• We Cover London
  • Office Hours: Mon-Fri 9am-5.30pm
    Sat 9am-1.30pm
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0203 444 0554



Your HIU experts

Quality Heat Interface Unit Services

RBG Services provides HIU repairs, HIU Service and fault finding to properties across London. We are London’s longest standing independent HIU repair, service and maintenance company!

The majority of new build multi-dwelling developments now benefit from localised heat transfer units, called Heat Interface Units (HIU), which are designed to operate in conjunction with a centralised boiler plant or district heating system. RBG Services provides HIU repair, HIU service and maintenance and fault finding to the secondary system including radiators, radiator valves (TRVs), room thermostat and programmer issues (Danfoss, Honeywell), zoning issues (motorised valves), thermostat upgrade (Danfoss, Honeywell including smart roomstats; NEST, Honeywell Evohome), HIU pressure issues, HIU leak, Magnaclean Filters, power flushing and more.

Contact Us

Keep your Heat Interface Unit Running Efficiently

Keep your HVAC System
Running Efficiently

Your Satisfaction is Guaranteed. Schedule a service today.

Your Satisfaction is Guaranteed. Schedule
service today.

0203 444 0554

We Specialise In

Our HIU Specialists are:

HIU Repair

We are experienced in working with industry leading models, including SAV Systems, Switch2, Evinox and Wilson, popular amongst developments across London. RBG Services will diagnose and repair your HIU in a professional and efficient manner.

HIU Service

An RBG Services HIU Service ensures the continued efficiency of your heating system. All manufacturers recommend appliances to be serviced annually.

HIU Upgrade

RBG offer various upgrades to your system to improve efficiency. Whether you are looking to install new radiator valves or want to control your heating remotely with a Smart Thermostat, we are able to help!