In partnership with NHS

Upgrading HVAC systems for NHS hospitals and medical centres

The upgrade of chiller systems and air handling units for NHS medical centres and hospitals, including the Princess Alexandra Hospital in Harlow and the Waltham Cross Medical Centre.

All work was undertaken in live medical environments, including theatres and wards, and demanded innovative working practices to ensure shutdowns were kept to a minimum. A full plan was produced in revit ahead of any work to ensure clean reconnections to existing gas and ventilation systems, and minimal disruption to the medical staff and patients. The Waltham Cross medical centre contained a Covid Hub that required a negative pressure system.

Key challenges:

  • Live medical environment requiring fast, efficient turnarounds
  • Work required during 2020 Covid-19 lockdown


  • Full system planned in Revit to ensure it’s effectiveness ahead of going on-site
  • Experienced team ensured that each upgrade was delivered quickly and
  • ‘Key Worker’ status was granted allowing us to work on site within Covid-safe

Products and Services Supplied:

Air cooled chiller units and condensing units, BMS
system including new inverters, control valves and actuators, coils, door seals and fan belts, cleaning services.

Project info

Client: NHS Trust

Value: £250,000 – £500,000