Specialist management of evaporative cooling systems to control legionella risk and maintain efficient operation
Cooling towers and evaporative condensers present an elevated legionella risk because they create aerosols and operate at temperatures favourable to bacterial growth. Effective management requires specialist attention including chemical treatment, microbiological monitoring, physical cleaning and system maintenance.
Under HSG274 Part 1, cooling towers and evaporative condensers must be registered with the local authority and managed under a robust written scheme.
A team you can trust
What sets us apart
What is included
- Specific risk assessment for evaporative systems
- Written scheme development
- Chemical treatment programme (biocides, scale and corrosion inhibitors)
- Routine water quality monitoring
- Monthly legionella sampling during operation
- Physical inspection and maintenance
- Periodic cleaning and disinfection
- Record keeping and compliance documentation
Registration Requirements
Cooling towers and evaporative condensers must be notified to the local authority under the Notification of Cooling Towers and Evaporative Condensers Regulations 1992. We can advise on registration requirements and help ensure you are compliant.
Cooling Tower Treatment
Common Issues We Find
- Towers not registered with the local authority
- Inadequate chemical treatment programmes
- Sampling schedules that do not meet guidance
- Poor record keeping
- Physical condition issues (drift eliminators, fill pack, basin)
- No contingency plan for positive legionella results
All Legionella & Water Hygiene Services

Legionella Risk Assessments

Cleaning & Disinfection Services

Legionella Monitoring & Maintenance

Cooling Tower Treatment

