our boiler and also to rectify a fault as we had no hot water. Work completed same day and very reasonable charges. Would recommend and will definitely use again.
Customer in Hertfordshire Posted on 02/05/2025 , work completed 02/05/2025
Boiler service and repair to a leaking air vent
Customer Service
Quality
Value
Barry arrived on time to service my Worcester Bosch central heating boiler. His fee was stated in advance. He also spotted the source of a water leak which had been concerning me and had not been cured by a previous plumber. He returned later in the day to repair an air vent I have every confidence in Barry’s workmanship. In future I will be ask him to do further plumbing jobs
Customer in Hertfordshire Posted on 01/11/2024 , work completed 01/11/2024
Recommend
Customer Service
Quality
Value
Had my boiler serviced after Darren replaced it last year. As always, I was very pleased with his efficiency and his willingness to answer any questions I had. Cost as stated ahead of the visit. Would definitely recommend.
Customer in Hertfordshire Posted on 21/09/2024 , work completed 20/09/2024
Professional, prompt, polite and top quality work
Customer Service
Quality
Value
Darren does our boiler servicing and additional related work that may arise during the year. Having had some poor work done by another engineer in the past, Darren has sorted these problems and everything runs smoothly now. If only all tradespeople were this good and easy to deal with. Good prices too and responsive.
Customer in Hertfordshire Posted on 27/08/2024 , work completed 27/08/2024
Very Professional Service
Customer Service
Quality
Value
I called Darren this morning to see if he could fix my outside leaking tap. He provided a quote and came this afternoon to repair the leak. I found him to be very professional and knowledgable. He had a trainee with him and gave him good clear guidance and instruction. I would not hesitate to use Darren again or recommend him to others.
Customer in Hertfordshire Posted on 19/08/2024 , work completed 19/08/2024
Thoroughly professional, experienced, and took the trouble to explain
Customer Service
Quality
Value
I called Darren on a late Friday afternoon on first noticing a leak from my loft water tanks. He arrived first thing on Monday ready, not only to diagnose, but also to fix it. He gave me a price in advance of starting and stuck to it, despite access being difficult and my delaying him by asking him for advice/ quotes for other, less urgent plumbing work. He absolutely knows his stuff, and takes the time to explain without condescension. I shall definitely call on him again.
Customer in Hertfordshire Posted on 09/01/2024 , work completed 08/01/2024
Complete Professional
Customer Service
Quality
Value
The glowing reviews that Darren has received are thoroughly well deserved I chose him because of his Which? listing and also as he's Herts Trading Standards approved. He arrived within the time given, worked efficiently and is a complete professional. He fixed the leak in the loft that I'd originally contacted him about, also a problem with the downstairs toilet and gave me some very honest advice about another plumbing problem. He explained everything throughout, was very affable and charged a fair price. I would definitely use him again and would not hesitate in recommending him.
Susan in Hertfordshire Posted on 02/08/2023 , work completed 29/06/2023
The trader replied (on 02/08/2023)
Thank You very much for taking the time to leave feedback .
Gets the job done!
Customer Service
Quality
Value
I called Darren for assistance with replacing a thermostatic mixing valve for our bath hot water. He arrived within agreed time frames, and although I didn't get a firm job price up front due to some complexities of the work needed, his ballpark estimate was spot on. I was able to purchase the replacement part myself. The finished job looks really professionally completed as you would expect. I would not hesitate to recommend Darren for your plumbing needs, I certainly will be keeping his contact details to hand for any future work I may need.
Shane in Hertfordshire Posted on 14/03/2023 , work completed 14/03/2023
Shower pump investigation and replacement
Customer Service
Quality
Value
I contacted Darren of Priority Plumbing back in May regarding an erratic shower pump. He responded immediately and arranged a time to visit. He arrived on time and he was very personable and knowledgeable and made every effort to fix the problem. Unfortunately, the solution was to change the pump but Darren went to great lengths to try and limit the financial damage but in the end we agreed and he changed the pump and we now have a super efficient shower and a much quieter pump. Darren worked very efficiently, cleanly and he was very reliable.
