Legionella Risk Assessment

When do you need a Legionella risk assessment?

If you are responsible for a building with hot and cold water systems, you may need a Legionella risk assessment to help identify potential risks and understand what control measures are required.

A risk assessment is particularly important if:

you are a duty holder, responsible person, landlord, property owner or facilities manager
your premises include stored water, showers, outlets, tanks, calorifiers or other water system assets
you are taking over responsibility for a new site or property portfolio
your existing risk assessment is out of date or no longer reflects how the building is used
there have been changes to the water system, building layout, occupancy or use of the premises
your site includes higher-risk occupants, such as residents, patients, pupils or vulnerable people
monitoring results, previous reports or site conditions suggest that current control measures may not be sufficient

A clear Legionella risk assessment helps you understand the level of risk, prioritise remedial actions and put suitable control measures in place to support ongoing compliance. Where sampling is recommended, BrodexTrident can also support with professional water sampling services, including Legionella testing.

Why choose BrodexTrident for your risk assessments?

Legionella Control Association Member

As a Legionella Control Association Member, BrodexTrident is committed to working in line with recognised standards for Legionella control and water hygiene services.

Assessments carried out to BS 8580-1:2019

Our Legionella risk assessments are carried out in accordance with BS 8580-1:2019, the British Standard for water quality risk assessments for Legionella control.

Experienced water hygiene specialists

Our assessors understand the practical risks associated with hot and cold water systems, helping duty holders identify risks, control measures and required actions.

Clear, prioritised reporting

We provide clear reports with identified risks, recommended actions and prioritised findings, helping you understand what needs attention and what should be addressed first.

UK-wide service coverage

We support clients across the UK, delivering Legionella risk assessments for individual sites, regional contracts and national property portfolios.

What's included in a Legionella risk assessment?

Site and system review

We review the site, water system layout, use of the building and relevant available records to understand how the system is managed and where risks may exist.

Inspection of water system assets

The assessment includes inspection of relevant hot and cold water system assets, such as tanks, calorifiers, outlets, TMVs, pipework arrangements and other risk areas.

Identification of risk factors

We identify conditions that may increase the risk of Legionella growth or exposure, including temperature issues, stagnation, dead legs, poor turnover and vulnerable users.

Review of control measures

Existing control measures, monitoring arrangements, maintenance records and management responsibilities are reviewed to assess whether the system is being effectively controlled.

Prioritised action plan

Findings are presented with recommended actions and priorities, helping you understand what needs to be addressed and how risk can be reduced.

Support with next steps

Where further action is needed, BrodexTrident can support with monitoring, sampling, remedial works, schematic drawings and ongoing water hygiene compliance.

Who is responsible for arranging a Legionella risk assessment?

Who can carry out a Legionella risk assessment?

How often should a Legionella risk assessment be reviewed?

Is Legionella testing the same as a Legionella risk assessment?

What happens after a Legionella risk assessment?

Do I need a written scheme after a Legionella risk assessment?

Do landlords need a Legionella risk assessment?

Legionella Risk Assessment

When do you need a Legionella risk assessment?