Radon in the Workplace

Radon is a naturally occurring radioactive gas, and in certain areas of the UK it can accumulate inside buildings to levels that may pose a health risk. Employers have a legal duty to consider radon as part of their wider health and safety responsibilities.

Under the Management of Health and Safety at Work Regulations 1999, employers must assess any potential risks within their premises - including risks from radon where relevant.
If a workplace is located in a radon-affected area, or includes a basement or other below-ground workrooms, a radon measurement is usually required to complete this assessment.

The Ionising Radiations Regulations 2017 (IRR17) require employers to take action if long-term radon results exceed 300 Bq/m³. This may include further investigation or mitigation work to reduce radon levels and protect employees.

Although radon is the second leading cause of lung cancer in the UK, measuring it is straightforward and cost-effective, and raised levels can be reduced with practical mitigation measures when required.

For further guidance, visit the Health and Safety Executive: www.hse.gov.uk

Our Workplace Radon Monitoring Service

Radon Safe UK provides a reliable radon monitoring service specifically designed for commercial and public-sector buildings. Our service includes:

Supply of professional radon detectors
Clear instructions for placement
Accredited laboratory processing
A written report explaining your results
Brief guidance on any next steps if levels are elevated

For most workplaces, two to ten detectors are sufficient, depending on the size and layout of the building. Measurements are normally carried out over a three-month period, in line with UK guidance for accurate long-term assessment.

Support for Larger Organisations

For organisations managing multiple sites or large property portfolios, we offer flexible testing solutions:

Postal supply of detectors with placement instructions
Bulk testing programmes for housing stock and estates
Full on-site installation by our trained team
Consolidated reporting across all properties tested

We can help you choose the most appropriate approach based on your building types, locations and regulatory requirements.

Who Needs to Test for Radon?

All employers must consider radon as part of their health and safety risk assessment. Testing is strongly advised if:

The workplace is in a radon-affected area
The building has a basement or below-ground rooms used by staff
You are unsure of the current radon level and need reassurance
You are responsible for multiple buildings or varied property types

No indoor ground-floor workplace can be assumed to have low radon simply because of ventilation or the nature of the work carried out. The number of detectors needed depends on building size, layout and occupancy.

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