Customer in Hertfordshire Posted on 24/06/2022 , work completed 16/05/2022
Excellent quick work once again
Customer Service
Quality
Value
Darren came to conduct emergency out of hours work on a leaking system. He gave a comprehensive quote immediately and was here within an hour, work completed in a professional and responsible manner. He is most pleasant to work with and gives a good explanation and overview of the work he does. When needed, we shall certainly use his services again. Thoroughly reliable and dependable throughout.
Customer in Hertfordshire Posted on 07/06/2022 , work completed 06/06/2022
Great job
Customer Service
Quality
Value
Darren did a great job of servicing our gas boiler and installing a new kitchen tap. Very pleased with efficient, tidy workmanship, I would definitely use his services again.
Customer in Hertfordshire Posted on 03/03/2022 , work completed 31/01/2022
Darren at Priority plumbers is highly recommended for the removal of old boiler and fitting of new Worcester Bosch boiler and necessary pipe work.
Customer Service
Quality
Value
We recently converted a bedroom into a bathroom on the first floor and wanted to replace an old boiler situated in the kitchen with a new Worcester Bosch combi boiler and situate it in the new bathroom. Darren made a site visit and quoted for the job including all necessary instillation, pipe work and drainage changes. Once on site he is very focused despite the building work going on alongside. He worked efficiently and thoroughly. Once the initial install was complete the bill I received was as we had agreed with no other costs. Once the building works and electric work was finished he returned to check the boiler, make sure the heating system was working smoothly and issue certificates. At the end of the job he made sure everything was left neat and tidy. Darren at Priority Plumbers has been looking after the plumbing in our late Victorian house for years. He communicates well, is always courteous and professional. He knows what he is doing and does a very good job. I highly recommend him
Customer in Greater London Posted on 22/02/2022 , work completed 17/02/2022
The trader replied (on 24/02/2022)
Thank you very much for taking the time to share your experience . I’m delighted to hear that you are pleased with the service you received.
Leak sorted quickly thanks to Priority Plumbers
Customer Service
Quality
Value
Darren managed to problem solve a leak coming through my kitchen ceiling very quickly, and repaired it with very little disruption to me. I had been let down by an emergency plumber who came to see the leak and left without doing anything (saying they needed to send in a quote), and a plumber from my insurance, who said I wasn't covered (even though they knew they were coming for a leak), so I was feeling very despondent with plumbers. Darren came in, looked at where the leak was coming in, went upstairs and got to work straight away. He was open and honest on the phone beforehand, about the potential damage to the bathroom or kitchen ceiling - depending on where the leak was, so I was prepared for everything. I'm very thankful that it was easy to locate and repair. Don't call anyone else for a leak or other plumbing issues - call Priority Plumbers.
Jo in Hertfordshire Posted on 10/12/2021 , work completed 09/12/2021
The trader replied (on 18/02/2022)
Thank you very much leaving a review. It’s much appreciated that you took the time to give feedback on your experience.
Excellent
Customer Service
Quality
Value
Darren is responsive, reliable, straightforward, knowledgeable, thorough and professional. I’ve had him in to sort a few boiler and heating related bits and also he recently helped us by sorting out the whole set up of a boiler installed by someone else that was just creating problem after problem No one’s favourite job - fixing someone else’s work - but he gave his quote, stuck to it and did the work and we’ve not had a problem since! Exactly what I needed.
Customer in Hertfordshire Posted on 03/10/2021 , work completed 06/09/2021
The trader replied (on 18/02/2022)
Thank you very much leaving a review. It is much appreciated that you took the time to share your experience.
Priority Plumbers Ltd
Customer Service
Quality
Value
Very professional nothing more to say other than would be happy to recommend Darren to service or replace your gas boiler
Customer in Hertfordshire Posted on 20/02/2021 , work completed 20/02/2021
Prompt response and very good service
Customer Service
Quality
Value
Our British Gas Homecare agreement cost £400pa but we were told 3 times to call back at the end of Feb as we were not an emergency having sent for 2 convector heaters online and able to use the immersion heater for hot water. The central heating gave out a few days later so we called Darren who came out the next day, changed the pump and got the central heating/hot water working again but said he thought it was temporary measure and we needed a power-flush. He came back a few days later at, 8.30am flushed the system, the boiler and balanced the radiators leaving at 8.00pm with the system and hot water piping hot. We could not switch off/turn it down at night so he came back the next day and opened the valves that had got stuck. The estimates provided were what we paid.
