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Endorsed by Which? Trusted Traders

Add Detail Ltd

Profile thumb 9445   add detail   hiu logo

12 Reviews

Opening Hours
Today - 24 hours
  • Monday - 24 hours
  • Tuesday - 24 hours
  • Wednesday - 24 hours
  • Thursday - 24 hours
  • Friday - 24 hours
  • Saturday - 24 hours
  • Sunday - 24 hours


HIU (Heating Interface Unit) Services
Add Detail HIU Repairs Services have over 15 years experience installing, servicing and maintaining heating systems, including HIU (heating interface units) in London and surrounding areas.

We offer a comprehensive HIU service, from identifying and repairing leaks and HIU breakdowns, to full heating system installations. All work is carried out by our qualified and experienced HIU engineers and is covered by our 12-month guarantee as standard.

For more information please visit our website


HIU Repair Services - Add Detail Ltd.

- HIU (Heating Interface Unit) Services
- HIU Engineers
- HIU Repair
- HIU Service
- HIU Service Group Booking
- HIU Repair Group Booking
- HIU Replacement & Installation
- HIU Contract Maintenance

What we do

  • Gas installers

  • Boiler, central heating and gas engineers

    • Boiler installation
    • Boiler repair
    • Boiler servicing
    • Immersion Heaters
    • Power flushing
    • Radiators and central heating
  • Plumbers

    • Unvented cylinder installation and maintenance
  • Electricians

  • Carpenters

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.

12 reviews
Customer Service
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Endorsement Reference
Customer Service
I have had AddDetail complete a number of projects for me. The electrical and plumbing team have added sockets, external lights, fuse boxes, bathroom sinks, fitted radiators, and have completed plumbing maintenance (fixing taps and clearing drains). The construction side have build closets / wardrobes, fixed exterior holes, installed wall mounted television stands and replaced doors. The work has always been faultless, the team are polite and friendly and they leave no mess. Highly recommended.
Which? Trusted Traders Consumer Posted on 04/12/2020 , work completed 20/11/2020
The trader replied (on 05/02/2021)
Thank you!
Endorsement Reference
Customer Service
Completed a variety of works around the flat: new cupboard, repair to skirting board, repair of hinges in kitchen cabinets. Sigis is reliable and friendly. He has been ready to tackle any job, big or small, easy or difficult. I recommend him without hesitation.
Which? Trusted Traders Consumer Posted on 04/12/2020 , work completed 20/11/2020
The trader replied (on 05/02/2021)
Thank you!