RETROFITTING
Retrofitting is shaping modern healthcare
As energy costs rise, government Net Zero deadlines approach, and indoor environmental quality (IEQ) expectations tighten, the gap between what healthcare buildings can achieve and how they currently perform is becoming more apparent. Addressing this gap is increasingly shaping both operational priorities and longer-term strategic decision making. Darryl Gregory, VP of Sales for EMEA at Distech Controls, explains why retrofitting should be seen not as a compromise but as a key part of a strategic approach to future-proofing healthcare estates.
Across the NHS estate, there is a growing opportunity to enhance how building infrastructure supports operational performance and sustainability objectives. Thoughtfully designed retrofit programmes can help modernise building systems over time, enabling organisations to upgrade critical infrastructure in a staged and pragmatic way, while minimising disruption compared with more extensive redevelopment approaches.1
Modern retrofit programmes
are a practical route to upgrading the infrastructure of a building, without the disruption of a total rebuild. Hospitals and community healthcare facilities are unlike almost any other building type. They are energy-intensive, continuously occupied, and subject to strict regulatory requirements that govern everything from ventilation and pressure regimes to temperature and humidity. Yet, a significant proportion of the UK’s healthcare estate was built during the formation of the NHS in 1948, with over 43 per cent being built over thirty years ago and before 2000,2
designed for a different era and managed by
controls that were never conceived to handle today’s data volumes, sustainability demands, or security expectations.3 The result is an estate with untapped potential. In many cases, plant and underlying infrastructure are already in place, but there is an increasing opportunity to introduce greater intelligence to support how these assets are operated and optimised.
Retrofitting as a strategic approach Retrofitting is increasingly being recognised as part of the solution. Not as a compromise, but as a strategic approach. One that can support a faster, less disruptive, and more cost conscious pathway toward more efficient healthcare environments. Partnering with organisations across the country on this
transition has shown us that retrofit-ready technologies are now delivering measurable value, often without the disruption that would have made projects like this previously unviable.4
Today’s solutions make it possible to
reuse existing cabling, equipment rooms and even legacy controllers while bringing buildings into the era of IP-native, cloud ready performance, all with far less disruption, cost, and risk than traditional refurbishment. Commercial buildings constructed at the turn of the millennium or earlier were not designed to meet the demands of today’s digital-first operations, hybrid working models, or the increasingly stringent carbon performance standards shaping the UK property landscape. New developments alone cannot meet the scale or
urgency of today’s building performance challenges, and demolition or full redevelopment is often neither practical
September 2026 Health Estate Journal 93
nor financially viable. As older commercial properties face rising vacancy rates, tighter regulatory requirements, and evolving occupier expectations, where comfort, air quality, and seamless digital services are now fundamental, retrofitting has become the most pragmatic, economically sound, and future-ready path forward.
Making existing buildings future ready A common misconception is that a smart building must be newly built within the last 20 years or undergo a complete refurbishment. Significant performance and digital gains can be achieved by upgrading existing systems.5
Today’s
technologies make it possible to retain and optimise much of the existing infrastructure, delivering advanced functionality with minimal disruption. Most healthcare properties generate vast streams of
operational data. Sensors, controllers, meters and plant communicate constantly. Yet much of that data goes unused, leaving estates teams making decisions with a fraction of the insight available to them.6
Schedules drift,
setpoints go unchecked, sensors age out of calibration and systems that were once optimised become increasingly misaligned with how buildings are used. A modern retrofit approach begins with visibility, deploying trend logs, alarms, sub-metering and analytics across priority systems, and connecting those data streams
Healthcare facilities generate vast amounts of unused data.
AdobeStock / Antony Weerut
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