What do smoke vent rooflights (AOVs) in Dartford involve?
Smoke vent rooflights (AOVs) in Dartford means automatic smoke ventilators at the head of stairwells and atria. We cover the DA1 district and the rest of Kent, with a survey before any price is fixed.
Many South East homes have been extended more than once, and an old dome over an earlier extension is often due for replacement. Think of smoke vent rooflights (AOVs) for blocks of flats and commercial buildings with a smoke strategy.
Neighbouring towns include Bexley (5 km) and Bexleyheath (5 km). We offer a survey date when we reply to your enquiry.
What you can choose
- Electric (24 V) or pneumatic actuation
- Control panel with battery backup
- Service and test plans
- Rain and wind sensors for daily vent use
- Glazed rooflight or louvred vent
- Servicing and testing available
- Replacement of failed or obsolete units
Before you order: points to check
- Replacing a vent with a non-equivalent product can affect the fire strategy
- The product should be certified to BS EN 12101-2 as a natural smoke and heat exhaust ventilator
Regulations for smoke vent rooflights (AOVs) in Dartford
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. Fragile-roof safety and access are planned before work starts.
Our planning guide covers each nation in more detail.
What do smoke vent rooflights (AOVs) cost in Dartford?
Guide prices for smoke vent rooflights (AOVs) in Dartford 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 Dartford address.
- Measure and check. A surveyor visits Dartford, measures and checks structure and access.
- Fixed quote. Product, work and price in writing — nothing is ordered until you agree.
- Installation day. Usually one day into a prepared opening, longer for new openings.
Neighbouring towns
Related work in Dartford
Common questions
Who is responsible for maintaining smoke vents?
The responsible person (or duty holder in Scotland, appropriate person in Northern Ireland) for the building must keep fire safety systems maintained. We can arrange servicing and keep records.
Can a smoke vent be used for normal ventilation?
Many dual-purpose units also open for daily ventilation, closing automatically in rain.
Do you design the smoke strategy?
No — the strategy comes from the building's fire engineer or designer. We supply, install, commission and service to it.
How do I book a survey in Dartford?
Send your postcode and, if you can, a photo of the roof and the room. We offer a survey date when we reply.
Do you fit smoke vent rooflights (AOVs) in Dartford?
Yes. We survey and fit smoke vent rooflights (AOVs) in Dartford and across Kent. Send your postcode and we will offer a survey date when we reply.
