Water hygiene services are the risk assessment, monitoring, treatment and record keeping that keep a building's water systems safe and legionella under control, meeting the duty of care set out in the HSE Approved Code of Practice L8. The strongest also clear contamination at source and cut the water and energy cost the systems carry, evidenced independently.
Facilities, estates and compliance teams carry legionella duty of care on every building, on water systems that harbour risk out of sight, while energy and disclosure duties expand underneath.
Legionella control is a legal duty of care. Under the HSE Approved Code of Practice L8 and the HSG274 guidance, the duty holder for each building must assess the risk, appoint a responsible person, put controls in place and keep a current written risk assessment and records. If something goes wrong, the burden falls on you to prove you met that duty.
The risk lives where it is hardest to see. Biofilm, dead legs, stored and heated water and low-use outlets let waterborne pathogens persist between routine checks, and conventional chemical dosing can mask a problem rather than remove it, so the same contamination returns and the records never quite settle.
At the same time the same water systems carry cost. Energy is the largest controllable overhead, commercial buildings waste roughly 25 to 30% of it, and minimum efficiency standards are tightening from EPC E today towards a proposed EPC C by 2027 and EPC B by 2030, with SECR and the new UK Sustainability Reporting Standards from the 2026 financial year demanding the data to back it.
We improve how the water systems you already run perform, so contamination is cleared rather than masked, the compliance evidence is auditable, and water and energy cost falls, with no capital rebuild and no disruption to occupiers.
Across the estate, water is treated and monitored in place so biofilm is cleared at source and the bioload stays down on routine maintenance rather than rebounding between chemical shocks. That gives the responsible person a system that is genuinely under control, not just dosed, and a record that stands up to scrutiny.
Every result is verified by an independent or accredited laboratory, so the same work that satisfies your legionella duty of care also produces the auditable water and energy evidence your SECR and UK SRS disclosures need. One accountable partner carries it across every building.
Remove 99.99% of biofilm in independent testing (ASTM E2799), the environment roughly a thousand times more resistant to disinfection, where waterborne pathogens survive and systems foul, with no toxic chemical residue.
Bring recurring waterborne bioload to 0 cfu/g in four days where conventional dosing had failed for years, confirmed by a UKAS-accredited laboratory, and hold it on routine maintenance.
Keep each building demonstrably under control against the ACoP L8 standard, with a current written risk assessment, monitoring and records that put the duty holder on the front foot.
Produce the auditable water and energy data your SECR and UK SRS reporting require, measured rather than estimated, from the same work that controls the risk.
Cut the water and energy these systems carry, with building energy optimisation delivering 15 to 30% savings and heating, ventilation and cooling the single largest opportunity, measured against your baseline.
Reduce reliance on dosing chemistry and the cost and scrutiny that come with it, with effective disinfection and no toxic chemical residue left in the system.
Independently evidenced, never merely claimed.
The UK environmental and safety duties that commonly reach water hygiene services. Open any one for what it requires, the deadlines, what is at stake, and how to evidence control. Every entry is sourced.
The questions facilities and compliance teams ask first are the right ones: does it actually control the risk, will it disrupt occupiers, and will the evidence stand up to a duty-of-care audit?
On all three the answer is built in. It clears contamination at source on the water systems you already run rather than masking it with dosing, it is delivered in place on occupied buildings with no refit and no disruption to occupiers, and every result is verified by an independent or accredited laboratory so the record holds up to scrutiny. We start with your highest-risk or hardest-to-control building, prove the result, then roll it across the estate.
Water hygiene services are the risk assessment, monitoring, treatment and record keeping that keep a building's water systems safe and legionella under control, meeting the duty of care in the HSE Approved Code of Practice L8. The strongest also clear contamination at source and cut the water and energy cost the systems carry.
The ACoP L8 standard requires the duty holder to identify and assess the sources of legionella risk in the water systems, put a written scheme in place to prevent or control that risk, implement and monitor it, keep records, and appoint a responsible person to manage it. Following it is how you demonstrate you have met the legal duty of care.
The duty holder is the employer, landlord or person in control of the premises, anyone with health and safety responsibility for the water systems. They must appoint a competent responsible person to manage the controls day to day, but the legal duty of care to keep people safe remains with the duty holder.
A legionella risk assessment must be kept current and reviewed regularly, and whenever there is reason to believe it is no longer valid, for example after changes to the water system, a change in building use or occupancy, or monitoring results that suggest the controls are not working. The monitoring regime itself runs continually alongside it.
The water systems are monitored against the risk assessment, and results are acted on before they become incidents. Where contamination recurs, clearing it at source rather than redosing is what brings the system under control, evidenced to a UKAS-accredited laboratory so the record stands up to an audit.
The same water systems that carry legionella risk carry cost. Optimising them in place delivers building energy savings of 15 to 30%, with heating, ventilation and cooling the single largest opportunity, and reduces reliance on dosing chemistry, measured against your baseline so the saving is reportable for SECR and UK SRS.
Yes. Every result is verified by an independent or accredited laboratory, including 99.99% biofilm removal in independent testing (ASTM E2799) and recurring pathogens brought to 0 cfu/g confirmed by a UKAS-accredited laboratory. The proof is measured, not claimed, so it holds up to a duty-of-care audit.
Tell us the legionella duty, the water-system risk or the cost you are carrying. We will quantify the outcome for that building, 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.
