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Legionella Risk Assessment UK

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Legionella Risk Assessment UK

Get a Free Compliance Checklist

By submitting this form, you confirm you have read our Privacy Policy.

ACOP L8 & HSG274 Compliant Assessments by Managed Water Services

A Legionella risk assessment is a legal requirement for organisations responsible for water systems in the UK. Managed Water Services provides professional Legionella risk assessment services to help Duty Holders, Responsible Persons, and facilities teams meet their legal obligations under ACOP L8 and HSG274.

Managed Water Services is a specialist UK water safety consultancy providing complete legionella control, water hygiene, and water management services nationwide. We support organisations, duty holders, and facilities teams in meeting their legal responsibilities under ACOP L8, HSG274, and UK health and safety legislation, ensuring water systems remain safe, compliant, and efficient.

We deliver clear, practical, and fully compliant Legionella assessments across commercial, industrial, healthcare, education, and residential environments — helping you reduce risk, remain compliant, and protect building users.

What Is a Legionella Risk Assessment?

A Legionella risk assessment is a systematic inspection and evaluation of water systems to identify the risk of exposure to Legionella bacteria, which can cause Legionnaires’ disease.

Identifies potential Legionella risk sources

Identifies potential Legionella risk sources

Reviews how water systems are designed, operated, and maintained

Reviews how water systems are designed, operated, and maintained

Evaluates control measures already in place

Evaluates control measures already in place

Recommends corrective actions to ensure compliance

Recommends corrective actions to ensure compliance

Under UK law, every Duty Holder must ensure a Legionella risk assessment is carried out and kept up to date.

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hands in lab

Is a Legionella Risk Assessment a Legal Requirement in the UK?

Yes. Legionella risk assessments are a legal requirement under:

Health and Safety at Work etc. Act 1974

Health and Safety at Work etc. Act 1974

Control of Substances Hazardous to Health (COSHH) Regulations

Control of Substances Hazardous to Health (COSHH) Regulations

ACOP L8 – Legionella: The Control of Legionella Bacteria in Water Systems

ACOP L8 – Legionella: The Control of Legionella Bacteria in Water Systems

HSG274 Guidance

HSG274 Guidance

Failure to comply can result in enforcement action, fines, prosecution, and reputational damage.

Duty Holder & Responsible Person Responsibilities

If you are a Duty Holder or Responsible Person, you are legally responsible for:

Ensuring a Legionella risk assessment is completed

Ensuring a Legionella risk assessment is completed

Implementing and maintaining control measures

Implementing and maintaining control measures

Keeping records of monitoring and testing

Keeping records of monitoring and testing

Reviewing the assessment regularly

Reviewing the assessment regularly

Managed Water Services supports Responsible Persons with Legionella compliance services, including risk assessments, monitoring programmes, and ongoing advisory support.

two men in risk assessment
men checking water systems

Our Legionella Risk Assessment Services

We provide independent Legionella assessment services tailored to your premises and risk profile.

Our service includes:

Our service includes:

We provide independent Legionella assessment services tailored to your premises and risk profile.

Full inspection of hot and cold water systems

Full inspection of hot and cold water systems

Identification of Legionella risk factors

Identification of Legionella risk factors

Review of temperature control, usage, and system design

Review of temperature control, usage, and system design

Assessment of existing control measures

Assessment of existing control measures

Clear risk ratings and prioritised actions

Clear risk ratings and prioritised actions

A detailed, easy-to-follow compliance report

A detailed, easy-to-follow compliance report

All assessments are carried out by competent, trained Legionella risk assessors in line with ACOP L8 and HSG274 guidance.

Legionella Testing & Water Sampling

Where required, we also offer Legionella water testing and microbiological sampling as part of your overall Legionella control programme.

Our Legionella testing UK services include:

Routine and reactive water sampling

Routine and reactive water sampling

UKAS-accredited laboratory analysis

UKAS-accredited laboratory analysis

Clear interpretation of results

Clear interpretation of results

Advice on remedial actions if bacteria are detected

Advice on remedial actions if bacteria are detected

Testing supports , but does not replace a Legionella risk assessment.

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man and woman sat at desk

Legionella Risk Assessment Cost & Pricing

The cost of a Legionella risk assessment depends on several factors, including:

Size and complexity of the water system

Size and complexity of the water system

Type of building (commercial, residential, healthcare, etc.)

Type of building (commercial, residential, healthcare, etc.)

Number of outlets and assets

Number of outlets and assets

Location

Location

We offer competitive, transparent pricing with no hidden costs. Contact us for an accurate Legionella risk assessment quote.

How Often Is a Legionella Risk Assessment Required?

A Legionella risk assessment should be:

Reviewed at least every 2 years, or

When there are changes to the water system

After periods of low usage

If control measures are no longer effective

Our team can help you manage review dates and ongoing compliance.

Who Can Carry Out a Legionella Risk Assessment?

A Legionella risk assessment must be carried out by a competent person with:

Suitable training

Relevant experience

Knowledge of water systems and Legionella control

Managed Water Services uses qualified Legionella professionals who understand both the technical and legal requirements.

What Happens If You Don’t Comply?

Non-compliance with Legionella regulations can lead to:

HSE enforcement notices

Significant fines

Criminal prosecution

Increased risk of illness or fatality

Proactive Legionella compliance protects people, property, and your organisation.

Legionella Risk Assessment Near You

We provide Legionella risk assessments across the UK, supporting:

Facilities Managers

Commercial landlords

Managing agents

Healthcare and education providers

Industrial and manufacturing sites

If you’re searching for “Legionella risk assessment near me”, our team can help.

Why Choose Managed Water Services?

ACOP L8 & HSG274 compliant

ACOP L8 & HSG274 compliant

Experienced Legionella assessors

Clear, actionable reports

UK-wide coverage

Trusted Legionella compliance specialists

We don’t just assess risk , we help you control it.

Legionella Risk Assessment Video

Watch our legionella risk assessment video

Book Your Legionella Risk Assessment

Ensure your premises remain safe, compliant, and protected.

Contact Managed Water Services for:

Legionella risk assessments

Legionella risk assessments

Legionella testing

Legionella testing

Ongoing Legionella compliance support

Ongoing Legionella compliance support

By submitting this form, you confirm you have read our Privacy Policy.

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© 2026 Managed Water Services Ltd. All rights reserved.
© 2026 Managed Water Services Ltd. All rights reserved.