Legionella Risk Assessments

Our service identifies, assesses, and mitigates risks across all property types, ensuring compliance and safeguarding occupants in residential, commercial, and various other sectors

Why do I need Legionella Risk Assessments?

Legionella bacteria can develop in water systems and pose serious health risks if not properly controlled. As a duty holder, you are responsible for ensuring systems are assessed, monitored, and maintained to reduce risk.

When is Legionella Risk Management suitable?

✓ You manage residential blocks, HMOs, or commercial properties
✓ Your property has water systems such as tanks, pipework, or cooling systems
✓ You have not reviewed your Legionella risk assessment recently
✓ There have been changes to your water system or occupancy
✓ You need ongoing monitoring and control measures in place

How it works

Building Process Timeline

1. Get in touch

Share details about your property or portfolio with our team.

2. Initial Review

We assess your requirements and recommend the appropriate level of service.

3. Risk Assessment

A qualified assessor inspects your water systems and identifies any risks.

4. Report & recommendations

You receive a clear report outlining risks and practical actions.

5. Ongoing Support

We help you implement control measures, monitoring, and regular reviews.

Key Considerations Before Proceeding

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  • Understanding your system (e.g. tanks, outlets, pipework) helps determine the level of risk and required control measures.

  • Assessments should be reviewed regularly, especially if there have been changes to the system or usage.

  • Duty holders must ensure risks are managed—this may be the landlord, managing agent, or employer.

  • Ongoing checks such as temperature monitoring and flushing regimes are key to maintaining control.

How Legionella Risk Management Supports Compliance

Legionella risk management helps duty holders meet their responsibilities under the Health and Safety at Work etc. Act 1974 and the Control of Substances Hazardous to Health Regulations 2002. A clear risk assessment and documented control measures demonstrate that you are taking reasonable steps to protect occupants.

What you should do next

  • Review when your last Legionella risk assessment was completed

  • Identify the types of water systems across your properties

  • Check whether monitoring and control measures are in place

  • Gather any existing documentation or reports

4site Proudly Hold BSI ISO9001, ISO14001 & ISO45001

All clients receive FREE access to our secure online portal with every service. From reviewing live assessments and downloading reports to tracking actions and timelines, our web tools make managing compliance effortless.

Access Your Safety Reports and Tools Anytime, Anywhere!