Landlords across the UK are being urged to take action to manage the risk of Legionnaires’ disease in rental properties, or risk serious consequences for failing to comply.
Following the introduction of the Renters’ Rights Act, the new legislation came into force on 1st May 2026. While the Act itself does not introduce specific new legal requirements relating to Legionella, these changes will help strengthen expectations around property standards.
While Legionnaires’ disease does not spread from person to person, Legionella is a bacterium that develops in water systems, particularly where water is left stagnant. The bacteria can cause a serious form of pneumonia when small droplets of contaminated water are inhaled. The illness is known to pose a higher risk to older people, smokers, and those with weakened immune systems or underlying health conditions.
Landlords already have a legal duty of care under existing health and safety legislation to assess and control the risk of Legionella in their properties. However, the introduction of the Renters’ Rights Act warns that failure to manage such risks could now result in more serious consequences, such as fines of up to £20,000 or even imprisonment if a tenant dies as a result of exposure.
Although the risk in most domestic properties is considered low, it should not be overlooked. Legionella bacteria are most likely to grow in water temperatures between 20°C and 45°C, particularly in systems where water is not used regularly or where outlets remain unused for long periods.
Properties that have been vacant or have low occupancy may therefore present a greater risk if water systems are not properly maintained.
Landlords are being encouraged to carry out risk assessments to identify any potential issues within their properties, including checking water temperatures, ensuring the regular use of outlets such as taps and showers, and flushing systems after periods of inactivity. Preventative measures, such as maintaining hot water at a sufficiently high temperature and ensuring cold water remains cold, are effective in reducing the risk.
The Renters’ Rights Act has introduced stronger protections for tenants.
How Bradley Environmental Can Help
At Bradley Environmental, we specialise in Legionella and Water Hygiene Risk Management for commercial, retail, and industrial buildings. With years of experience, we provide practical, cost-effective solutions to keep your business compliant and protect your staff and customers.
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