Book a heat interface unit (HIU) service & repair from £60.00

Regular HIU servicing helps your HIU run efficiently and provide you with a reliable heating & hot water supply. While your heat supplier is responsible for managing your heat network, maintaining the HIU may be your responsibility. But this doesn’t need to come at a huge cost.

If you are based in or around London, book a HIU service or repair to be scheduled around your day. We offer group discounts and multiple service levels to suit your budget.

View & compare our HIU services

About your HIU

If you’ve found yourself on this page, it’s likely that your home is part of a heat network, an efficient energy delivery system. This means that instead of having an individual gas or electricity boiler, your home has a heat interface unit (HIU).

This unit, connected to a centralised plant room through a series of insulated pipes, delivers reliable and instantaneous heating & hot water to your home. You have control over your energy use through room thermostats and hot water programmers, and a linked heat meter measures your consumption for accurate billing.

While your heat supplier manages the network, maintaining the HIU may be your responsibility as a leaseholder or tenant.

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Budget HIU service

£99 per HIU

£80 per HIU for a group booking of 6-10

£60 per HIU for a group booking of 11+

HIU service
Heat meter health check

All costs are inclusive of VAT.

Book now

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Standard HIU service

£149 per HIU

£130 per HIU for a group booking of 6-10

£110 per HIU for a group booking of 11+

HIU service
Heat meter health check
Record flow rates to assess system efficiencies
Temperature settings checked & adjusted upon request

All costs are inclusive of VAT.

Book now

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Advanced HIU service

£199 per HIU

£189 per HIU for a group booking of 6-10

£179 per HIU for a group booking of 11+

HIU service
Heat meter health check
Record flow rates to assess system efficiencies
Temperature settings checked & adjusted upon request
Underfloor heating or radiator health check
Repairs of HIU & fault diagnostics

All costs are inclusive of VAT.

Book now

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HIU repairs

£132 per HIU

HIU fault identification & repairs*
Heat meter fault identification & repairs*
Emergency callouts within 4 hours

*This excludes any parts required or labour over 3 hours. This will be quoted separately where needed.

All costs are inclusive of VAT.

Book now

In safe hands with our expert engineers

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Why HIU servicing matters?

Efficiency boost: Elevate your home’s energy efficiency with Insite Maintenance's expert HIU servicing.
Reliable heating: Servicing ensures your HIU continues to deliver you reliable and instantaneous heating & hot water.
Preventive care: Regular servicing prevents leaks, lime scale build-up, pump seizures, and high energy bills.

Why Insite Maintenance?

Proven expertise: With a combined industry experience of 50+ years, our certified engineers understand the CIBSE CP1 Heat Network Code of Practice (2020). This helps to ensure your HIU works in harmony with the entire heat network.
Cost-effective solution: Insite Maintenance offers efficient HIU servicing to prioritise your comfort and minimise energy costs. Plus, our group discounts and three different service levels help you find a service that suits your budget.
System longevity: Trust us for unparalleled expertise in heat network maintenance, maximising your heat network's lifespan.

A few of the HIU and heat meter brands we support

Danfoss

YGHP

Worcester Bosch Group

kamstrup

DIEHL Metering

Get in touch below to discover if we can service your HIU and heat meter.

Book a HIU service or repair with us today

Contact form

Call us

0120 031 6200

Our opening hours are Mon-Fri, 9am-5:30pm. Our Technical Resource & Planning team is unavailable on weekends and bank holidays.

For any residential enquiries, your scheme-specific phone number can be found on the 'My home' page.

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