Legionella control solutions are the measures that keep Legionella bacteria from growing in hot and cold water, cooling, spa and pool systems, so the duty of care under ACoP L8 and HSG274 is met. The strongest also clear the biofilm conventional dosing leaves behind and prove every result to an independent laboratory.
Legionella control is a named, non-delegable duty under health and safety law, and the failure mode is exactly the one conventional dosing struggles with.
Legionnaires' disease is no longer an overseas-resort problem. In 2024 most cases in England and Wales were caught in the community rather than abroad, and the disease still killed around one in thirty-five of the people who contracted it. A single spa-pool failure has led to three deaths and a fine of GBP 1 million under health and safety law, and that duty of care cannot be delegated away.
ACoP L8 and HSG274 set what control looks like: keep hot water hot and cold water cold, stop stagnation, keep systems clean, and control the biofilm in which Legionella shelters and grows. Biofilm is the part chlorine-only and temperature regimes leave behind, so the bioburden rebounds between chemical shocks and the risk never truly clears.
Most operators meet all of this with separate contracts: one firm for Legionella, another for the pool plant, another for the air, another for energy. No one owns the whole water estate, so when something fails there are four suppliers and no single answer, which is not a defence an inspector or a court will accept.
We take the duty of care across the whole water estate, then deliver the result you are accountable for: reliable, compliant control with independent evidence behind it.
Across cooling systems, hot and cold water, spa and pool, we bring Legionella and biofilm risk under reliable, compliant control, the failure mode conventional dosing struggles with, and reduce the combined chlorine and chemical load your pool water needs to stay safe. Clearing the biofilm at source keeps the bioburden down on routine maintenance rather than rebounding between chemical shocks.
It works on live systems without taking them out of service, and every result is verified by an independent or accredited laboratory. So the same work that controls the risk also produces the evidence your ACoP L8, HSG274 and HSG282 risk assessments and inspections require. One accountable owner carries the whole water estate under one audit trail.
Bring Legionella and biofilm risk across your cooling, hot and cold water, spa and pool under reliable, compliant control, with one named, accountable owner of the duty of care instead of four separate contractors.
Target the biofilm where Legionella and other pathogens survive and re-grow, independently verified, the exact failure mode chlorine-only and temperature-only regimes leave behind.
Bring a recurring waterborne pathogen problem to 0 cfu/g in four days where conventional dosing had failed, confirmed by a UKAS-accredited laboratory, and hold it on routine maintenance dosing.
Generate the independently verified evidence your ACoP L8, HSG274 and HSG282 risk assessments and inspections need, so control stands up to an inspector, an audit or a court.
Reduce the combined chlorine and chemical load it takes to keep pool and spa water safe, with superior clarity, so swimmers and staff are around less chemistry in the water and the air.
Replace the Legionella firm, the pool-plant firm, the air firm and the energy broker with a single accountable owner of the whole water estate, and one audit trail.
Legionella-control results you can put in front of an inspector.
The UK environmental and safety duties that commonly reach legionella control solutions. Open any one for what it requires, the deadlines, what is at stake, and how to evidence control. Every entry is sourced.
The two questions every water-safety lead asks are the right ones: can you do it without taking the system offline, and will it keep me compliant?
The answer to both is yes. The work is designed around live operations, with no need to take the water system, the pool or the spa out of service, and it keeps you within ACoP L8, HSG274 and HSG282 with independently verified evidence for your risk assessments and inspections. We start with one site or one system, prove the result, then extend across the estate. You keep a single accountable owner of the whole water estate, not four contractors pointing at each other.
They are the measures that keep Legionella bacteria from growing in hot and cold water, cooling, spa and pool systems, so the duty of care under ACoP L8 and HSG274 is met. The strongest also clear the biofilm conventional dosing leaves behind and prove every result to an independent laboratory.
ACoP L8, supported by HSG274, sets out the duty to identify and assess Legionella risk and to control it: keeping hot water hot and cold water cold, preventing stagnation, keeping systems clean, controlling the biofilm in which Legionella grows, and recording it all. The duty is named and non-delegable.
By keeping hot water hot and cold water cold, stopping stagnation, keeping systems clean and controlling the biofilm where Legionella shelters. We bring those controls under one accountable owner across the whole water estate and verify the result with an independent or accredited laboratory.
Biofilm is the thin microbial layer that forms on wetted surfaces, and it is where Legionella shelters, grows and resists treatment. Chlorine-only and temperature-only regimes leave it behind, so the bioburden rebounds between chemical shocks. Clearing the biofilm at source is what keeps control reliable.
They are severe and personal. A single spa-pool failure has led to three deaths and a fine of GBP 1 million under health and safety law, alongside prosecution and reputational exposure. The duty of care cannot be delegated away, so the named Responsible Person carries it.
Yes. Results are confirmed by UKAS-accredited and water-authority laboratories, including a recurring pathogen problem eliminated to 0 cfu/g in four days and an estate water system of 1.6 million litres returned to zero Legionella, E. coli and coliforms.
No. The work is designed to fit live operations. There is no need to take the water system, pool or spa out of service while Legionella risk is brought under reliable, compliant control across the estate.
Tell us where Legionella risk sits hardest across your estate. We will review it and show you the outcome and the evidence, in confidence, before you commit.
Tell us the cost, the risk or the obligation you are facing. A senior member of our team will respond, in confidence, with how we would help.
