Apex Risk Assessments Limited
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Legionella Risk Assessment in Reading, Slough, Basingstoke and Hounslow

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What Is a Legionella Survey (a.k.a. Making Sure Your Water Isn’t Plotting Against You)?

A Legionella survey (also known as a Legionella risk assessment, when we’re pretending to be very serious) is a professional inspection of your building’s water systems. That includes hot and cold taps, tanks, showers, pipework, and those mysterious pipes that no one admits responsibility for.

The mission? To make sure Legionella bacteria haven’t checked in, unpacked their bags, and started thriving rent-free. These bacteria cause Legionnaires disease—a severe lung infection—which means this is one guest you definitely don’t want staying over.

We identify risks, rate them, and produce a clear report telling you what’s safe, what’s dodgy, and what needs fixing before your water system gets ideas above its station. The result is a practical Legionella risk assessment that reflects how the building is actually used.

What It Involves (No Wetsuits Required)

System Mapping – “Where Does This Pipe Actually Go?”
We map the entire hot and cold water system: tanks, pipes, outlets, and sections that appear to have been installed during a previous civilisation. If water flows through it, we want it on the map.

Temperature Checks – “Too Hot, Too Cold, Just Right?”
Legionella loves water sitting smugly between 20–45°C. We check temperatures to make sure your system is either hot enough to scare it away or cold enough to make it miserable.

Stagnation Checks – “Dead Legs Aren’t Just Creepy”
We hunt down “dead legs” (unused pipework) and stagnant water. If water hasn’t moved since the Queen’s last jubilee, it’s officially suspicious.

Equipment Condition – “The Bacteria Buffet”
Scale, rust, sludge—we check for anything that might encourage bacteria to throw a dinner party. Clean systems = uninvited guests leaving early.

Control Review – “Is This Actually Happening?”
We review flushing routines, disinfection, and maintenance schedules to confirm they’re real, not just beautifully written and quietly ignored.

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Why This Is a Thing (Apart From Making Inspectors Happy)

Because the Law Says So
UK Health & Safety legislation (HSWA 1974, COSHH) requires businesses and landlords to manage Legionella risk. The law is many things—flexible is not one of them.

Because Breathing Is Popular
Legionnaires’ disease is a potentially fatal lung infection caused by inhaling contaminated water droplets. Showers should refresh you, not hospitalise you.

Because Fixing Things Early Is Cheaper
A little prevention now beats emergency callouts, significant repairs, and explaining yourself to someone holding a clipboard.

The Outcome (The Bit Everyone Actually Cares About)

  • A clear, easy-to-read report grading your Legionella risk (usually low or negligible—no panic stations).
  • Practical recommendations that reduce risk without suggesting you demolish the building.
  • A sensible monitoring plan so your water system stays safe, compliant, and boring in the best possible way, supported by a documented Legionella risk assessment.

In Summary

We make sure your water behaves itself, your paperwork keeps inspectors calm, and your plumbing doesn’t develop a personality.