The elderly are vulnerable, and those living in care homes need impeccable hygiene. Risking exposure to diseases that may spread to the residents means endangering the lives of these people. At their age, a bacterium like Legionella may cause multiple fatalities in a matter of days.
Protecting them must be the ultimate goal of the people working in the care home. Conducting regular checks and using various safety systems is essential in places like these. Luckily, protection against Legionella risk in care homes is simple if regular checks and water supply maintenance is up to standards.
Legionella and Scalding Risk with Vulnerable Residents
When Legionella erupts, it’s really hard to put it under control. The most common method used thermal disinfection whilst letting the hotter water destroy the bacteria biofilms. However, the risk here is burning and limited reach due to safety regulating devices where are there to protect the occupants from scolds and burns.
Based on this it is much better to do regular checks and prevent the formation of Legionella inside your water systems in the first place.
Why are Legionella Checks in Care Homes Important?
Legionnaires’ disease is a potentially fatal form of pneumonia caused by inhaling airborne water droplets that contain viable Legionella bacteria. Every care provider has a duty of care to reduce the risk of exposure to Legionella in water systems. Regular checks are not only a requirement from the Health and Safety Executive but also part of protecting vulnerable residents who cannot safeguard themselves. Legionella checks give confidence that care homes and nursing homes are doing everything possible to prevent outbreaks.
Why Care Homes Face Higher Risks?
Places like care homes and nursing homes must always be maintained perfectly because they are often located in older buildings with enormous and sometimes outdated water systems.

How does Legionella Control in Care Homes Work?
There are several steps when Legionella control is performed in a care home. First, a skilled water engineer or assesor will assess the distribution system and document the results & findings, they will provide instructions and guidance about what must be done. Here’s a quick overview:
- An assessor or engineer will walk through the building and look at the way water is stored, heated, distributed and used on a day to day basis.
- They’ll check over the system, see what treatment is in place, and make sure the quality of the water holds up.
- Samples can be taken straight from taps or tanks to find out if Legionella bacteria is present.
- Afterwards, you’ll be given a written report that explains what’s been found, assessment level and what needs further actions so you know exactly what the next steps are.
Complex Water Systems in Care Homes
Large healthcare premises such as care homes often have intricate water systems. Multiple outlets, long pipe runs, dead legs, and areas where water can stagnate all increase the level of risk. This complexity means that control and management cannot be left to chance. Duty holders must work with competent persons who understand water hygiene and can apply the Health and Safety Executive’s code of practice consistently. Without clear oversight, the risks multiply, and vulnerable residents are left exposed.
Relevant Legionella Legislation
Legionella compliance in care homes is not optional. The law requires every care provider to have suitable precautions in place to prevent exposure to Legionella. The Health and Safety Executive sets out the framework through its code of practice, and the Care Quality Commission expects evidence of compliance as part of care quality inspections.
- HSE ACoP L8 – The Health and Safety Executive’s Approved Code of Practice L8 is the cornerstone of Legionella control in the UK. It explains the responsibilities of duty holders, the need for a risk assessment, and the control measures required to manage risks associated with Legionella bacteria in water systems. Care providers must follow this guidance closely to remain compliant with health and safety law.
- HTM04 01 – In healthcare premises, including care homes and nursing homes, HTM04-01 provides further guidance on safe management of hot and cold water systems. It focuses on risk factors unique to healthcare environments, where vulnerable people may face serious health impacts if water safety is neglected. Following HTM04-01 is essential to meet the expectations of the CQC and to protect residents from contracting Legionnaires’ disease.

How to Control Legionella in Hot and Cold Water Systems for Care Homes?
All bacteria live in temperatures that are ideal for them, ideally like most organisms this is around body temperature but will die when it is under or above these numbers. Hot water should be kept above 60°C, while cold water should be kept under 20°C. This ensures there is minimal Legionella proliferation in the water supply system. It only thrives in the optimal temperatures around in between, so using these measures consistently means there’s limitation of risk.
Legionella Risk Assessment
Without a proper Legionella risk assessment, there’s no way to know what the level of risk is. Conducting a Legionella risk assessment will show the chance of bacteria exposure and what the required steps are to destroy it. An assessment will look into the areas of concern and find out whether additional measures need to be taken.
Responsible Person
It’s the duty of every care home to appoint a responsible person who will regularly do checks and control the system. This may not be a highly skilled professional, but someone who’s trained to recognise if there’s a chance for a problem. If there is, the Legionella duty holder will call the professionals who will take over and solve the issue before it escalates.
Water Safety Plan
The best way to be sure there’s no chance for bacteria growth in the care home water supply system is to have a water safety plan. With it, everyone will know their obligations and protect the environment. Additionally, it is the best protection against inspections coming from the Care Quality Commission.
Legionella Written Scheme of Control
The Legionella Written Scheme of Control is a key part of compliance. It is a living document that explains how risks from Legionella will be prevented or managed. This includes monitoring water temperature, maintaining hot water storage and cold water storage tanks, and flushing outlets. The scheme provides both a legal safeguard and a practical guide for staff.
Legionella Logbooks and Compliance
Legionella Logbooks form the daily record of Legionella control. They track water testing, monitoring results, remedial work, and inspections. These documents are essential for demonstrating compliance to both the Health and Safety Executive and the CQC. More importantly, they provide reassurance that suitable precautions are consistently being taken to protect residents.
Comfort Services Group Because Vigilance Matters in Legionella Control
In the water care business, vigilance is the foundation of quality work. At Comfort Services Group, we take things extremely seriously with a bespoke approach. Every care home is different and every facility is unique, so we tend to do things with maximum precaution and practice detailed care, no matter the severity of the problem. The health and the health of your patients is our top priority.
FAQs
What are the health impacts of Legionnaires’ Disease in Care Homes?
Legionnaires’ disease is a potentially fatal form of pneumonia. Within care homes, older people and those with existing health conditions face the highest risk. The disease is contracted by inhaling airborne water droplets carrying Legionella bacteria and can lead to severe illness, hospitalisation, or even death.
What do I have to do about Legionella in Care Homes?
Every care home must follow the Health and Safety Executive’s code of practice, carry out a Legionella risk assessment, and put in place suitable precautions. Duty holders must appoint a competent person to oversee water hygiene and ensure that records are kept to demonstrate compliance with the Care Quality Commission.
How often should there be Legionella testing in Care Homes?
The frequency of testing depends on the level of risk identified during the assessment, but most care homes require regular monitoring and periodic water samples. Hot water storage, cold water tanks, and outlets within care homes should be tested routinely to ensure water is maintained safely and to reduce the risk of Legionella growth.
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