Endorsed by Which?

Heat Tech Services Limited

4.9

382 Reviews

Opening Hours
Today - 08:00–18:00
  • Monday 08:00–18:00
  • Tuesday 08:00–18:00
  • Wednesday 08:00–18:00
  • Thursday 08:00–18:00
  • Friday 08:00–18:00
  • 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

About

We are a Gas Safe™ Registered company based in Chorleywood Hertfordshire providing domestic heating and plumbing services to clients throughout Chorleywood, Rickmansworth, Amersham, the Chalfont’s and surrounding local areas in Herts, Middlesex and Bucks.
Established in 2003 we have built up a reputation for providing a
first class service at a reasonable price to our many local customers.
Our services include:
Boiler servicing, fault finding and repairs.
Boiler replacements and heating system upgrades.
Complete new heating systems.
Hot water cylinder replacements.
Hot water upgrades, including mains pressure hot water systems.
Radiator additions, replacements and/or valve replacements.
Heating system Power Flushing for improved performance and reduced running costs.
Heating/hot water control system fault finding, repairs and upgrades.
Shower pump installations and replacements.
Installation of heating system filter's for protection of boiler and pump.
Landlords gas safety checks.

What we do

  • Plumbers

  • Heating contractors

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

    • Gas emergencies
    • Radiators and central heating
    • Boiler repair
    • Boiler servicing
    • Boiler installation
    • Gas safety testing and inspection
    • Immersion Heaters
    • Power flushing
  • Kitchen fitters

