Over 30 years’ experience in manufacturing innovative products and delivering customer-focused services
- Leak detection
- Water sustainability
- Oil storage maintenance & compliance
- Drainage & interceptor maintenance
- Flood defence
Water is a precious resource and underground leaks can be responsible for significant water wastage if left unchecked. FlowGuardian® is a robust water leak detection and high-usage alarm system that measures mains water flow between a site boundary and a property. FlowGuardian® is a sustainable water conservation solution, saving precious water, saving on water bills.
FlowGuardian® uses two flow meters, the limits of which can be set on installation and actively monitors the mains water supply to buildings. One flow meter is situated at the site boundary and the other within the building after the stopcock (the control tap for your mains water supply).

The system monitors the pipework between the external and internal flow meters for leaks and uses the flow rates and volumes from the internal flow meter to identify excessive water usage. The system provides a sustainable, water conservation solution. FlowGuardian® can help to achieve recognition and can earn one BREEAM credit following assessment and certification.
The programmable, wall-mounted control panel has a simple, interactive push-button LCD display with audible buzzer alarm. All alarms are displayed continuously until corrected and reset on the system.
Andel's Floodline® leak detection systems provide the optimum solution for protecting any building of any size from internal leaks. Combined with FlowGuardian®, the system meets the requirements of BREEAM water monitoring, water leak detection and water flow control. FlowGuardian® can be installed as a stand-alone system or can easily be integrated into a Floodline® leak detection monitoring system providing a sustainable solution to water usage.
FlowGuardian® provides flow monitoring and water leak detection in line with the defined BREEAM standards WAT02 and WAT03 and can earn BREEAM credits subject to a successful audit by an authorised third-party assessor.
The aim of WAT 02 is to ensure water consumption can be monitored and managed, and therefore encourage reductions. One credit – Compliant water monitoring system
The aim of WAT 03 is to reduce the impact of water leaks that may otherwise go undetected. One credit - Compliant leak detection system One credit - Compliant flow control devices
FlowGuardian® is a water leak detection and sustainability solution that actively monitors the mains water supply, identifying major water leaks, excessive water usage, and providing general water usage monitoring.
It uses two flow meters: one at the site boundary and one within the building. It detects major underground water leaks by comparing the flow between these meters and identifies excessive volume or flow rate within user-specified time periods.
Yes, it can earn BREEAM WAT 02 and 03 credits for water leak detection and monitoring.
It features an audible buzzer alarm and a continuous display of all alarms on its interactive push-button LCD.
Yes, it has advanced communications and Modbus connectivity for onward communication to Building Management Systems (BMS) and remote users. It also has an option to control water isolation valves.
Yes, it monitors overall water usage and can help save on water bills by identifying excessive and inefficient water usage.
It requires 110-230 V AC mains supply and provides various volt-free relay outputs for mains fail, flow alarm, flow meter fault, and complete power failure.
Andel offers a 10-year warranty on leak detection products, including FlowGuardian, when subscribed to Andel's Service and Maintenance Plan.