HIU Installation London — Heat Network Specialists
Specialist HIU installation for new builds, refurbishments and unit replacements across London. We supply and commission all major HIU brands — Danfoss, SAV, Switch2, Caleffi, Alfa Laval and more — to the precise specifications of your heat network.
Done Wrong, It Costs Years
An HIU fitted incorrectly — wrong differential pressure settings, under-sized plate exchanger, poor pipe routing — will underperform from day one and fail early. HIU installation is specialist work that requires heat network experience, not just a plumbing qualification.
- Incorrect PICV settings causing under-supply
- Wrong plate exchanger selection
- Inadequate primary flow rate
- Poor commissioning — wrong temperature parameters
- Non-compliant pipework and terminations
- Missing or incorrect documentation for heat network operator
Specialist Installation, Properly Commissioned
We work with heat network operators, developers and property managers to deliver installations that meet the network's design requirements from day one.
- HIU selection and sizing based on your heat network specs
- Full unit supply or install-only on your procured unit
- Correct PICV, actuator and plate exchanger commissioning
- Primary and secondary hydraulic balancing
- Integration with BMS or metering systems where required
- Commissioning documentation and certification
- Post-installation performance verification
- Warranty registration and handover pack
Brands We Install
Related HIU work in London: HIU Repair London · HIU Service London · Bulk Servicing London · HIU Powerflush London
The Benefits
Right First Time
Correct sizing, commissioning and documentation mean the unit performs to specification from day one.
Warranty Protected
Manufacturer-trained installation keeps your warranty valid and documentation ready for any audit.
Future-Proof
We factor in your building's heat demand and future load growth — not just today's minimum.
“Collide Group installed a new HIU in our building. The work was completed on schedule, to a high standard, and with minimal disruption to residents.”
— Managing Agent, Wandsworth
Installation from £1,950
Prices vary by brand, complexity and access. We provide a free written quote for every installation project. No obligation.
Request a Free QuoteFrequently Asked Questions
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Related HIU Services
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