    • Kitchen installation
  • Bathroom fitters

    • Bathroom Installation
  • Renewable energy

    • Air source heat pumps

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
382 reviews
Customer Service
5.0
Quality
5.0
Value
4.9
Sort by
Annual boiler service
Customer Service
Quality
Value
Mark and his team have carried out annual services on my domestic boiler for some years. The team are utterly professional and work quickly, efficiently and to the highest standards. Charges are fully explained in advance and on each occasion I have been invoiced for the pre agreed sum. Excellent.
Alison in Hertfordshire Posted on 23/09/2022 , work completed 22/09/2022
Amazing
Customer Service
Quality
Value
I called Mark to get my hob commissioned after my kitchen fitters fitted the kitchen, he came round very promptly, spent half an hour making sure my gas supply was ok but more importantly made sure I was strong enough to turn the gas off if the need arose.
Customer in Hertfordshire Posted on 10/09/2022 , work completed 06/09/2022
Consistently good service
Customer Service
Quality
Value
I have used Heat Tech for a number of years now and they continue to deliver prompt, friendly and reliable service.
Chris in Greater London Posted on 13/03/2023 , work completed 02/03/2023
Water Leak - amazing Advice followed by a prompt repair & excellent aftercare
Customer Service
Quality
Value
We had a mains water leak which had obviously been going on for some time with water saturating an internal, but load bearing wall. I had no hesitation calling 'Heat Tech Services' as I knew I would receive an excellent and prompt solution at a fair price. As it was the weekend and Mark was busy, he could not actually get to us until the following week. He was incredibly helpful, giving the best temporary solution, including what we could do ourselves to save time and money before they could come to fix the pipe. The pipe was excellently and quickly fixed by the end of Monday. The site was left clean and clear of debris. I felt like a very stressful situation was calmly, expertly and promptly sorted without causing a financial headache. I had a query regards moisture on the pipe after the job was completed and Mark thoroughly explained the possible reasons and asked me to call back if I was still concerned. The workers mended the pipe perfectly and saved us a lot of hassle over a very busy Christmas period. Thank you. I cannot recommend Mark and his team highly enough.
Lise in Hertfordshire Posted on 01/01/2023 , work completed 19/12/2022
Always helpful
Customer Service
Quality
Value
For the second time this year we have had to call Mark out for an issue. He went through it all on the phone and arranged for someone to come out on the day. Which we were extremely grateful for esp in the cold. We can’t fault the service with Heat tech, thank you for your help Mark and team.
Customer in Hertfordshire Posted on 01/03/2023 , work completed 23/02/2023
Life saver
Customer Service
Quality
Value
After contacting about 7 plumbers who never got back to me, Mark was recommended through a friend. Him and his team ended up coming back 3 times in one day to fix separate problems (its an old house) and i honestly can not fault their work. I am forever thankful for their help and would recommend them to anyone without hesitation.
Customer in Hertfordshire Posted on 02/03/2023 , work completed 27/02/2023
Prompt professional & helpful, definitely recommend
Customer Service
Quality
Value
I had a problem with an overflow pipe in the loft and also a radiator that wasn’t working. Heat Tech arrived on time the next day and solved both issues and also answered questions about the heating system which was really helpful.
Customer in Buckinghamshire Posted on 16/01/2023 , work completed 12/01/2023
5 Star
Customer Service
Quality
Value
Mark has been me go to plumber for about 5 Years. The following work was carried out to my complete satisfaction. Service Boiler. Replace leaking radiator. Replace plastics pipe work with copper to the central heating pressure vessel. 5 Star work from a 5 Star company. What more can you say.
Customer in Hertfordshire Posted on 23/10/2023 , work completed 23/10/2023
Boiler Service
Customer Service
Quality
Value
We have used Heat Tech several times over the past few years to fix emergency issues with our heating. Always extremely reliable, efficient and pleasant to deal with. This time it was a planned visit for a boiler service. 100% delivered as anticipated.
Customer in Hertfordshire Posted on 13/09/2023 , work completed 11/09/2023
Fantastic service
Customer Service
Quality
Value
I called Mark at Heat tech on Tuesday 13th, he arranged for George to come on Wednesday 14th. They arrived, as promised, at 8:30 am, the work was carried out within a couple of hours. They were so tidy and polite, the workspace was left clean and tidy after having two radiators removed from both sides of a wall. collateral damaged done to the floor in the dining room which was okay as floor is coming up anyway, but I was kept informed at all times as to what had to happen. The next good surprise was the invoice I received, very pleasantly surprised at the charge for the job. I was recommended Heat Tech by a neighbour and am so glad she did, any plumbing jobs I need doing in the future will be with Heat tech, and yes I will definately be recommending them to others in the future. Thank you again gentlemen for your stirling work
Customer in Hertfordshire Posted on 17/02/2024 , work completed 14/02/2024
Prompt Service
Customer Service
Quality
Value
They diagnosed the problem and fixed my boiler pump on the same day that I telephoned them. Workman was pleasant to deal with. Very happy with both the service and the work completed.
Customer in Hertfordshire Posted on 19/02/2024 , work completed 06/02/2024
Central heating pump issue
Customer Service
Quality
Value
Replied promptly. Arrived on time. Helpful and personable engineers. Diagnosis and repair completed efficiently. Will use again for our boiler service.
