Duvalarm has installed, inspected and monitored fire alarm and security systems from La Prairie on Montreal’s south shore since 1985. Its commercial fire alarm practice is organised explicitly around the Canadian standards: CAN/ULC-S524 for installation, CAN/ULC-S537 for commissioning and verification, CAN/ULC-S536 for annual inspection, and CAN/ULC-S561 for supervision and monitoring. It runs its own 24-hour central monitoring station and also supplies IP and cloud video surveillance, access control and intercom systems.