Specialist mechanical & systems
HIU servicing and repair
Heat interface unit diagnostics, servicing and repair on communal and district heating networks.
What we do
Heat interface units sit between a communal heating network and an individual flat, and they are the point where most resident complaints surface. Poor hot water performance, slow response and noisy operation are often network or unit issues rather than anything wrong inside the flat.
Our engineers diagnose the unit and its interaction with the wider network, covering plate heat exchangers, actuators, control valves, strainers and controls. We service units on a planned cycle and attend reactive faults, reporting back on whether the fix is at unit level or needs addressing on the network.
What is included
Typical scope on this trade.
- Planned HIU servicing programmes
- Reactive fault diagnosis and repair
- Plate heat exchanger cleaning and replacement
- Actuator, valve and strainer works
- Controls and commissioning checks
- Reporting on network level issues
Where it fits
Found in modern blocks on communal or district heating, instructed by block managers and building owners.
See all specialist mechanical & systemsWhat to expect
Typical turnaround
Reactive faults are attended within 24 to 48 hours. Planned servicing programmes are scheduled annually or to the manufacturer's recommendation.
How pricing works
Servicing is priced per unit, with discounts for block wide or portfolio programmes. Repairs and component replacement are quoted after diagnosis.
Completion documents
- Service record per unit with date and works carried out
- Diagnostic findings and network level recommendations
- Component replacement log and commissioning readings
- Resident or block manager report summarising actions
Common questions
Frequently asked questions
What clients say
5.0 on Google from 230 reviews“Susanna is an absolute gem. She is incredibly efficient at getting everything booked and sorted quickly, and always keeps us in the loop. The maintenance teams are equally fantastic, the work is consistently completed to a high standard.”
Ask us to take a look.
Whatever's come up across your portfolio, a single repair or a full refurbishment programme, we'd welcome the chance to quote. Site surveys and quotes are free, so there's no cost or commitment in simply asking us to take a look.