How much does HIU installation cost?

Cost depends on the unit specification, access, and whether it’s a like-for-like replacement or a new install. We provide a fixed quote after a survey.

How long does replacement take?

A single-unit replacement is typically completed in a day, including commissioning.

Can you replace one brand of HIU with another?

Yes — we can recommend and install the most suitable unit for yourproperty, regardless of the brand currently fitted.

Do you handle installation across a whole block?

Yes, including phased, multi-unit replacement programmes for property managers and developers.

HIU REPLACEMENT | HIU Experts

HIU INSTALLATION LONDON

HIU Installation & Replacement in London

Whether you are replacing an ageing, inefficient or obsolete unit, or fitting HIUs into a new development, we install to manufacturer specification — commissioned and tested before we leave.

HIU installation and replacement in London, correctly specified, professionally installed and fully commissioned. HIU Experts provides specialist Heat Interface Unit installation and replacement across London.

WHEN YOUR HIU FAILS, WE GET IT WORKING AGAIN

No heating or hot water can quickly become a serious problem. HIU Experts provides specialist HIU repair and fault finding across London, diagnosing issues with control valves, actuators, PICVs, pumps and other critical components.

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Two unmounted heat interface units showing internal pipes and valves

Phased replacement, planned around residents

Replacing ageing units across a block? We can plan phased programmes that minimise disruption, working directly with managing agents, landlords, housing associations and developers.

PROPERTY MANAGEMENT SUPPORT

When Your HIU Fails, Everything Stops

A broken HIU means no hot water, no heating, and a stressful day for residents. General plumbers often can't diagnose HIU faults properly they don't carry the right spares and aren't trained on the control systems. That's why an HIU specialist should be your first call, not your last.

HIU REPAIR

No hot water or heating

Fault codes or flashing alarm lights

Banging, clicking or whistling noises

Lukewarm water at max setting

Leaks or dripping from the unit

Low or fluctuating flow temperatures

The unit is old, faulty, or parts are unavailable

The plate heat exchanger needs uneconomic repair

The current unit cannot support modern metering

Flow and return temperatures remain outside target

A block-wide heat network upgrade is planned

A full heat network upgrade is being planned

When to replace an HIU

We check flow and return temperatures, flow rate, pressure, PICV operation, actuator response and the plate heat exchanger before we quote so you get an accurate diagnosis and a fixed-price repair, not a guess.

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