Our Water Treatment Services
Practical Water Hygiene, Compliance & Remedial Plumbing Solutions
At Sentinel Water Services Ltd, we provide professional water hygiene, compliance, and remedial plumbing services to support the safe management of hot and cold water systems. We work with duty holders, managing agents, and facilities teams to identify risk, implement control measures, and maintain compliance with UK legislation.
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Our approach combines technical compliance knowledge with hands-on plumbing expertise, allowing us to deliver clear advice, effective solutions, and long-term water safety support across commercial, residential, and industrial buildings.
Legionella Risk Assessments
We carry out professional Legionella risk assessments in accordance with ACOP L8, HSG274, and BS 8580-1. Our assessments identify risks within hot and cold water systems, review existing control measures, and provide clear, prioritised recommendations to support effective Legionella management.


Water Sampling
We undertake water sampling to support Legionella risk management where required. Samples are taken by trained technicians and submitted to UKAS-accredited laboratories, with results clearly reported to support informed compliance decisions.
Cold Water Storage Tank Services
We provide inspection, cleaning, disinfection, and condition assessment of cold water storage tanks. Services are delivered in line with UK guidance to reduce contamination risk, maintain water quality, and support ongoing system compliance.


TMV Servicing & Replacement
We service, test, and replace thermostatic mixing valves to ensure safe outlet temperatures and reliable performance. All works are carried out in line with manufacturer requirements and current UK guidance to support scald prevention and system compliance.
Plumbing & Water System Works
From minor repairs to comprehensive plumbing upgrades, we provide efficient and effective remedial plumbing works to address any compliance or performance issues in your water systems.


Compliance Support & Advice
We provide practical compliance support to duty holders, managing agents, and facilities teams. Our advice is clear, proportionate, and focused on helping clients understand their responsibilities and maintain compliance with UK water safety legislation.
Specialist Water Hygiene Services
We offer specialist inspections and surveys to support detailed system assessment and compliance. Services include borescope inspections, outlet condition surveys, descaling, flexible hose assessments, and asset verification to support effective risk control.


Water System Disinfection & Flushing
We work closely with commercial clients to develop customized compliance solutions, providing clear reporting and practical strategies to meet their legal obligations with ease.
