What is a Heat Interface Unit – HIU Repair Services

HIU Units are commonly fitted in flats and apartment blocks. A heat interface unit (HIU) does a similar job to a domestic boiler but takes its heat from central source and distributes it to the property via a heat exchanger.

The unit also measures the amount of heat delivered for heating and hot water. The unit is an efficient way to distribute heating and hot water. It has the advantage that it does not require a flue unlike a gas boiler and is therefore safer.

Inside the HIU it comprises of a heat exchanger, heat meter, expansion vessel, pumps, valves and electronics. A regular HIU service is required to keep the unit working a maximum efficiency.

We can provide HIU service for individual units but you may find it more cost-effective to book a service for multiple units in the same location at the same time. Please give us a call for a quote.

HIU Specialist Engineers

Our specialists carry out HIU repairs to the highest standards and are well equipped to diagnose correctly any issues with your HIU on the 1st visit.

All of our HIU service personnel are fully trained to service Heat Interface Units. Our experienced HIU repair engineers are able to diagnose hot water and heating issues even if the cause is communal.

We can provide a written diagnosis on the fault to forward to your service or management company. Or if you prefer we can discuss the fault directly with them on your behalf.

Booking a service or repair visit. Our fee for an individual callout is £90 +VAT and can be booked via phone or our mobile App.

In addition to HIU services we have some of the most experienced and highly qualified Underfloor Heating engineers in London. Why not sign up for our combined UFH and HIU repair and service plans for peace of mind and avoid those unexpected high bills.