Stay compliant with our Legionella risk assessments, and testing services

Legionella Risk Assessments in Surrey & London

Did you know that it is a legal duty to identify and assess whether there is a risk posed by exposure to legionella in hot and cold water systems?

UK PAT can ensure that you comply with current legislation by completing a Legionella risk assessment on your property to ensure your water systems are safe. These are essential for employers, landlords, and anyone who controls the water system in commercial premises.

There are at least 34 species of legionella – a type of waterborne bacteria – which can cause diseases known as Legionellosis, which includes Legionnaire’s Disease. Legionella is found throughout natural water sources and man-made systems. We can inspect your systems to ensure that you, your employees, tenants, or visitors are protected from these illnesses.

Our fully independent company can carry out risk assessments for a range of businesses, domestic properties, and commercial properties and understand the legislative requirements. All assessments are completed safely and professionally. Upon the completion of our assessment, we can advise you on the best course of action to minimise the risk of legionella.

Risk assessments are valid for two years, though another assessment may be needed sooner if:

  • There are changes to the building’s use
  • There are changes in the water system
  • There are cases associated with the system
  • There is an update in the relevant legislation
  • There has been a change of personnel in the company or before a new tenancy begins

Speak to our team now on 020 8798 2650 or 07944 753 628.

Do you need a Legionella Risk Assessment?

If you are an employer or someone in charge of premises of any size (including a rental property) where people are exposed to water, you must arrange:

  • A detailed risk assessment to identify and assess the source of risk
  • A written scheme to prevent and control the risk of legionella
  • Implement and manage the written scheme and nominate someone to be responsible for it
  • To keep a log book with detailed records

This is an area that can be overlooked but it is important to comply with regulations to avoid prosecution. Our Legionella Risk Assessment will assess the risks of legionella exposure to staff, tenants, or visitors and will advise about ways you can overcome this.

What to expect from a Legionella Risk Assessment?

A Legionella Risk Assessment will include an analysis of your current assessments and records, including all remedial maintenance or work which has been completed. It will involve:

  • Assessing potential hazards and the level of risk

  • Looking at who is at risk

  • Recording the results of the assessment

  • Putting in control measures to reduce and minimise the risk

  • Evaluating the assessment when needed

Frequently Asked Questions about Legionella

The price is based on the location, the number of rooms in your property and other factors. Contact us, and we will provide a free and no-obligation quote.

Our team is always on hand to provide detailed guidance and advice regarding all aspects of Legionella risk assessments.

Call our team now, and we will book an appointment for you.

Consequences of non-compliance may include legal penalties, fines, reputational damage, and risks to public health

We can provide clients with a detailed report outlining assessment findings, recommendations, and a management plan.

Yes, high-risk properties like healthcare facilities often have specific guidelines for Legionella control due to the vulnerability of the people in the property.

Legionella risks can be managed through regular monitoring, temperature control, water system cleaning, and staff training. We can advise you when we complete an assessment.

Legionella bacteria are found during an assessment, so immediate action should be taken to remediate the issue, including disinfection of affected water systems and implementation of control measures.

Risk assessments can sometimes be conducted remotely using detailed information about the property and its water systems, although on-site inspections are frequently necessary.

The duration of a Legionella risk assessment varies based on the size and complexity of the property but typically takes a few hours to complete

Factors that increase Legionella risk include stagnant water, water temperatures between 20-45°C, the presence of biofilm, and aerosol generation from showers or cooling towers, for example.

Parts of a property to assess for Legionella risk include water tanks, pipework, showers, hot tubs, cooling towers, and other water systems that may create aerosols.

Legionella risk assessments should be conducted regularly, with intervals typically ranging from every year to every two years, depending on factors such as property type and complexity of the water system.

Legionella Bacteria in Water Systems (L8) control is mandated under the Health & Safety at Work etc. Act 1974 typically excludes most domestic properties from regulation. However, if you are a landlord renting out a property, you are accountable and should refer to HSG 274 Part 2 for guidance. Additionally, explore your duties as a landlord and visit RLCS for further information.

No, it is acquired through inhaling contaminated microscopic water vapour or aerosol particles.

Property owners or managers are responsible for Legionella risk assessments to ensure the safety of occupants within their property at all times.

A Legionella risk assessment involves a thorough inspection of water systems, identification of potential hazards, evaluation of control measures, and recommendations for managing risks.

Our team holds relevant qualifications in water hygiene, risk assessment, and health and safety.

Legionella is a type of bacteria found in water sources capable of causing Legionnaires’ disease, a severe form of pneumonia. It is a concern because it can thrive in water systems and pose health risks if not properly managed. All individuals have the potential to contract Legionnaires’ Disease, but certain groups are at increased risk, including individuals aged 45, smokers, and those with compromised immune systems.

Call now for a Legionella Risk Test quote

If you are interested in the services that we offer and would like to find out more about our Legionella Risk Assessments, please call 020 8798 2650 or 07944 753 628 or email

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