Automatic Opening Vent (AOV) Systems

An automatic opening vent system (AOV) is essential for effective smoke control and safe evacuation during a fire. These systems help remove smoke, heat and toxic gases, improving visibility and reducing risk to life. At Admiral Systems, we design, install and maintain AOV solutions that meet the requirements of Approved Document B and BS EN 12101.

Whether for stairwells, corridors or atria, our AOV systems are tailored to each building to ensure compliance, performance and peace of mind.

Compliant AOV Design and Installation

Automatic opening vent systems are often required in multi-storey residential blocks, commercial developments and public buildings. They are activated either by fire alarm systems or manual call points and are used to keep escape routes clear and assist the fire service during an incident.

Our AOV solutions include:

Natural smoke and heat exhaust ventilation systems (NSHEVs)
Mechanical smoke extraction systems
Stairwell and corridor vents
Smoke dampers, control panels and actuators
Integrated control with fire alarm and building systems

Professional Installation and Servicing

With over 30 years of experience in fire protection, Admiral delivers complete AOV solutions from design to ongoing maintenance. Our engineers are fully trained, DBS checked and experienced in working within live environments.

Our servicing and maintenance packages include:

– Regular performance testing and fault checks

– Replacement of actuators, sensors or control panels if required

– Battery checks and system resets

– Full service logs and documentation for inspections and insurers

We support new installations as well as upgrades or repairs to existing AOV systems, ensuring your property meets its legal and safety obligations.

Trusted by Clients Across Sectors

We install AOV systems in a variety of buildings including:

Apartment blocks and mixed-use developments
Schools, universities and public sector buildings
Care homes and healthcare facilities
Retail, commercial and office spaces

We understand your responsibilities as a building owner or manager and provide turnkey solutions that keep occupants safe and escape routes clear in the event of a fire.

Trusted Experts in Fire Safety and Smoke Ventilation

With over 30 years of experience in fire protection, Admiral delivers reliable, compliant AOV solutions for a wide range of environments. Our team understands the critical importance of smoke control in supporting safe evacuation and emergency response. We work with schools, apartment buildings, public sector sites and commercial premises to install and maintain AOV systems that meet the latest building regulations and British Standards.

Your Safety is Our Priority

Request a consultation today. We serve clients across London and the South East of England.

“We’ve used Admiral Security for 15 years across retail, pubs, domestic and vacant sites. They’re reliable, responsive and truly understand our needs.”
- Multi-Sector Business Landlord, London & South East
"Admiral’s installation of five door entry systems went perfectly. Their operative was meticulous and flexible, and the standard of workmanship was excellent. To complete this work during term time, in a busy school, without any complaints or disruption is outstanding. It is refreshing to work with a company that combines traditional standards of workmanship and customer care with real value for money. I wouldn’t hesitate to recommend them."
- SEN School, Surrey
"From Mark, who handled our enquiry and site visit, to Dave, who completed the install — the service was excellent. The quality of work was impressive, and we’d have no hesitation recommending Admiral."
- Small Business, South London
"Admiral Systems have installed and maintained alarm systems for every house I’ve owned. The service we’ve received over more than 20 years has been excellent, and I would happily recommend them to anyone looking to secure their home."
- Homeowner, Surrey
"The team at Admiral were incredibly easy to deal with, and communication was strong throughout — from sales to aftercare. They listened to my requirements, surveyed the premises, and recommended a tailored security system to suit the building. The price was very reasonable, and the 12-month guarantee gave added peace of mind. I would thoroughly recommend Admiral Security for their personal and professional service."
- Fashion Outlet
"We were very impressed with the engineer who installed our alarm. He was extremely professional, polite, and delivered excellent service. When your engineers are this good, it reflects brilliantly on your entire company. I felt it was important to pass on this positive feedback — the job was completed to a very high standard."
- Homeowner