Legionella Risk Assessments

Man-made hot and cold water installations can provide ideal conditions for Legionella bacteria, which causes Legionnaires’ disease if inhaled through fine spray or mist.

• The Risk: Stagnant water, sediment, and temperatures between 20°C and 45°C encourage bacterial growth.

• Landlord Responsibilities: Under UK health and safety regulations (HSE ACoP L8), residential landlords must evaluate and manage legionella risks.

• Simple Prevention: Regular water turnover, descaling taps and showers, and maintaining safe cylinder temperatures generally keep domestic systems compliant without expensive measures.