Legionella bacteria can develop where water systems create suitable conditions for growth. A suitable assessment helps duty holders identify the risks, put proportionate controls in place and protect residents, employees and visitors.
Legionella Risk Assessment
Protecting Occupants from Waterborne Health Risks.
Professional Legionella Risk Assessments for residential, commercial and healthcare premises, helping landlords, managing agents and duty holders comply with the Health and Safety at Work etc. Act 1974, COSHH, and the HSE Approved Code of Practice L8 and HSG274 guidance.
Why You Need a Legionella Risk Assessment
Stay Compliant & Protect
Health
What We Check
Detailed, On-Site Inspections
by Competent Assessors


Legionella Risk Assessment
What Is a Legionella Risk Assessment?
A Legionella risk assessment is a systematic review of a building’s water system to identify conditions that may allow Legionella bacteria to grow or spread. It considers the system design, water temperatures, usage patterns, vulnerable occupants and existing control measures.
Following the inspection, we provide a clear digital report setting out the findings, risk level and practical actions required to manage the system safely.
Legionella Risk Assessments for Landlords & Businesses
We assess hot and cold water systems in rental properties, HMOs, care settings, offices and other commercial premises. Where a property contains cooling towers, evaporative condensers or other complex systems, the scope and competence requirements should be confirmed before booking.
Who Needs This Survey?
Designed for Landlords, Builders & Businesses

Landlords
(Private & HMO)



& surveyors

schools, hospitals,
housing associations

Why Choose Property Checks?
Trusted, Fast & Compliant
Trust & Benefits
Keep Your Water System Safe & Compliant
Do not leave water-hygiene risks unmanaged. Arrange a professional Legionella risk assessment and receive a clear report with practical next steps.
FAQ
Frequently Asked Questions
Is a Legionella risk assessment a legal requirement in the UK?
Duty holders must assess and control reasonably foreseeable exposure to Legionella under health and safety law. HSE’s ACOP L8 explains how these duties should be managed for relevant water systems.
What type of Legionella risk assessment do I need?
Most residential and commercial properties require an assessment of their hot and cold water systems. Cooling towers, evaporative condensers and other complex systems may require a more specialist assessment and control programme.
What happens during a Legionella risk assessment?
A competent assessor inspects the water system, checks representative temperatures, identifies stagnation risks and reviews existing controls. The findings are recorded in a written report with prioritised recommendations.
What should I do if a risk is identified on my property?
Follow the prioritised recommendations in the report. Actions may include flushing, temperature adjustments, cleaning, monitoring or remedial changes to the water system, depending on the risk identified.
How long is a Legionella risk assessment valid for?
There is no universal fixed expiry period. The assessment should be reviewed whenever there is reason to believe it is no longer valid, including after changes to the water system, building use, occupancy or control measures.
