Your Trusted Partner for Legionella Sampling
If you’re here, there’s a good chance you need Legionella testing - maybe as part of your ongoing compliance programme, or because a recent risk assessment identified a potential issue.
You’ve come to the right place. At Titan Water, we provide professional Legionella sampling and microbiological testing services for all types of water systems. From hot and cold outlets to tanks, calorifiers, and showers - we collect, transport, and analyse samples to the highest UKAS-accredited standards.
We take a practical, transparent approach. Our sampling engineers are fully trained to follow HSE and ACOP L8 guidance, ensuring every sample is taken correctly and securely. You’ll receive clear laboratory results and an easy-to-understand report explaining what they mean - not just a spreadsheet of numbers. Whether you need routine testing or reactive sampling after an incident, Titan Water can give you the clarity and confidence to take the right action.
Nationwide Service
Reliable Expertise Wherever You Are
Our experienced management team operate from the Titan head office near Liverpool, but while our roots are firmly in the North West, our reach goes far beyond it. Our engineers carry out Legionella sampling projects across the UK, supported by a trusted network of regional specialists and accredited laboratory partners. Whether it’s a hotel in Edinburgh, a healthcare facility in Leeds, or a manufacturing site in Bristol, we’ve been there – and we know the importance of reliable, accurate water sampling.
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If you need scheduled Legionella sampling, or want confirmation that your existing results are still within safe limits, the team at Titan are always happy to help with practical, straightforward advice.
What Is Legionella Sampling?
Legionella sampling is the process of collecting water samples from key points within a water system to check for the presence of Legionella pneumophila bacteria. It’s an essential part of monitoring control measures and verifying that your water systems remain safe and compliant.
Samples are taken from representative outlets such as tanks, calorifiers, showers, or taps, and sent to a UKAS-accredited laboratory for microbiological analysis. The results are then compared against HSE guidance to confirm whether the system is under control or requires remedial action.
Key objectives:
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Verify control effectiveness: Confirm that temperature / chemical control and treatment regimes are working.
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Provide legal compliance evidence: Satisfy ACOP L8 and HSG274 record-keeping requirements.
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Detect early issues: Identify problems before they become outbreaks or enforcement risks.
When Should Legionella Sampling Be Carried Out?
Sampling frequency depends on the type of system and level of risk. HSE guidance recommends sampling:
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Routinely, in high-risk environments such as hospitals, care homes, and leisure facilities.
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Periodically, as part of an ongoing monitoring programme for cooling towers or complex water systems.
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Reactively, following positive Legionella results, major system changes, or when control measures may have failed.
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After system disinfection, to confirm that remedial works have been successful.
For many commercial premises, Legionella sampling is undertaken every 6 to 12 months, but higher-risk sites may require more frequent testing. Titan Water can help you build a sampling schedule that fits your specific system and compliance requirements.
What Happens After Legionella Samples Are Taken?
Once samples are collected, they’re carefully labelled, temperature-controlled, and transported to a UKAS-accredited laboratory for analysis. Results typically take between 7 to 10 days, depending on the laboratory’s processing times.
You’ll receive a detailed report that includes:
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Laboratory findings showing any Legionella species detected.
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Interpretation of results based on HSE thresholds.
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Recommended next steps, including any disinfection, flushing, or retesting required.
If results indicate elevated levels of Legionella, your Titan Water Account Manager will work with you to investigate the root cause, implement corrective actions, and confirm the system’s return to safe operation through follow-up testing.
In short, we don’t just take samples - we help you understand them and act on them.
Explore Our Full Range of Services
Case Studies
Want to learn more about the kind of work we do? Well you're in luck, as our 'Case Studies' pages are the perfect way to explore some of the 700+ projects we deliver every year, offering a glimpse into the challenges we've faced and the innovative strategies our team have employed to deliver excellence for our customers.
Our Clients
Appointed on our reputation, retained on our results!
With over 75 years of water management experience, Team Titan have become trusted partners to some of the UK's leading corporate brands.
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