Why More UK Employers Are Offering On-Site Health Checks

Written by Dr. Simon Khela MBChB MRCGP, GMC Registered Doctor

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A few years ago, on-site health checks were something you'd mainly see at large corporates with dedicated occupational health teams. That's changed. I'm now approached regularly by employers of all sizes, from small professional services firms to manufacturing sites, asking about bringing basic health screening into the workplace. It's a genuinely interesting shift, and one worth understanding properly rather than following simply because competitors are doing it.

This article sets out why the trend is growing, what a well-run on-site health check actually involves, what the evidence does and doesn't support, and the practical considerations worth thinking through before committing to a programme.

Quick Answer: Why the Trend Is Growing

• UK sickness absence has reached its highest level in over 15 years, averaging 9.4 days per employee per year, up from 7.8 days just two years earlier.
• Presenteeism, being at work while unwell, is estimated to cost employers considerably more than absence itself, since it affects productivity without showing up in absence figures.
• Many common risk factors, such as high blood pressure and high cholesterol, cause no symptoms, meaning employees can be at risk without knowing it or seeking help.
• On-site delivery removes the practical barriers, taking time off, travelling, waiting for an appointment, that often stop people getting basic checks done at all.
• It's increasingly seen as part of demonstrating genuine duty of care, alongside other wellbeing investment, rather than a standalone perk.

What Is an On-Site Health Check?

An on-site health check is a voluntary, confidential health assessment delivered at the workplace, typically by a nurse or doctor, covering measurements such as blood pressure, cholesterol test, blood glucose, BMI, and a brief lifestyle discussion. It's fundamentally the same kind of assessment covered in general health screening, simply brought to the employee rather than the other way around.

It's worth being precise about the terminology here, because it's often used loosely. A voluntary wellbeing-focused health check is a different thing entirely from statutory health surveillance, covered in more detail below.

The Evidence Behind the Trend: Rising Absence and Presenteeism

According to the CIPD's 2025 Health and Wellbeing at Work report, based on responses from over a thousand UK HR professionals, average employee absence has risen to 9.4 days per employee per year, the highest level recorded in more than 15 years, and a sharp increase from 7.8 days in 2023. Mental ill health has overtaken other causes to become the leading driver of long-term absence.

Separately, presenteeism, working while unwell rather than taking time off, is widely reported to cost employers more than absence itself, precisely because it doesn't show up cleanly in sickness data even though it affects output and, in the longer run, employee health. None of this is unique to any one sector, which is part of why the conversation about proactive health support has broadened well beyond traditionally high-risk industries.

Statutory Health Surveillance vs Voluntary Health Checks: An Important Distinction

This distinction matters, and I see it confused often. Health surveillance, as defined by the Health and Safety Executive, is a legal requirement for employees exposed to specific occupational hazards, such as noise, vibration, or certain chemicals, and exists to detect work-caused ill health at an early stage. It's mandatory where relevant risks are identified, and it targets specific, known exposures.

A general on-site health check, of the kind covered in this article, is voluntary, broader in scope, and not a legal requirement for most employers. Employees can decline to take part without consequence, and it's designed to support general wellbeing and prevention rather than to monitor a specific occupational exposure. Treating the two as interchangeable, or assuming a voluntary check discharges a statutory health surveillance duty, is a genuine and fairly common mistake.

What a Typical On-Site Health Check Includes

Content varies between providers, but a reasonably thorough version typically covers:

• Blood pressure and resting pulse
• Height, weight, BMI, and sometimes body composition
• Cholesterol and blood glucose, usually via a finger-prick sample
• A brief lifestyle discussion covering diet, activity, alcohol, and smoking
• A short one-to-one conversation about the results, with practical next steps if anything is outside a normal range

This overlaps considerably with what's covered in a broader full health check, condensed into a shorter, more practical format suitable for delivery during a working day.

Session length is usually kept deliberately short, often 15 to 20 minutes per employee, precisely because uptake tends to fall sharply once an appointment starts to feel like a significant time commitment carved out of the working day.

