What to Do in a Legionella Outbreak – A Practical Guide for Duty Holders
This blog explains what duty holders should do during a suspected or confirmed legionella outbreak, including how to reduce the immediate risk, who must be…
Legionella Articles
Legionnaires’ Disease Outbreak in London (2026)
In early 2026, an increase in cases of Legionnaires’ disease across London triggered a coordinated investigation led by the UK Health Security Agency, working alongside…
Landlords’ Guide: Best Practices for Legionella Control
This blog explains the key legionella control responsibilities landlords need to understand, including legal duties, risk assessments, safe water temperatures, flushing routines, appliance maintenance and…
HSG274: A Complete Guide to the HSE’s Legionella Technical Guidance
Last updated: May 2026 | Reviewed by H2O Comply If you are responsible for a building or its water systems, you have almost certainly come…
Ensuring Safe Water Systems with Annual Legionella Risk Assessments
It was a wake-up call. Water safety isn’t something you can set and forget. It’s a journey from tap to tenant, and every step matters….
Legionella Responsibilities for Landlords: A Vital Guide to Water Hygiene Compliance
Ensuring the safety and wellbeing of tenants is a fundamental duty for landlords. One significant yet often overlooked risk in rental properties is Legionella bacteria,…
What to Expect from Legionella Risk Assessments
Legionella bacteria pose a serious health risk, particularly in water systems where conditions allow them to thrive. Legionella risk assessments are a crucial step in…
6 Common Legionella Risks in Commercial and Residential Properties
Understanding Legionella Risks Legionella bacteria can thrive in any water system if conditions allow, posing a serious risk of Legionnaires’ disease, a potentially fatal form…
The Top 5 Most Likely Places You Will Find Legionella Bacteria
Legionella bacteria, which cause Legionnaires’ disease, are found naturally in freshwater environments such as rivers and lakes. However, when they enter artificial water systems, they…
Water Temperature And Bacterial Growth
Water temperature plays a vital role in maintaining the safety and hygiene of water systems. Improper temperature management can encourage the growth of harmful bacteria,…