We are expert in


HIU ( Heat Interface Unit ) repair

We are well equipped and trained to provide HIU repair, service and maintenance in London and surrounding areas.


Hot water cylinder / Thermal store repair

Hot water cylinders and thermal stores have become extremely sophisticated offering…


HIU ( Heat Interface Unit ) Service

Regular HIU servicing is a great way of ensuring that your  Heat Interface unit…


Hot water cylinder / Thermal store service

Annual service for unvented cylinders and thermal stores includes testing safety valves…




We carry out all aspects of plumbing & bathroom installations from replacement washers to…


HIU repair, servicing, break down & maintenance ( Heat Interface Unit ).

We repair and service any type of HIU unit where ever you have an Evinox, Danfoss redan, KVM Energy, potterton commercial, Meibes, Rhico, Heatsadia or any another make / model. Our highly qualified engineers provide the highest standard of service.

Our vehicles are stocked with the most commonly used parts so we can usually complete the job on the same day.


    Free advices
If you are struggling to heat your home then call us. We will be happy to help and guide over the phone on how to turn your heating or hot water on. If you don’t have heating or water due to a defective Heat Interface Unit, hot water cylinder, thermal store or controls like programmer, timer and room thermostat then our highly qualified engineers will be happy to repair it for you.

    No hidden fees £
AT LHE  – London HIU Engineers we do free quotes and there are no hidden fees .In fact we won’t ask you to pay until the work has been completed to your up most satisfaction.

What people say?


P Patel

Extremely competent and efficient, I highly recommend them !

S Dawson

I am very pleased with the service from Rachik at London HIU Engineers, he turned up promptly and he has done a great job at a fair price. Will certainly be using their services again.

M Kureya

Very pleased with the service provided ! I got a quick response to my email, the engineer excellently explained what the issue was and fixed it very efficiently ! Absolutely worth every penny ! I would definitely use them again.

Wang Poon

I am very happy with the work completed and help given. Have kept the details and would have no hesitation using them again for any further work we may have.

V Baker

I would have no hesitation recommending London HIU Engineers to anyone. The work was carried out by a professional and he was prompt, efficient, very swift and friendly. I placed a call in the morning and by lunch time the job was done and done well. I will be sending more work their way!

J Carr

The engineers are all extremely knowledgeable and friendly. Their work is always finished to the highest standard and always very prompt.

I cant recommend London HIU Engineers highly enough.


T Williams

Top of the range! Definitely worth recommending to clients as the work is carried out proffesionally.

W Burrow

Brilliant service. Competitive pricing, arrived on time and the work was carried out efficiently. I wouldn’t hesitate to use them again and highly recommend them

C Edwards

Fantastic engineers! So polite, professional and especially not patronising like most of them are. I was surprised how fast they arrived at my flat and the amazing job they have done. I couldn’t recommend them enough. Plus they are cheaper than the others! Thanks guys

D Taylor

Can’t recommend Rachik highly enough! He is very knowledgeable and his quality of work is outstanding and very professional! Would highly recommend to anybody!

A Warner

Big thanks to David for fixing my heating. Please send me a reminder when my hiu service will be due.

E Orozco

Good and professional service.

L Shan

I called many plumbers to fix my  hot water but they all failed and said we don’t know how to repair my hiu, I called your company and your Engineer Joel fix it for me, he was very nice and polite. Thank you so much

Some of the makes we repair, service and install:

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