Last Updated: May 12, 2026By Categories:
Unilever Research and Development

Unilever Research & Development, Wirral — AHU Upgrades

Working at Unilever’s Research and Development facility in Wirral, Merseyside, our team delivered a comprehensive upgrade programme across multiple Air Handling Units — a complex, high-value project worth £726,480 carried out within a live, business-critical environment.

Each AHU was individually designed and upgraded to incorporate new EC supply and extract fans, DX coils, frost coils, and pre-heating coils, alongside full electrical and Building Management System works. With the AHUs serving critical areas throughout the building, the overriding challenge was to limit downtime to a strict two-day window per unit — requiring precise planning, coordination, and execution at every stage.


Each AHU was individually designed with CAD drawings, schematics, and full O&M manuals provided in hard copy and electronic format upon completion
Supply and installation of DX coils, EC fans, frost coils and pre-heating coils across all AHUs, with condensing units positioned on the main roof and interconnecting pipework routed to design specification

Full mains electrical works including a new MCB board, BMS control wiring configured to client requirements, and a two-day contract crane hire to lift all equipment onto the roof
  • Comprehensive AHU upgrades across a live R&D facility valued at £726,480
  • Mitsubishi Electric DX coils and condensing units installed with full roof-level pipework and cabling
  • EC supply and extract fans, frost coils and pre-heating coils replaced across all units
  • LTHW isolation and ductwork modifications carried out to accommodate new equipment
  • New MCB board supplied and installed with full testing and earth labelling on completion
  • BMS control wiring configured to client specification throughout
  • Two-day crane hire coordinated to lift all plant and equipment to roof level
  • Each AHU shut down, fitted, tested and commissioned within a strict two-day window

Critical systems upgraded without disrupting live operations

Precision planning inside one of the UK’s leading R&D facilities

Delivering a project of this scale and complexity inside an active research and development facility demanded more than technical expertise — it required meticulous programme management and a team experienced in working to tight operational constraints. Each air handling unit was taken offline only when new components were ready to install, with fitting, testing and commissioning completed within two days before systems were returned to service. The result is a fully upgraded, energy-efficient air handling infrastructure that supports Unilever’s facility for years to come.

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