Comprehensive Legionella Testing in the UK

AMES Group provides fully comprehensive and certified Legionella risk assessments for businesses across the UK. Our risk assessment service not only offers peace of mind to your business but alleviates all health and safety concerns relating to Legionnaires’ disease for two years. 

Our risk assessments are designed to be fast, safe and minimally invasive. We recommend that businesses arrange at least one Legionella risk assessment every two years, or if the water systems have been changed.

For more information on Legionella testing, your responsibilities as a landlord and what’s involved in the process, please continue reading.

Do I need a Legionella risk assessment?

To discover whether or not Legionella bacteria is present in your water, a risk assessment will be required. Any building that uses any of the following:

  • A cooling tower
  • incorporating an evaporative condenser
  • Hot and cold water systems

If you’re not sure whether your building fits into any of these, simply contact our staff and we’ll be able to advise further. 

Alternatively, you should have your water systems reviewed regularly to ensure your water systems adhere to the guidelines put in place by HSE, specifically their ACOP L8 document.

This includes:

  • Recent changes to the water system in your building (this includes replacing old systems)
  • If the building is being repurposed for new use (for example, a dentist clinic turned into a hairdressers)
  • Information alluding to the water supply systems being associated with Legionella or Legionnaires’ disease
  • Checks on the water systems or other areas of the building that suggest control measures are inadequate 

We strongly suggest that businesses invest in Legionella testing at least once every two years. Not only is this important for peace of mind, but to ensure that your systems adhere to safety guidelines implemented by HSE.

What’s involved in a Legionnaires test and risk assessment?


Legionella testing and risk assessing involves searching for, and identifying the part of a site that includes water and then testing that water for Legionella bacteria. 

The assessments also involve:

  • Identifying whether the water provides a habitable platform for Legionella bacteria to grow (Legionella bacteria thrive between 20 – 45c).
  • Habitats and/or area that create a respirable aerosol (showers, hot tubs etc)
  • People at risk of contracting and suffering from Legionella bacteria

Booking your Legionnaires test

Booking a Legionnaires test and risk assessment is simply the AMES Group. All you need to do is complete the contact form below (entering some basic information about yourself so we can contact you), and our team will be in touch with a quote and assessment date. 

Water treatment testing


Legionella bacteria is predominantly found in domestic hot and cold water systems, which are used in almost every commercial workplace. This includes commercial office buildings, hairdressers, care homes, dentists and medical centres. Almost every commercial property’s water flow is controlled by some sort of water system. 

To test your water, there are a few simple steps you can take before contacting us, these include:

  • Locating your hot water sentinel – a tap that’s typically located the furthest away from the water heater/boiler. 
  • Placing a Legionella thermometer tip facing down under the running water for approximately one minute
  • Monitor the temperature for this minute and make sure the thermometer records 50c within that minute.

You can learn more about our process on our water sampling and quality testing page.

Landlords and their responsibilities

Some landlords are left confused regarding their legal requirements and responsibilities regarding the safety of their tenants. 

However, Gov states that:

“The practical and proportionate application of health and safety law to landlords of domestic rental properties is that whilst there is a duty to assess the risk from exposure to Legionella to ensure the safety of their tenants, this does not require an in-depth, detailed assessment”. – HSE

It goes onto state that although it is a legal duty for landlords to assess and control the risk of exposure to Legionella, the Health and Safety law “does not require landlords to produce or obtain, nor does HSE recognise, a ‘Legionnaires testing certificate”.

Book your Legionella test & risk assessment today

AMES Group is the UK’s leading Legionella testing companies, our team can carry out comprehensive risk assessments and train you and your staff to monitor your water systems to alleviate the risk of Legionnaires’ disease. Your risk assessment is valid for two years, guaranteeing peace of mind and the assured health and safety of you and your staff.

Book your risk assessment today

FAQS:

How much does a Legionella risk assessment cost?

All risk assessment costs vary depending on a few factors, including the size of your commercial property and the type and size of your water system.

Contact our team for an immediate quote on your risk assessment.

Who can assess the risk?

For a fully comprehensive Legionella test and risk assessment, it’s advised, you AMES Group. 

However, landlords can also take simple measures to ensure their compliance with HSE’s guidelines. Landlords are able to complete the risk assessment themselves, but if they do not feel competent or would rather have peace of mind and a certificate proving their ACOP L8 compliance, this is something AMES Group can help with. 

What are the right temperatures for hot and cold water systems?

Legionella requires a water temperature between 20 and 45c to survive and multiply. Essentially, you should ensure that your cold water is below 20c and your hot water is above 50c to alleviate the risk of Legionella bacteria forming. 

Can I be trained to carry out the legionella water temperature checks effectively?

Yes, AMES Group provides training to ensure landlords are compliant with HSE and ACOP L8 regulations concerning Legionella risk assessment. Get in touch with our team today to learn more about our Legionella training course.

Why is water temperature so important?

Your water hygiene and temperature is essential regarding Legionella. To avoid the risk of anyone contracting Legionnaires’ disease, professional and efficient monitoring of hot and cold water systems is the most important factor or risk assessment. Ensuring that your water systems avoid the 20c and 45c range is essential to ensure Legionella bacteria does not start to form. Failure to adhere to these guidelines may put the health and safety of both you and your staff at risk.

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