When it comes to workplace safety, legionella risk assessments play a crucial role in protecting your health and meeting your legal duties.
Legionella is a bacteria that can cause Legionnaires’ disease – a serious lung infection. It thrives in water systems if not properly managed. This is where employer duties become critical.
What is a Legionella Risk Assessment?
A legionella risk assessment is a detailed review of your water systems. Its purpose is to identify and manage any legionella safety risks.
It’s not just for large companies. If you’re an employer, landlord or duty holder, you are legally responsible for controlling legionella.
You must understand where water is stored, how it flows, and whether conditions allow bacteria to grow. That’s your starting point for effective workplace safety.
Do Employers Need a Legionella Risk Assessment?
Yes, absolutely. Every employer has a duty under the Health and Safety at Work Act and COSHH regulations.
This duty includes assessing and controlling the risks from legionella in any workplace setting that uses water systems.
Whether it’s an office, warehouse, hair salon or dental practice – if there’s a water supply, there’s a potential risk.

What Should a Legionella Risk Assessment Include?
A good legionella risk assessment should be thorough but easy to understand. It usually includes:
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A description of your water systems
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Identification of potential risk areas
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Details of who may be at risk
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An evaluation of control measures
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Clear recommendations and actions
This ensures all employers can take informed steps to maintain legionella safety across their premises.
Who Can Carry Out a Legionella Risk Assessment?
Although you can carry out the assessment yourself, it’s usually best to bring in a competent assessor.
They’ll understand the latest guidance and best practices, helping you meet your legal duties.
Our trained assessors are always happy to help, offering clear advice with no jargon.
Tips for Managing Legionella Risks Ongoing
Once your risk assessment is done, it doesn’t stop there. Regular monitoring and reviews are key.
Here are five quick tips to stay on top of legionella safety:
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Keep records of your assessments and actions
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Flush little-used outlets weekly
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Monitor water temperatures regularly
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Clean and disinfect systems as needed
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Review your risk assessment annually or after system changes
These simple steps help meet your employer duties and promote safer, healthier workplaces.
Why It Matters
Legionnaires’ disease is preventable – and so are the legal and reputational consequences of failing your duty.
By carrying out regular legionella risk assessments, you’re protecting your team, your business, and your peace of mind.
Need a Hand?
We know this can feel overwhelming at first. But you don’t have to tackle it alone.
Our friendly team is here to support you with every step – from your first legionella risk assessment to ongoing workplace safety checks.
Ready to get started or just have a question? Get in touch today – we’re always happy to help.