Do I Need A Legionella Risk Assessment?


Determining if you need to arrange a legionella risk assessment is fairly simple.  Consider these two questions:

Are you an employer (even of self-employed people) or a person/company in charge of premises of any size (landlord or facilities management company)?

Do you have premises of any size where any member of staff has any exposure to water?

The HSC Approved Code of Practice L8 deems premises to mean “any undertaking involving a work activity and to premises controlled in connection with a trade, business or other undertaking.”


If you answered yes to the above questions, by law you must arrange:

  • A detailed risk assessment to identify and assess sources of risk
  • A written scheme to prevent/control the risk of Legionella
  • To implement and manage the written scheme and appoint a person to be managerially responsible for the written scheme
  • Keeping a log book with detailed records

Many people are completely unaware of the need for a Legionella Risk Assessment, but it could just save your company’s reputation and help you to avoid prosecution, should the bacteria begin to develop in your water system.



I Own A Small Business With Two Taps. Do I Need A Legionella Risk Assessment?
According to ACoP L8, all employers, business owners and building operators have a duty under the Health and Safety at Work Act 1974 to protect their employees and the public from harm. As a consequence, most businesses and public use buildings require a Legionella Risk Assessment.

While failure to follow the ACoP L8 provisions is not actually an offence, failure to prove that you have properly worked to assess, minimise and control the risk is likely result in prosecution, should a case of Legionnaires’ disease arise from any systems within your premises.


Why Use AMES Legionella Risk Control?
The Legionella Risk Assessment will highlight risks for Legionella exposure to your staff and visitors, and will advise how these risks can be overcome. It will also give a detailed written scheme for you to monitor and control the risk of Legionella.

Our Risk Assessments cover all aspects required by the law, but have been developed to be user friendly, as we believe it is important that our customers understand the risks as much as possible.

After the risk assessment, we offer FREE TRAINING AND CONSULTATION for you or your staff, to ensure you understand the risks, your responsibilities and how you are expected to monitor and control the risk

Alternatively, we are able to provide technicians to monitor and, if necessary, treat your water systems for you, to ensure risks are minimised and controlled.


Could There Be Other Legionella Risks At My Premises?
If there are any other systems found in your premises which may cause a Legionella risk, such as air handling units or cooling towers, we are able to advise you on other assessments, surveys or treatment/maintenance necessary to control the risks.

How Much Will My Legionella Risk Assessment Cost?
Our risk assessment prices depend entirely on the type and size of water systems within your premises. We believe, however, that our prices are exceptionally competitive whilst still ensuring we provide the best quality of service.

According to ACoP L8, your risk assessment will be valid for 2 years, unless there is a reason to suspect it is no longer valid, where:

  • where there have been changes to plant, the water system or its use;
  • where there have been changes to the use of the building;
  • where new information about risk or control measures has become available;
  • where monitoring indicates that control measures are no longer effective.


How Long Will The Work Take?
We have a dedicated staff who can offer flexibility in times and dates for visits to your premises, with the intention of causing as little disruption as possible. It is, however, usually possible to conduct a risk assessment during the working day.

Where Can I Find Out More?
If you would like to find out more about your responsibilities surrounding the control and prevention of Legionella, you may find these government documents helpful:

Legionnaires’ Disease: A Guide for Employers

What is Legionnaires’ Disease?

Approved Code of Practice ACoP L8


Legionella CHASSafe Contractor Approved Construction Online

Nationwide Legionella Risk Assessments & Control

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