What is Legionella?

Legionella is a type of bacteria that most commonly causes one of two lung diseases:

• Pontiac fever is a mild respiratory disease
• Legionnaires’ disease is a type of severe pneumonia

Legionella occurs naturally in lakes and rivers, but it can grow inside household water systems if conditions are right. Stagnant water, warm temperatures (20-45°C) and biofilm buildup in pipes all encourage the bacteria to multiply, which is why a legionella water test is the only reliable way to know whether your home’s water is affected.

Who Needs Legionella Testing & Why?

Legionnaires’ disease can be fatal. Inhaling contaminated water droplets, such as from a showerhead or tap, can lead to infection. As a result, regular Legionella testing is important for:

• • Homeowners & Landlords: Ensure your domestic water system is safe, especially before re-occupying a property.
  • Holiday Home Owners: If your property has been empty for some time, stagnant water can promote bacterial growth.
  • Hot Tub & Pool Owners: Legionella thrives in warm water environments.
  • Private Well Users: Regular testing is crucial if your home is not connected to a mains water supply.
  • Immunocompromised Individuals: If a household member is at a higher risk, testing can prevent infection.