ALL HIU SERVICES

Knowledgeable HIU Engineer
 — Lizzie B. from Canning Town, East London – E16. ( 24th of January )
The engineer arrived ahead of time and provided us with a very professional service. He was very knowledgeable and advised us about radiators which weren’t working properly. He was very polite and friendly. Thank you for coming so promptly.

Prompt Service
 — David H. from Hornsey, North London – N8. ( 23rd of January )
Good price, clear communication and prompt service. Highly recommend.

Excellent HIU Service
 — Adam JM. from South Tottenham, North London – N17. ( 22nd of January )
HIU Service, Excellent service, on time, efficient, professional, explained what was happening, happy to answer questions. Highly recommended. Many thanks.

HIU Repair

£110+vat (£132) per Hour

BOOK NOW
Monday – Friday
8am to 5pm

HIU Service

£110+vat (£132) Fixed Cost

BOOK NOW
Monday – Friday
8am to 5pm

HIU PART REPLACEMENTS

Are you looking for a more competitive price for HIU part replacements?
We can guarantee the best price on labour to replace HIU part in London.

HIU Service Group Bookings

Cost from £70+vat (£84)
per Service

BOOK NOW

Contract Maintenance Services

Property Management Companies
Letting Agencies
Leaseholder’s Groups

HIU Replacement & Installation

Our expert HIU engineers can visit your home anywhere in London and conduct a comprehensive inspection.

HIU Maintenance

Regular HIU Maintenance can save you both time & money by making sure your HIU is running as efficiently as possible

HIU Engineers

A Heating Interface Unit (HIU) engineer can help you plan and implement the HIU systems you need for your residential properties.

HIU Emergencies

We offer emergency HIU repair services across London. Just give us a call and let us know what is an issue and we will arrange a visit as soon as we can!

HIU Breakdown

We are a London-based HIU breakdown support provider and can identify the cause of repeated system breakdowns and do what’s needed to ensure your HIU functions seamlessly.

HIU Specialists

Looking for specialists who have decades of experiencing fixing Heat Interface Units (HIU)? If so, you’ve come to the right place.

What is HIU?

An HIU, or “heating interface unit” fulfils essentially the same role as a traditional gas boiler, however, is often used as a part of a communal heating network.

HIU Manufacturers

Please see the HIU manufacturers we are working with and the areas we cover.

Adam John Eades-Miller

2023-01-23

HIU Service, Excellent service, on time, efficient, professional, explained what was happening, happy to answer questions. Highly recommended. Many thanks.

john keily

2023-01-07

Excellent service

Grace Somers

2022-12-24

Very responsive, professional, and did a HIU service for us. Thank you!

Steven Brown

2022-12-20

These guys are very, very good. Up to now, we have struggled to find people who really know what they are doing with HIUs. The guys at Add Detail specialize in these systems, and know everything there is to know about them.Apart from that, they are a truly professional outfit. Their communication is consistently prompt and clear, they are reliable, and extremely thorough. You are never left guessing; they always make it clear what they will do, when they will do it, and what it will cost: and they stick to it.They are also very nice guys, and happy to share their knowledge so that you understand your HIU system better. I cannot recommend them highly enough: really great.

Oli

2022-12-11

Great service from Add details. Helped me to install the unit within a week's time as it just got colder. Sigis has been very responsive during both phones and emails. And Justin & Dave were both very punctual - during both inspection and installation. I would recommend their service to anyone who lives in apartment with HIU unit to repair or replace. Great value, hard working engineers and great customer service!

Maurizio Di Ianni

2022-12-11

It will be difficult to provide an accurate review after using Add Detail service only once nevertheless for me it was a 5/5. The HIU on my flat was serviced and the pump identified as stuck. I called Add Detail and gave me an appointment after 4 working days, not too bad considering it was winter time when most heating units are found faulty. The engineer arrived early which I appreciated and fixed the problem within 30 minutes. His job was clean and professional and overall I am happy with their service. As advised on their website I feel I paid a fair price for the job compared to other companies or contractors I have used before. If their work is consistently provided with the quality I has perceived I would recommend them and hire their services again.

Ivan Stojanovic

2022-12-02

Fast and very professional, transparent and responsive.

Richard Woolfe

2022-11-22

Excellent HIU servicing and repairs carried out by courteous and knowledgeable engineers. Cannot recommend Add Detail more highly- professional, tidy and fair priced.