The Benefits for Employers

• Demonstrating genuine duty of care, which increasingly matters for recruitment and retention, not just compliance.
• Creating natural opportunities for early conversations about health risks that would otherwise go unaddressed until they become a bigger problem.
• Signalling, through action rather than policy documents alone, that employee health is taken seriously.
• Gathering anonymised, aggregate insight into workforce health trends, which can usefully inform broader wellbeing strategy.

I'd also add a less quantifiable but genuinely real benefit: the conversations that happen around a health check often surface concerns an employee wouldn't otherwise have raised through formal HR channels, simply because the setting feels lower-stakes than booking a meeting to discuss a health worry.

The Benefits for Employees

• Convenience: no need to take time off, travel, or navigate booking a private GP appointment around a working day.
• Lower barrier to entry: many people who'd never proactively book a health check will take one up if it's simply made available at work.
• Privacy: results are shared with the employee, not the employer, in a properly run programme, addressed in more detail below.
• Early detection of risk factors that often cause no symptoms until much later.

On-Site Health Check vs Sending Staff to a GP or Clinic

Being Realistic: What the Evidence Actually Shows

It would be dishonest to present this as a straightforwardly proven return on investment, and I don't think that serves employers well. One of the most rigorous studies on this topic, a large cluster-randomised trial published in JAMA involving a major US employer, found that a comprehensive workplace wellness programme improved some self-reported health behaviours, but showed no significant difference in clinical health measures, healthcare spending, or absenteeism after 18 months.

This doesn't mean on-site health checks are worthless; it means the case for them is more nuanced than “it will cut your sickness absence bill.” The more defensible benefits are the ones covered above: genuine early detection for individuals, easier access to a basic check for people who wouldn't otherwise get around to it, and a visible signal about how seriously health is taken. Framing the business case around these, rather than promising a guaranteed reduction in absence costs, tends to hold up better under scrutiny.

It's also worth noting that a single US retail employer study, however rigorous, doesn't necessarily transfer neatly onto every UK workplace or every type of programme. Smaller, more targeted interventions, focused on a specific, well-understood risk rather than a broad multi-component wellness package, sometimes fare better in the evidence base, which is one reason I'd encourage employers to think about what specific problem they're trying to address, rather than buying a generic package because it exists.

Practical Considerations for Employers

• Confidentiality: individual results should go to the employee, not the employer. Employers should only receive anonymised, aggregate data, never named results, unless an employee explicitly consents otherwise.
• Data protection: any provider handling employee health data needs to comply with UK GDPR, including a clear basis for processing special category health data.
• Genuine opt-in: participation should be voluntary in practice, not just on paper. Pressure, even subtle, undermines both trust and the quality of the data.
• Following through: a health check that flags a risk factor without any onward support or signposting is a missed opportunity, and can leave employees feeling more anxious rather than better supported.

For employers wanting a more structured, ongoing presence rather than a one-off event, on-site medical clinics and assessments can be run on a recurring basis, which tends to build more trust over time than a single annual event.

Getting Started: What to Look for in a Provider

If you're comparing providers, a few questions tend to separate a genuinely well-run programme from one that's mainly a marketing exercise:

• Who actually delivers the checks, and what are their clinical qualifications? Blood pressure and cholesterol readings are only useful if taken and interpreted properly.
• What happens to an abnormal result? A credible provider should have a clear, described pathway for signposting employees onward, not just a printed leaflet.
• How is data handled, and who sees what? Ask this directly, and expect a specific, confident answer rather than a vague reassurance.
• Can the format flex to your workforce? A single fixed template rarely suits both a desk-based office team and a site with shift workers.

Common Myths and Misconceptions

• “On-site health checks are the same as statutory health surveillance.” They aren't. Health surveillance is a legal requirement for specific occupational hazard exposure; general health checks are voluntary and broader in scope.
• “Employers automatically see individual results.” In a properly run programme, they don't. Employers should only see anonymised, aggregate trends.
• “This will straightforwardly cut our sickness absence bill.” As covered above, the strongest evidence supports individual benefit and access, not a guaranteed reduction in organisational costs.
• “Only large companies can realistically offer this.” Providers increasingly offer scalable formats suitable for smaller teams, not just large sites with dedicated facilities.