How we approach smoke vent rooflights (AOVs) in Sherborne
Smoke vent rooflights (AOVs) in Sherborne means automatic smoke ventilators at the head of stairwells and atria. We cover the DT9 district and the rest of Dorset, with a survey before any price is fixed.
Western coasts take wind-driven rain, so we pay close attention to upstand height and flashing laps on exposed roofs. Typical uses for smoke vent rooflights (AOVs) include communal stairwells, corridors and atria.
Sherborne sits about 8 km from Yeovil and 26 km from Dorchester, and we cover the whole DT9 postcode district and the roads in between.
Choices for your Sherborne project
- Control panel with battery backup
- Rain and wind sensors for daily vent use
- Glazed rooflight or louvred vent
- Service and test plans
- Break-glass and smoke-detector triggers
- Replacement of failed or obsolete units
- Manual override at the fire service access level
What to check first
- The product should be certified to BS EN 12101-2 as a natural smoke and heat exhaust ventilator
- Smoke ventilation is designed to the building's fire strategy — we install to that design
Building control and safety duties in Sherborne
Smoke vents are life-safety equipment: in England the responsible person must keep them maintained under the Regulatory Reform (Fire Safety) Order 2005. We install to the building's fire strategy and the manufacturer's certification.
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 Sherborne?
The ranges below are typical for straightforward jobs; your fixed price follows a survey of your roof.
| 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 |
How the job runs
- Send the details. Postcode, rough size and a photo of the roof and room.
- Survey. We measure the opening, check the roof build-up and agree the options.
- 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.
Smoke vent rooflights (AOVs) near Sherborne
Related work in Sherborne
Questions about smoke vent rooflights (AOVs) in Sherborne
Can you replace an old smoke vent?
Yes, with an equivalent certified unit that matches the original design area and performance, so the fire strategy is not compromised.
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.
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 do I book a survey in Sherborne?
Send your postcode and, if you can, a photo of the roof and the room. We offer a survey date when we reply.
Can you work alongside my builder in Sherborne?
Yes. On new extensions we fit once the opening and upstand are ready and coordinate dates with your builder.
