When it comes to water hygiene, prevention is key. At L8 Protection, we specialise in carrying out detailed on-site surveys and inspections designed to safeguard your water systems against Legionella and other waterborne risks.
Our trained water engineers take a hands-on approach, inspecting, testing, and evaluating every aspect of your system to make sure it’s performing safely and in full compliance with ACoP L8 and HSG 274 guidance. Whether you’re responsible for a single building or a large estate, our goal is simple: to help you stay compliant and protect the people who use your water every day.
Your water system is a living network; temperature changes, stagnation, and biofilm can all create opportunities for harmful bacteria like Legionella to grow. That’s why regular surveys and inspections are so important.
Here’s what they help you achieve:
Every building is different, so we tailor our surveys to match your site and its specific risks. Here’s what you can expect when we visit:
We start by mapping out your water systems, creating or updating a full asset register and schematic. This helps identify where potential risk areas may exist, such as dead legs, calorifiers, cold-water tanks or thermostatic mixing valves (TMVs).
Our engineers test water temperatures across key outlets to ensure hot and cold systems are operating within safe ranges. We look for inconsistencies and identify areas that could support bacterial growth.
We carry out a detailed visual review of tanks, pipework, strainers, filters and fittings. During this, we assess the cleanliness of components, look for scale, corrosion or biofilm, and check whether regular flushing and maintenance routines are being followed effectively.
We test system flow rates and identify any sections of pipework that aren’t circulating as they should. This helps pinpoint stagnation risks and provides insight into how the system could be rebalanced or improved.
Where required, we take water or swab samples for Legionella and microbiological analysis at UKAS-accredited laboratories. We interpret the results and provide practical guidance on next steps.
After every survey, you’ll receive a detailed report outlining our findings, supported by photographs, risk scores and tailored recommendations. We’ll also highlight priority actions to help you address any immediate concerns.

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