The state of the NHS estate has become a critical topic of national concern. Behind the headlines about waiting lists and service pressures lies another challenge with deep implications for patient safety, operational efficiency, and long-term sustainability: the NHS maintenance backlog — and it’s larger than ever before.
A Backlog That Has Ballooned
The NHS’s maintenance backlog refers to essential repairs and reinstatement work that should already have been completed across hospitals, clinics, and other NHS facilities. This isn’t planned expansion or future-facing capital work; it’s overdue maintenance — roofs, structural repairs, mechanical and electrical upgrades, and safety-critical updates that are still outstanding.
According to the most recent NHS Estates Returns Information Collection (ERIC) data, the estimated cost to clear this backlog has risen to around £15.9 billion — a 15–16 % increase in just one year, and significantly higher than figures from only five years ago. High-risk and significant-risk repairs (those likely to impact safety or critical operations if left undone) now make up a substantial portion of this total.
To put this into perspective, this backlog now exceeds the annual cost of running the NHS estate itself and dwarfs many individual trusts’ capital spending plans.

Why the Backlog Has Ballooned
Several long-standing factors have contributed to this unenviable position:
• Chronic Underinvestment: For over a decade, capital funding for estate upkeep has lagged behind need. In many cases, capital budgets were redirected to plug immediate revenue shortfalls, leaving urgent maintenance unfunded.
• Aging Infrastructure: A sizable proportion of NHS buildings are decades old — with many constructed long before modern clinical or engineering standards were set — meaning they require more frequent and more significant intervention.
• Escalating Costs: As maintenance is deferred, minor defects often become major ones — broken lifts, leaking roofs, outdated electrical systems, and inefficient HVAC units all become costlier to fix the longer they are left.
• Rising Risk Profiles: The latest figures show that a growing share of the backlog is in the highest risk categories, meaning any further delay increases the risk to patient and staff safety.
The result: a backlog that not only weakens NHS facilities but jeopardises service reliability and morale.
What the NHS Needs Now
The NHS is under immense pressure to address this maintenance deficit while continuing to deliver high-quality care. Simply allocating more money isn’t enough on its own. What’s required is a concerted programme of multi-disciplinary works — spanning urgent safety rectifications, condition-based refurbishments, and planned upgrades — delivered efficiently and with minimal disruption to ongoing health services.
Why Oander Is Ideally Positioned to Help
At a time when competence, reliability, and healthcare-sector experience are vital, Oander stands ready as a trusted partner in the NHS’s effort to tackle its maintenance challenge.
Here’s why:
✔ Proven NHS Experience
Oander has a wealth of experience delivering maintenance, repair and refurbishment projects across NHS trusts. Oander understands the governance, compliance and safety frameworks specific to health estates — vital in environments where patient care never stops.
✔ Technical Expertise Across Disciplines
From mechanical and electrical systems to structural and building fabric works, Oander’s multi-specialist capabilities mean projects can be delivered in an integrated, cost-effective way.
✔ Minimising Disruption
Oander’s teams routinely work around operational NHS sites, planning works to ensure continuity of care — a crucial consideration when dealing with facilities where downtime can equate to risk.
✔ Safety and Compliance at the Forefront
Healthcare facilities are among the most regulated building types in the UK. Oander has the experience and accreditations necessary to deliver in environments where strict health and safety, infection control, and operational continuity are non-negotiable.

Going Forward
With a maintenance backlog that has reached record levels, the need for action is urgent. But with challenge comes opportunity — the chance to transform ageing NHS estates into safe, efficient environments that support staff, patients, and the wider healthcare mission.
Oander is committed to playing its part in that transformation, offering practical, experienced, and dependable support for maintenance programmes that will clear the backlog and help shape a resilient NHS estate fit for the future.
For more information about how Oander can support NHS maintenance projects, please drop us a line.



