The legal test: competence
ACoP L8 requires the risk assessment to be carried out by a competent person, meaning someone with the right skills, knowledge and experience for the system being assessed. A simple flat needs far less than a hospital.
Can landlords do their own?
Yes. HSE says landlords can assess their own properties if they understand the risks and how to control them. Many choose a professional for complex properties, HMOs and portfolios, or simply for an independent record.
Useful signs of competence
- Recognised legionella risk assessment training
- Experience with similar buildings and systems
- Work that follows ACoP L8, HSG274 and BS 8580-1
- Membership of a recognised industry scheme
- Professional indemnity and public liability insurance
- Sample reports you can review before booking
Questions to ask a provider
- Will the assessor visit and survey the whole system, including tanks and plant?
- Will I get a schematic, photographs and a prioritised action plan?
- How are out-of-range temperatures dealt with?
- Can you carry out the remedial work and monitoring as well?
Frequently asked questions
Do you need a qualification to do a legionella risk assessment?
There is no single mandatory qualification. The assessor must be competent for the system, which usually means relevant training and experience.
Can a plumber do a legionella risk assessment?
A plumber can if they are competent in legionella risk assessment. Plumbing skills alone are not the same as risk assessment competence.
Disclaimer: This guide is general information about UK requirements and is not legal advice. Always check the current legislation and guidance for your premises.