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Across the UK and Europe, thousands of data centres are quietly reaching their expiry date.

They may still be running – but behind the scenes, costs are rising, risk is climbing, and performance is slowly degrading. Power inefficiencies. Cooling challenges. Fragile legacy systems. All too familiar, and increasingly unsustainable.

The truth is, patching and hoping isn’t a strategy. It’s a liability.

So why do so many businesses delay the inevitable?

Because transformation feels daunting. Because legacy estates are complex. Because there’s no clear path – or trusted partner – to take the first step.
That’s where we come in.
Digital abstract network wireframe infrastructure across UK and Europe

The Problem with Aging Infrastructure Isn’t Just Technical. It’s Strategic.

Data centres built 10–15+ years ago weren’t designed with today’s demands in mind. Their purpose, capacity, and technology footprint have changed – while their physical and operational DNA hasn’t.
That creates four major challenges:
  • Escalating operational costs from inefficient systems.
  • Increased risk of downtime due to hardware or system failure.
  • Limited scalability for new workloads and digital transformation.
  • Poor ESG performance, threatening both reputation and investment.
If you’re asset-heavy, opex-challenged, or ESG-exposed, it’s not just a facility problem. It’s a business case for change.

Why Most Organisations Delay and Why They Shouldn’t

We see it all the time: Leaders know there’s a problem, but don’t feel confident in the business case to fix it. Especially when decisions involve multiple stakeholders: IT, facilities, finance, and the board.
That’s why our approach starts with clarity – not cables.
Keysource delivers investment-grade assessments that cut through the noise, showing exactly what needs to change, how it can be phased, and the total cost and benefit across:
  • Risk reduction
  • Capex vs. opex efficiency
  • Sustainability uplift
  • Asset value improvement

At Garmin’s UK HQ, we replaced legacy cooling infrastructure and increased capacity through modular upgrades – all without disruption to operations. And at Datum’s flagship Farnborough site, we’ve supported a decade-long transformation, culminating in a new £7M data hall expansion delivered without downtime.

Modernisation Doesn’t Have to Mean Disruption

One of the most common fears? Downtime.

We understand. Many of the facilities we assess are mission-critical. That’s why we specialise in zero-downtime modernisation, applying smart design, phasing, and temporary infrastructure strategies to keep your estate running – while we upgrade it behind the scenes.

We’re not just designers or builders. We’re lifecycle specialists.

From initial health check to multi-year transformation roadmap, Keysource delivers the full journey: assess, design, plan, build, operate. No gaps, no handoffs, no guesswork.

Real-World Transformations

We’ve helped organisations across sectors unlock the full value of their infrastructure through live, strategic upgrades:

Garmin UK HQ – Replaced 2006-era cooling and increased capacity without business interruption.

Datum, Farnborough – Delivered a multi-phase lifecycle transformation – most recently a £7M expansion with lithium-ion UPS and HVO generators.

Ealing Hospital – Upgraded live NHS data centre with new UPS and precision cooling, ensuring continuity for critical services.

Speak to a lifecycle transformation expert

What’s Next?

Modernisation isn’t just about the hardware. It’s about resilience, efficiency, and future-proofing your business. If you’re managing or investing in aging digital infrastructure, it’s time to stop patching and start planning.
Let us help you build your case for change.
Get in touch
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