Automatic Opening Vent (AOV) systems are a critical part of a building’s smoke control strategy, designed to remove smoke and heat in the event of a fire. Typically installed in communal areas such as stairwells, corridors, and lobbies, AOV systems help to keep escape routes clear, improve visibility, and support safe evacuation while assisting emergency services.

AOV systems fall under the Regulatory Reform (Fire Safety) Order 2005, which requires the Responsible Person to ensure that all life safety systems are properly maintained and in efficient working order. Maintenance and testing should be carried out in line with relevant standards, including BS 9999 and associated guidance.

AOV systems should be inspected and serviced annually to ensure they operate correctly in the event of an emergency. This includes functional testing of vents, control panels, detectors, and actuators, confirming that the system activates and responds as intended.

We specialise in the inspection, testing, and maintenance of AOV systems, including more complex setups integrated with fire alarm systems and smoke control panels. Our structured approach ensures systems remain compliant, fully operational, and ready to perform when required.

A properly maintained AOV system is a key component in protecting occupants, maintaining clear escape routes, and ensuring compliance with fire safety regulations in residential and commercial buildings.