Smoke vent rooflights (AOVs) in Sevenoaks: what is involved?
For Sevenoaks homes and buildings we offer smoke vent rooflights (AOVs): automatic smoke ventilators at the head of stairwells and atria. We measure first, specify to the opening and confirm any planning or building-control points before quoting.
Orangery-style extensions with lanterns are popular across the South East, and solar-control glass makes a big difference on south-facing gardens. Typical uses for smoke vent rooflights (AOVs) include blocks of flats and commercial buildings with a smoke strategy.
Neighbouring towns include Tonbridge (10 km) and Orpington (13 km). We offer a survey date when we reply to your enquiry.
Choices for your Sevenoaks project
- Control panel with battery backup
- Electric (24 V) or pneumatic actuation
- Break-glass and smoke-detector triggers
- Glazed rooflight or louvred vent
- Service and test plans
- Glazed units bring daylight to stairwells
- Opens automatically on alarm signal
Things we check at survey
- The product should be certified to BS EN 12101-2 as a natural smoke and heat exhaust ventilator
- Replacing a vent with a non-equivalent product can affect the fire strategy
Regulations for smoke vent rooflights (AOVs) in Sevenoaks
Smoke vents are life-safety equipment: in England the responsible person must keep them maintained under the Regulatory Reform (Fire Safety) Order 2005. We supply manufacturer-certified units and arrange installation, commissioning and servicing through specialist smoke-control engineers.
For buildings other than dwellings, Approved Document L Volume 2 sets limiting U-values of 2.2 W/m²K for rooflights and 3.0 W/m²K for roof ventilators, including smoke vents. Fire classification of rooflight materials near boundaries is checked at specification.
See our building regulations guide for U-values, glazing limits and self-certification.
What do smoke vent rooflights (AOVs) cost in Sevenoaks?
Guide prices for smoke vent rooflights (AOVs) in Sevenoaks are the same as anywhere we work — what changes the price is the job: access, structure, scaffold and finishing.
| Option | Guide price inc VAT | Ex VAT |
|---|---|---|
| Large glazed AOV with actuators | £4,795 – £7,795 | £3,995 – £6,495 |
| Standard glazed AOV Typical | £3,595 – £4,795 | £2,995 – £3,995 |
| Replacement vent onto existing upstand | £2,995 – £3,595 | £2,495 – £2,995 |
The process, step by step
- Get in touch. Use the form, WhatsApp or the guide-price tool with your Sevenoaks address.
- Free site visit. For new installs we survey free, measure and confirm the roof detail.
- Fixed quote. Product, work and price in writing — nothing is ordered until you agree.
- Fit and make good. We fit, seal, test and finish the reveal, then hand over the paperwork.
Nearby towns
Other services in Sevenoaks
Common questions
Do smoke vents need a control panel?
Electric AOVs work with a control panel that links them to detectors, the fire alarm and override switches.
How often should AOVs be tested?
Industry guidance recommends regular functional checks and at least annual servicing. Your fire risk assessment sets the regime.
Can a smoke vent be used for normal ventilation?
Many dual-purpose units also open for daily ventilation, closing automatically in rain.
Do I need to be at home for the survey in Sevenoaks?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
Do you fit smoke vent rooflights (AOVs) in Sevenoaks?
Yes. We survey and fit smoke vent rooflights (AOVs) in Sevenoaks and across Kent. Send your postcode and we will offer a survey date when we reply.
