Under health and safety law, all water systems must be assessed for the risk of Legionella bacteria, which can cause Legionnaires’ disease—a potentially fatal form of pneumonia.

Our assessments review system design, maintenance history, and management procedures, and include recommendations for remedial work. This may include pipework removal, tank disinfection, and procedural updates.

Controlling water temperature is key to preventing Legionella growth. Cold water should remain below 20°C and hot water above 60°C (or 55°C in healthcare environments).

EDSB provides on-site or remote monitoring and flushing regimes, with full record-keeping through remote or on-site logbooks.

Regular cleaning and disinfection of cold-water storage tanks ensures compliance with water hygiene standards and reduces the risk of contamination.

EDSB can inspect, clean and chlorinate tanks to ensure safe water quality and system reliability.

Where systems have been altered, left stagnant, or require additional control measures, secondary disinfection may be necessary to maintain water quality.

We provide planned disinfection services using approved materials and methods, ensuring compliance with industry standards.

TMVs help regulate water temperature at outlets to prevent scalding and maintain user comfort. Over time, they can become blocked or fail.

Regular servicing ensures reliable performance and is an important part of a Legionella control regime.

Sampling and laboratory testing for bacteria, including Legionella and TVCs, can confirm water quality and the effectiveness of control measures.

EDSB can arrange microbiological sampling as part of routine monitoring or investigation following a positive result.

Pressure-reducing valves (PRVs) control system pressure to prevent wear, leaks or damage to fixtures. Over time, they may require adjustment or replacement.

Our team can inspect, service, and install PRVs across a wide range of systems.

Shower heads can harbour biofilm and bacteria if not regularly maintained. Routine cleaning and disinfection reduce this risk.

EDSB offers planned and ad hoc cleaning and chlorination for shower systems in line with best practice. 

Calorifiers (hot water cylinders) should be regularly inspected and, where necessary, cleaned and disinfected to prevent Legionella growth.

We carry out internal inspections using access hatches or specialist cameras, providing full documentation and recommendations.