Customer in Buckinghamshire Posted on 01/04/2024 , work completed 20/03/2024
Fast and reliable, as always
Customer Service
Quality
Value
I’ve used HeatTech before and they’ve always been excellent. This time one of my heating pumps (not installed by them) sprang a leak and we had to shut the whole system down. HeatTech got someone here within a couple of hours of my call, and did their usual highly professional job of fixing the problem and replacing the damaged components. Highly recommended.
Customer in Buckinghamshire Posted on 05/01/2024 , work completed 04/01/2024
Excellent Service
Customer Service
Quality
Value
Excellent service and response from this local plumber. 100% recommended for any plumbing, central heating and boiler repairs
Customer in Hertfordshire Posted on 08/02/2024 , work completed 31/01/2024
Replacement of 20 year old boilers ( x2)
Customer Service
Quality
Value
Mark was incredible knowledgable and thorough when he visited us and went through in detail our old system with two boilers over 3 floors. He checked and double checked how it all worked and how to improve our system with a new boiler. The quote arrived quickly and dates booked in. Sapphire, the chef engineer plus 3 other engineers, arrived on time and with respect to our home, took everything out and replaced the new system , looks like a pice of art now and not spaghetti junction!. Nothing was a problem, any queries checked and resolved. I highly recommend if you want a water/ gas related job, large or small, then use Heat Tech. Best decision I have made this year about who to replace our boiler with. Great Team Mark, thank you for sorting out a long time problem. Erica
Customer in Hertfordshire Posted on 27/06/2024 , work completed 01/05/2024
The trader replied (on 08/07/2024)
Thank you for your custom and your great review. We are pleased to hear you are very happy with our work and will pass on your comments to our engineers.
Excellent service
Customer Service
Quality
Value
The work was carried out in a professional manner, on time and by a very helpful team. Would highly recommend.
Customer in Greater London Posted on 11/11/2024 , work completed 07/11/2024
Boiler Service
Customer Service
Quality
Value
Arrived on time. Cheerful pleasant engineer. Advised me that the Vaillant boiler might need a new fan at the next service. Reasonable bill. Happy customer as always with this company.
Customer in Hertfordshire Posted on 16/01/2025 , work completed 15/01/2025
Totally Reliable
Customer Service
Quality
Value
We have been using Mark to service our boiler and tank for about 8 years now and cannot fault his work. He has always worked efficiently , been extremely polite and courteous and we have never had any reason to complain about anything. We trust him 100%
CMR403085029 Posted on 04/09/2014 , work completed 04/09/2014
Excellent Plumbing and Central Heating Work
Customer Service
Quality
Value
Having used HeatTech on a number of occasions over recent years, I would happily recommend them to anyone I know. I have been very happy with the quality of their workmanship and service. Work undertaken for me has included; boiler services, radiator installation work, general plumbing and repairs. All good value too.
Sean53 Posted on 16/11/2014 , work completed 16/11/2014
Rescued!
Customer Service
Quality
Value
A prompt response by Mark & his team to our broken down boiler. James & Louis arrived promptly to efficiently locate & repair an elusive fault. All working again thank you Mark, James and Louis.
Gillian Posted on 18/11/2014 , work completed 18/11/2014
Boiler Service & to fix lukewarm Radiator
Customer Service
Quality
Value
With Christmas round the corner t occurred to me that it was time for the central heating to pack up: it was last attended to by Mark 2 years ago, so to last this long with no problems he must have done a good job then ! Anyway, I 'phoned him and asked if he could manage an early appointment as I needed it doing before Christmas but, moreso, family illness was complicating things, so the earlier the better. As ever he pulled out all the stops and was here with his young assistant at the appointed time within a few days ! The boiler service went smoothly and efficiently and so too did the fixing of the lukewarm en suite radiator and all was tidied up and made good afterwards. In all, a most professional service as ever. I would not want to use anyone else for all things to do with boilers/heating & plumbing. I thoroughly recommend Mark Ockendon & Heat Tech.
mike Posted on 07/12/2014 , work completed 07/12/2014
Life saving service
Customer Service
Quality
Value
Heat Tech carried out a service on our old boiler and he managed to bring it back to life and also eliminate all of the Carbon Dioxide it was emitting. Truely great service. I have no hesiation in recommending Heat Tech!
2014tt2014 Posted on 12/08/2014 , work completed 12/08/2014
Excellent service from Heat Tech
Customer Service
Quality
Value
Very professional service from Heat Tech engineers, the boiler needed a service and I also had a new thermostat installed. James talked me through everything he found and patiently showed me how to set the new thermostat. Mark returned a few days later with some additional parts which needed to be replaced. All work was carried out well and I am very pleased with the service received. I will definitely be using Heat Tech again.
CMR403231391 Posted on 30/05/2015 , work completed 30/05/2015
Boiler repair
Customer Service
Quality
Value
A cold November day when my boiler packed up, no central heating or hot water. Phoned Mark, he was with me within a very few hours, fixed the boiler and showed me how to avoid similar problems. I will certainly call on him again for any plumbing or boiler needs.
Eleanor Posted on 07/12/2015 , work completed 07/12/2015
Consistently good service
Customer Service
Quality
Value
We have used Mark and his team for some years and will continue to do so. He and James are highly professional, knowledgeable and personable. Highly recommended.
Ajjntj Posted on 27/07/2015 , work completed 27/07/2015