Legionella Risk Assessments
A Legionella risk assessment is the foundation of every water safety programme. Our engineers carry out site-attended assessments of hot and cold water systems, identify risk factors, and produce a clear, prioritised written report you can act on.
Frequency
Reviewed every 2 years (or on change)
Site time
Typically half to full day
Deliverable
Written report + asset register
Why it matters
Anyone responsible for a building with a water system needs to understand and control the risk of Legionella. A suitable risk assessment is the starting point — without it, there's no defensible basis for any of the controls that follow.
A well-written risk assessment does more than tick a box. It tells facilities teams exactly which assets matter, where the real risks sit, and what to spend money on first. That clarity is what separates a binder on a shelf from a working water safety programme.
Who it's for
- Commercial offices and multi-tenant buildings
- Care homes and healthcare settings
- Schools, colleges and universities
- Hotels, serviced apartments and hospitality venues
- Residential blocks and managed properties
What's included
- Site-attended inspection of hot and cold water systems
- Asset survey: tanks, calorifiers, outlets, plant and pipework
- Schematic review or production of system schematics
- Identification of risk factors (dead legs, low use, temperature)
- Review of existing written scheme of control and records
What you receive
- Detailed written risk assessment report
- Prioritised, costed remedial recommendations
- Asset register and outlet schedule
- Schematic drawings of the system
- Plain-English summary of findings and next steps
Our process
A repeatable, engineer-led delivery sequence.
- 1
Pre-visit scoping
We confirm building details, occupancy and any known issues so the site visit is focused and efficient.
- 2
Site-attended survey
An engineer walks the system end-to-end: incoming main, tanks, calorifiers, plant and a representative outlet sample.
- 3
Asset register & schematics
We document every relevant asset and produce or update system schematics where missing.
- 4
Risk analysis
Each risk is graded by likelihood and severity, with clear reasoning recorded against every finding.
- 5
Written report
You receive a prioritised, plain-English report with costed remedial recommendations.
- 6
Sign-off & next steps
We walk you through the findings and agree a remedial plan and monitoring regime.
Frequently asked questions
Related services
Water Sampling & Laboratory Testing
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Temperature Monitoring & Water Safety Programmes
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Mechanical & Plumbing Remedial Works
Learn moreSee which sectors we serve for guidance specific to your building type.
Want background reading? Browse our compliance guides or talk to an engineer.
Need a Legionella risk assessment or remedial works?
Speak to our engineers about a compliance plan tailored to your portfolio.