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Trusted Traders

Heat Tech Services Limited

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198 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


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

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.

198 reviews
Customer Service
Sort by
Customer Service
The team from Heat Tech helped me to fix a small water trickling issue in the toilet bowl. I was very impressed that they brought their own shoe cover to maintain cleanliness. This is the first time I have seen a business so well prepared. They had everything required to do the job and explained the issue, quite clearly. Thank you
Customer in Buckinghamshire Posted on 16/11/2020 , work completed 13/11/2020
Excellent service
Customer Service
A very reliable and helpful company to deal with. Calls returned very quickly and the work carried out very efficiently and reasonably priced. I would not hesitate to recommend Mark and his team.
Customer in Hertfordshire Posted on 11/10/2020 , work completed 07/10/2020
Boiler service
Customer Service
No problems at all. Service completed, Sapphire tested water function as well Price fine, would recommend them. Thank you.
Customer in Hertfordshire Posted on 10/10/2020 , work completed 06/10/2020
Repair to Noisy Hot Water Tank
Customer Service
When continuous rumbling sounds came from our hot water tank we asked Heat Tech to investigate. A convenient date was arranged followed by an email confirming the date & time they would arrive. After the problem was identified we were told that a replacement hot water zone valve was needed as well as a new circulation pump head. These parts had to be ordered and after a few days we were contacted and Heat Tech came to complete the repair. At all times the staff were polite and kept us informed of the work and how long it would take. We can highly recommend Heat Tech for their efficient and professional service.
Customer in Buckinghamshire Posted on 23/09/2020 , work completed 09/09/2020
prompt and efficient
Customer Service
Thanks Mark, and to the delightful Sapphire who completed the work. This was only a small job but done to the usual high standard I always enjoy with Mark Ockenden's team.
Customer in Hertfordshire Posted on 14/09/2020 , work completed 10/09/2020
Full Boiler system extraction and system replacement - VERY professional
Customer Service
Outstanding job by Mark, Sapphire and the rest of the team. Very professional in the initial diagnosis of the old boiler system; transparent on what the problems were and the options open to me; competitive quote and invoicing process for the new combi boiler system which they recommended to replace my old system. The old boiler system was quite a antiquated installation but Sapphire and her team got to work straightaway and were simply excellent in extracting that and installing a fully functioning replacement Vaillant combi boiler and NEST thermostat system - and in a very fast and efficient time too. The Heat Tech team are highly recommended (they came recommended to me too), very trustworthy and I will continue to use their services in future.
Customer in Buckinghamshire Posted on 07/09/2020 , work completed 11/08/2020
Impeccable service
Customer Service
We needed to have a second boiler pressure gauge and filling loop installed as the existing controls were all in the loft and being in our seventies this was extremely difficult for us to access. We contacted HeatTech who gave us a quote which we thought was very reasonable and asked them to go ahead. The engineers arrived punctually were friendly and helpful and carried out the work quickly and efficiently. We can highly recommend this company and we will definitely use them again.
Customer in Buckinghamshire Posted on 22/08/2020 , work completed 18/08/2020
Replacement radiator
Customer Service
Heat Tech quoted for a new central heating radiator and delivered the requested one a couple of days before the installation. I did not like to size and style of it. Mark Ockenden collected it without quibbling and fitted a much better one on the scheduled date. The work was neat and furthermore his invoice was less than his quotation to account for the alternative radiator. He has done several other heating & plumbing jobs for me in a proper, professional way. I recommend Heat Tech.
Andrew - Rickmansworth Posted on 12/08/2020 , work completed 10/08/2020
New boiler and hot water system
Customer Service
Heat Tech re-configured the heating system in a flat I rent out. This involved installing a new combi boiler and removing the pressurised water tank system. The work was complicated and carried out to a high standard, with little mess left. My life was made easy with Mark Ockenden working directly with the tenants in a sensitive manner. The job started and finished on schedule and to budget. I have no hesitation in recommending Heat Tech as a professional and competent company.
Customer in Hertfordshire Posted on 04/08/2020 , work completed 23/07/2020
Outstanding Service.
Customer Service
Left a message for Mark re radiators getting warm when only hot water activated. Dripping and vibrating cold tap. Boiler service. He returned my call the same day and said it could be dealt with the next day. The next afternoon, at the appointed time, arrived Engineer Sapphire and her assistant Ethan. They were thoroughly professional, polite, efficient and tidy. I can’t speak highly enough of the whole service. Everything was fixed and for a very reasonable price. I would have no hesitation in highly recommending Heat Tech and I would certainly use them again.
Customer in Buckinghamshire Posted on 31/07/2020 , work completed 28/07/2020