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    Residential Blocks

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    1. Legionella Test on Water Heaters & Calorifiers

      Legionella Test on Water Heaters & Calorifiers


      Test Kit for Laboratory analysis of water sample from Water Heaters & Calorifiers for legionella bacteria 

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    2. Potable Water Quality Test on CWS Tanks

      Potable Water Quality Test on CWS Tanks


      Cold Water Storage Tank Potable Water Quality Test Kit. A Laboratory analysis of stored cold water in a CWS tank to check it is fit to drink

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    3. Potable Water Quality test kit

      Potable Water Quality Test Kit


      Potable Water Quality test kit

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    Legionella test kits for Residential Blocks

    Danger Areas

    It is common for tower blocks to have communal cold water storage, sometimes a central hot water system provides water for all the residents too. Problems can occur when some of the properties are empty or the tenants/owners are absent for extended periods. The lack of flow into just one property means that the hot water pipework cools sufficiently for legionella to proliferate, in time these bacteria can then affect the remainder of the building.
    Testing for legionella on the flow and return can highlight low level contamination before the risk increases.

    Most residential blocks just have communal cold water storage tanks which feed into each property, the responsibility then rests with individual tenants/owners to generate their own hot water requirements. In these cases, Landlords routinely test the cold water storage tanks for legionella bacteria as an ‘insurance’ against claims from tenants/owners who fall ill with legionnaires’ disease and are looking for someone to blame!


    • Management of Health & Safety at Work Regulations 1999
    • Control of Substances Hazardous to Health Regulations 1999
    • Health & Safety at Work Act 1974


    HSG274 Legionnaires’ disease: Technical guidance:-

    • Part 2: The control of legionella bacteria in hot & cold water systems

    HSE - Essential information for providers of residential accommodation

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