Service 03
Water Hygiene / sterilisation
We help duty holders manage and control the risks associated with water systems, including Legionella. Our work supports regulatory compliance and ensures safe, well-maintained systems throughout the building lifecycle.
What we deliver
Scope of work
Proactive water hygiene management - from initial risk assessment and remedial works through to ongoing monitoring and digital record keeping for the duty holder.
- Legionella risk assessments to ACOP L8 / HSG274
- Chlorination and thermal disinfection
- Temperature monitoring regimes
- TMV servicing and outlet sampling
- Cold water storage tank inspections and cleans
- Written schemes of control and log books
Standards & compliance
We work to
- HSE ACOP L8
- HSG274 Parts 1, 2 & 3
- BS 8580-1:2019
- BS 8558:2015
Engineers City & Guilds trained in Legionella control, with full BICSc cleaning certification for storage tanks and high-risk assets.
Our process
A clear path to compliance.
Legionella risk assessment
Full site survey to ACOP L8 / HSG274 - schematics, asset register and prioritised remedial actions.
Written scheme of control
Bespoke written scheme defining responsibilities, monitoring frequencies and corrective procedures.
Remedials & disinfection
Chlorination, thermal disinfection, tank cleans, TMV servicing and outlet sampling carried out by trained technicians.
Ongoing monitoring
Temperature monitoring, sentinel and TMV checks, sampling regimes and digital log book with full audit trail.
FAQs
Common questions.
- Are you compliant with ACOP L8 and HSG274?
- Yes - all surveys, remedials and monitoring programmes are delivered in accordance with HSE ACOP L8 and the three parts of HSG274.
- Can you act as our Responsible Person?
- We can support the client's appointed Responsible Person with technical advice, training and full management of contracted control measures.
- Do you provide digital log books?
- Yes - every site we manage is set up with a cloud-based log book, accessible to the duty holder and ready for audit at any time.
- Which laboratories do you use for sampling?
- We use UKAS-accredited laboratories with chain-of-custody documentation for every Legionella and microbiological sample we take.
Other services
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Water treatment / flushing.
We provide comprehensive water treatment and system flushing services to ensure closed and open systems are clean, protected, and compliant. Our approach improves system efficiency, reduces corrosion and fouling, and supports long-term operational performance.
Air / Water Commissioning.
Our HVAC commissioning services verify that building services systems are installed, tested, and operating in accordance with design intent and regulations. We ensure systems perform efficiently, safely, and reliably from handover through to occupation.