Services  /  Legionella Risk Assessment

Legionella Risk Assessment.
L8 compliant. Booked online.

A Legionella risk assessment is a documented survey of a building's hot and cold water systems to identify where Legionella bacteria could grow and what controls are needed to prevent it. It is a legal requirement under the Health and Safety at Work Act 1974 and the Approved Code of Practice L8 for any employer or person in control of premises with a water system — including standard offices.

Legionella risk assessment is a legal duty for any employer or person in control of premises with a water system. RiskSorted assessors are members of the Legionella Control Association and produce assessments to ACoP L8 and HSG274 standards. Results are stored in your account with review reminders.

Get an instant quote How booking works

What does a Legionella risk assessment cover?

Survey of all hot and cold water systems, calorifiers, cooling towers, showers and infrequently-used outlets. Risk score per outlet. Control measures and review date.

What do you receive after a Legionella risk assessment?

Full risk assessment report, schematic of water system, prioritised control measures, recommended monitoring schedule, review date.

Service specification

Assessor qualificationLCA member; competent to assess to ACoP L8 / HSG274
Insurance requirementMinimum £2m Professional Indemnity
Report standardACoP L8 (Approved Code of Practice) and HSG274
Average duration2 to 4 hours for typical commercial premises
Certificate formatBranded PDF assessment with water system schematic
Review reminder60 and 30 days before review date — automatic

What does the law say about Legionella risk assessments?

Regulation: Health and Safety at Work Act 1974; Control of Substances Hazardous to Health Regulations 2002; ACoP L8

Recommended frequency: Reviewed every 2 years as a minimum; re-assessed whenever the water system is modified or a case of legionellosis is suspected

Engineer qualification: Legionella Control Association (LCA) member

Ready to book?

Pricing from £250. Card at checkout. Engineer assigned by postcode.

Get an instant quote

Frequently asked questions

Is a Legionella risk assessment a legal requirement?
Yes. The Health and Safety at Work Act 1974 and ACoP L8 require any employer or person in control of premises with a water system to identify and assess sources of risk from Legionella bacteria. The assessment must be in writing and reviewed regularly.
How much does a Legionella risk assessment cost?
A Legionella risk assessment for a small commercial premises typically costs £250 to £400. Larger premises, healthcare or care environments, or sites with cooling towers are priced individually. RiskSorted's clear pricing is shown at checkout based on your premises and water system.
How often should a Legionella risk assessment be reviewed?
ACoP L8 requires the assessment to be reviewed regularly, typically every two years as a minimum. A new assessment must be carried out whenever there is a change to the water system, premises use, or following any case of legionellosis or near-miss.
Do offices need a Legionella risk assessment?
Yes. Any premises with a water system — including standard offices with hot water, kitchen taps, water coolers, or showers — falls within scope. Even low-risk premises require a written assessment, although the recommended monitoring schedule will be lighter than for higher-risk sites.
What's the difference between a risk assessment and Legionella testing?
A risk assessment is the documented identification of where Legionella could grow and what controls are in place. Legionella testing (water sampling) is one possible control measure that may be recommended by the assessment. Most low-risk premises do not require routine sampling, only assessment and basic temperature monitoring.
Who is the 'responsible person' for Legionella?
The duty falls on the employer or person in control of the premises — typically a director, building manager, landlord, or designated facilities manager. They are responsible for ensuring the assessment is carried out and the recommended controls are implemented.

Reviewed by RiskSorted's compliance team. RiskSorted's in-house team holds collective qualifications across NEBOSH General Certificate, IOSH Managing Safely, Fire Risk Assessment (PAS 79-1), and electrical compliance. All service guides are reviewed against current UK regulations and the latest editions of the relevant British and ACoP standards.

This page provides general guidance on UK compliance services and is not a substitute for professional advice. Specific compliance requirements should be confirmed with a qualified professional based on the particulars of your premises, business activities and applicable regulations.

One supplier. Every certificate.
Every renewal date.

Bundle Legionella Risk Assessment with your other compliance services and save on a single-visit booking.

See all services