We are replacing four air handling units on the roof of the West Ward Block at Southampton General Hospital. The ward block links directly to the Centre Block, Lab and Path Block, Blood Transfusion, and Cancer Science facilities, which required careful coordination to protect clinical operations throughout the works.
The scope includes the installation of new roof-mounted general ventilation POD units supported by bespoke steelwork. We are delivering all associated structural preparation, ductwork cleaning, targeted duct alterations, and damper adjustments to improve air distribution. A new building management system is being installed with upgraded controls, wiring, and containment, alongside new CT heating pipework connections and electrical service modifications.
What we did
Delivery of a major ventilation upgrade to improve compliance, air quality, and system control within a critical hospital environment.
Specifications
- Replacement of four roof-mounted air handling units
- Bespoke structural steel framework for new plant
- New building management system with advanced controls
- Ductwork cleaning, alterations, and damper adjustments
- CT heating pipework connections and electrical upgrades
- LV distribution, lighting, and control cabling upgrades
- Fire alarm modifications and compliant fire stopping
- Lightning protection system modifications
- Removal of redundant mechanical and electrical services
Project Overview
Duration
Ongoing
Contract Value
£
4.4
M
The existing ventilation systems no longer met current HTM requirements, creating a need for replacement within a live healthcare setting. The rooftop location and proximity to key clinical blocks required detailed planning to manage access, sequencing, and system changeovers.
We implemented a phased approach supported by new LV supplies, control cabling, and BMS integration to ensure continuity of service. Roof plantroom modifications include new lighting, fire alarm changes, fire stopping, and updates to the lightning protection system. Redundant mechanical and electrical services are being removed to leave a clean and compliant installation that supports long-term performance and patient safety.
Innovations, challenges, solutions
We are upgrading life-critical ventilation systems while maintaining safe operation across connected hospital facilities.
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