Protecting the health of employees is a key responsibility for every employer. In many industries, particularly those involving exposure to noise, chemicals, vibration, dust or other workplace hazards, monitoring employee health is not just good practice, it can also be a legal requirement. Occupational health surveillance helps employers identify early signs of work-related ill health and ensures that control measures designed to protect staff are working effectively. When implemented properly, it can reduce long-term sickness absence, prevent serious health conditions and demonstrate that an organisation is meeting its duty of care.
However, many businesses are unsure when this is required, what the law says, and how much it typically costs. In this article, we explore when health surveillance is necessary, the benefits it brings to employers and employees, and what organisations should expect when putting a programme in place.
What is Occupational Health Surveillance?
Occupational health surveillance involves regular, structured health checks that help identify whether workplace activities are impacting an employee’s health. Unlike general health screening, it focuses specifically on risks that arise from the work environment.
The purpose is to identify early signs of work-related illness, monitor employees’ health over time, and confirm that the safety measures in place are effectively protecting staff.
Information gathered through health surveillance can also help employers make informed decisions about workplace adjustments, training needs and improvements to policies or procedures to reduce risk.
The Benefits
Occupational Health Surveillance provides long-term protections to employees from workplace risks. It also creates a safer and healthier working environment. Main benefits include:
Early identification of work-related health issues
- Detects early signs of conditions such as hearing loss, respiratory problems or skin disorders
- Allows employers to take action before issues develop into more serious health problems
- Helps ensure workplace control measures are working effectively
Reducing sickness absence and long-term health problems
- Identifies health concerns at an early stage so adjustments can be made quickly
- Supports employees before conditions worsen or lead to long-term absence
- Helps maintain workforce productivity and reduce disruption
Supporting legal compliance
- Demonstrates that the organisation is taking reasonable steps to protect employee health
- Helps employers meet their health and safety duties where exposure risks exist
- Provides evidence that workplace risks are being monitored and managed appropriately
Improving workplace safety culture
- Shows employees their health and wellbeing is taken seriously
- Encourages openness around reporting symptoms or health concerns
- Reinforces a proactive approach to managing workplace risks
When is Occupational Health surveillance required?
This is required when a risk assessment has been completed and it has identified staff remain exposed to health risks even after protective measures have been put in place. This includes:
Physical Dangers:
Employees may be using vibrating tools at high noise levels that can cause Hand-Arm Vibration Syndrome, or hearing loss.
Hazardous Substances:
This includes detection of exposure to fumes, dust, chemical agents, or solvents that has a higher risk of causing dermatitis, asthma or cancer.
Work Conditions
When staff work in environments such as extreme temperature, or compressed air.
Evening Workers
Health assessments must be offered to staff working at least 3 hours at night.
What Is Involved in Occupational Health Surveillance Checks
The type of health surveillance required will depend on the specific risks identified in a workplace risk assessment. The aim is to monitor employees who are exposed to particular hazards and identify any early signs of work-related ill health.
In practice, health surveillance may include a range of checks. This could involve health questionnaires, skin inspections, hearing tests, lung function tests, or medical assessments carried out by an occupational health professional. Some checks may be completed regularly, such as annually, while others may take place when an employee starts a role and at intervals afterwards.
The results are used to identify whether workplace controls are working effectively and whether any adjustments or further investigation are required. Employers will normally receive a fitness-for-work outcome, while individual medical information remains confidential between the employee and the occupational health provider.
How much does Surveillance Checks Cost?
Occupational Health Surveillance costs can start from £75 per employee. This depends on the type of surveillance required and the amount of employees going through the checks.
Enforcement action and fines due to non-compliance can have a serious impact on your business. Therefore, it is far more cost-effective to be proactive rather than reactive.
Is it a legal requirement?
Employers are required to maintain health records for employees who are subject to health surveillance. In some cases, these records must be retained for a significant period. For example, where employees have been exposed to asbestos, health records must be kept for 40 years.
How The HR Booth Can Help
Understanding when occupational health surveillance is required and how to implement it properly can be challenging for employers, particularly in industries where workplace risks must be carefully managed.
At The HR Booth, we support businesses by reviewing workplace risks, advising when health surveillance may be necessary, and ensuring the right processes are in place to remain compliant with health and safety legislation. We can also offer a health surveillance service where an occupational health professional ensures employees receive the appropriate assessments while helping employers manage records, policies and follow-up actions.
Our team works closely with managers to make the process straightforward, practical and proportionate to your business. This allows you to protect your workforce while meeting your legal responsibilities.






