Legionella Testing by Experts – Stay Safe and Compliant
If your legionella risk assessment or routine monitoring shows a need for testing, Dantek Environmental is here to guide you every step of the way.
We provide expert advice on collecting water samples, then coordinate fast, accurate analysis through our UKAS-accredited laboratories. You’ll receive certified results and full documentation to support your compliance requirements.
Do You Need Legionella Testing? Here’s When It’s Essential
Legionella testing isn’t always required as part of routine monitoring, but certain risk factors mean you must take action. At Dantek, we help businesses identify when testing is essential – and ensure it’s done to the highest standards.
You may need to test for Legionella if:
- Your Legionella Risk Assessment identifies a need for testing
- You’re unsure if current control measures are effective
- The system has been treated with biocide
- There are issues with temperature control or disinfectant levels
- The building houses vulnerable occupants (e.g. hospitals, care homes)
- An outbreak of legionellosis has occurred or is suspected
- You suspect low usage, water stagnation, or structural risks (e.g. dead-legs, heat loss, crossflow)
Unsure if you meet any of these criteria? Contact our experts for advice.
If Legionella testing is required, Dantek offers two simple options:
– We’ll send a qualified technician to collect your samples
– Or, if you prefer, we’ll guide you through the DIY collection process
All testing must follow BS7592: Sampling for Legionella Bacteria in Water – the official UK guidance. Samples are required from both hot and cold-water systems, and the number will depend on your system’s size and complexity.
We’ll provide full instructions, including:
- Where to take each sample from
- How to label samples correctly (location, temperature, pre/post-flushing)
Once collected, your samples are sent to a UKAS-accredited laboratory for analysis.
As soon as results are available, we’ll notify you of any positive or negative findings – and supply a certificate of compliance for your records.
If your Legionella test result is positive, don’t worry – Dantek will guide you through every step.
First, we’ll recommend a resample to confirm the presence of bacteria. If a second test also comes back positive, we’ll help you take immediate and appropriate action based on the severity of contamination.
Depending on the result, we may advise you to:
- Review and improve your control measures
- Update your Legionella risk assessment to identify vulnerable areas
- Perform a full system disinfection if required
After remedial action, ongoing retesting is essential to verify that your water system is safe and compliant. We’ll support you through the monitoring process to ensure control measures are effective and sustainable.
Need urgent advice? Contact the Dantek team.