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  • Lisamarie Lamb

The Importance of Legionella Control in Commercial Buildings

Legionella control is a crucial aspect of managing the safety and wellbeing of individuals in commercial buildings in the UK. Legionella is a type of bacteria that can cause a severe form of pneumonia known as legionnaires' disease, which can be life-threatening. This disease is particularly dangerous for individuals with weakened immune systems, such as the elderly and those with underlying health conditions.

Commercial buildings, such as hospitals, hotels, office buildings, and leisure centres, are particularly susceptible to legionella growth due to their complex water systems. These systems provide ideal breeding grounds for the bacteria to thrive, particularly when the water is stagnant, warm, and poorly maintained.

Governmental Regulations

The UK government has put in place regulations to ensure that commercial buildings are safe from the risks associated with legionella growth. The Health and Safety at Work Act 1974 and the Control of Substances Hazardous to Health Regulations 2002 (COSHH) require employers to carry out a risk assessment to identify and evaluate any potential risks from legionella in their buildings.

These regulations require employers to implement effective legionella control measures, such as monitoring and testing water systems, ensuring the proper treatment of water, and carrying out regular cleaning and maintenance. Failure to comply with these regulations can result in severe legal and financial consequences, including fines, imprisonment, and damage to reputation.


Furthermore, the COVID-19 pandemic has highlighted the importance of maintaining healthy indoor environments to prevent the spread of respiratory diseases. Poorly maintained water systems can harbor and spread not only legionella but also other harmful bacteria, viruses, and fungi.

In conclusion, legionella control in commercial buildings is vital for ensuring the safety and wellbeing of individuals who use these facilities. Employers have a legal and moral obligation to comply with regulations and implement effective control measures to prevent the growth and spread of legionella. By doing so, they can ensure the health and safety of employees, customers, and visitors to their buildings, as well as protect their businesses from legal and financial consequences.

To book your risk assessment or to talk through your responsibilities, please contact Assured Water Hygiene for more information.

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