If you have stored water in your property, cold water storage tanks etc., it is important that the storage facilities are maintained correctly.

Landlords are now required by law to have a Legionella Risk Assessment carried out at any of their rentals that have stored water to ensure water temperatures are maintained at the correct level and that tanks are properly fitted, insulated and covered with a securely fitting lid.

What is it and who is at risk?

  • People over 45 years of age
  • Smokers and heavy drinkers
  • People suffering from chronic respiratory or kidney disease
  • diabetes, lung and heart disease
  • anyone with an impaired immune system.

What can we do to prevent it?

Safeguards may involve disinfecting water systems, cleaning shower heads, removal of stagnant water pools from water tanks and systems, insulating pipe work and keeping cisterns properly covered and free of debris.


How do people get it?

People contract Legionnaires' disease by inhaling small droplets of water (aerosols), suspended in the air, containing the bacteria. Certain conditions increase the risk from Legionella if:

  • the water temperature in all or some parts of the system may be between 20-45 degrees centigrade, with is suitable for growth.
  • it is possible for breathable water droplets to be created and dispersed e.g. aerosol created by water outlets.
  • water is stored and/or re-circulated.
  • there are deposits that can support bacterial growth providing a source of nutrients for the organism e.g. rust, sludge, scale, organic matter and biofilms.

At Acoll, all of our operatives are registered with BPEC in the control of legionella prevention and can competently carry out risk assessments and remedial works should they be required.


Please feel free to call us to discuss your requirements.

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