Customer in Hertfordshire Posted on 22/01/2021 , work completed 20/01/2021
Powerflush Heating System
Customer Service
Quality
Value
I called Darren of Priority Plumbers who came out promptly to assess why the downstairs radiators were not heating sufficiently. He clearly explained how a Powerflush could help to resolve this and provided a detailed quotation. He arrived at the agreed date and time and carried out a very professional job - following the Powerflush the radiators have never been so hot! In addition water was coming out of an overflow pipe and again Darren was able to sort this out in a timely manner. Darren is impeccable in wearing a mask and maintaining social distance. He takes pride in his work and I thoroughly recommend him.
Customer in Hertfordshire Posted on 20/01/2021 , work completed 18/01/2021
Fast, Professional and Reliable
Customer Service
Quality
Value
Managed to fit me in quickly and did a very professional job to fix a leak in my underfloor heating system. Practical approach. Explained what was going on. Very Covid compliant with mask and gloves and distancing. Good communications and was able to juggle the timings when I had to move the first slot we agreed. I will use Darren again for other work.
Customer in Hertfordshire Posted on 19/10/2020 , work completed 04/09/2020
Fixing central heating
Customer Service
Quality
Value
Darren was responsive when contacted and arrived promptly to assess why the radiators were not heating. He gave us a range of options to sort out the problem and carried out a power flush that has worked. Darren was prompt, worked very effectively, and tidily and was very mindful of how he worked and cleared everything afterwards. It was a relief to find such an honest trader.
Customer in Hertfordshire Posted on 16/09/2020 , work completed 09/09/2020
Fast Reliable Service!
Customer Service
Quality
Value
Darren of Priority Plumbers came out and increased the pressure on my boiler. Don't Laugh! I had the Worcester Bosch Greenstar boiler installed by Priority Plumbers in 2016 and although it is regularly serviced, I have never had to top up the pressure. Darren was very professional and addressed the problem efficiently, including showing me how to increase the pressure, should this problem occur again. As always, Darren was courteous, very knowledgeable - offering advice on cause of low pressure and respectable of his surroundings. I have no hesitation in recommending Priority Plumbers. I feel we all need to have the name of a good reliable and trustworthy plumber!
Customer in Hertfordshire Posted on 24/05/2020 , work completed 24/05/2020
Prompt service in an emergency
Customer Service
Quality
Value
We were impressed by Darren's prompt response from answering the phone,to arriving within half an hour quoting a price upfront.He managed to diagnose and repair a leaking cold water pipe which was causing damage to a ceiling,which if left for much longer could have wrecked havoc.The repair was in an awkward position but Darren persisted until the new pipe was satisfactorily in place,communicating with us his plan of action and was frank and fair about the likely cost.
Customer in Hertfordshire Posted on 16/04/2020 , work completed 16/04/2020
Excellent power flushing
Customer Service
Quality
Value
Several downstairs radiators did not get hot despite bleeding them and showed signs of being partly filled with sludge. I called Darren and he confirmed the system needed flushing and provided a detailed quote. He arrived early in the morning and put down protective sheets on the stairs and other work areas before commencing work. I requested a new pump be fitted with new thermostatic radiator valves. Darren worked methodically and showed me all the black sludge extracted from the header tank and the Magnaclean machine. All the work was done to a high standard and Darren stayed late to balance the radiators. Despite the extra time taken the cost was as in the original quote. Highly recommended.
Customer in Hertfordshire Posted on 13/02/2020 , work completed 13/01/2020
A trader you can trust
Customer Service
Quality
Value
Darren replaced the leaking water valve in our toilet. This might sound very simple, but our toilet is built in and therefore fraught with challenges. Explaining the situation, Darren gave me a price and a time frame he could attend our property. Darren arrived within the time frame he had given us and, although the repair was complex and very time consuming, Darren stuck to his initial quote. We thoroughly recommend this listing.
Customer in Hertfordshire Posted on 03/02/2020 , work completed 31/01/2020