How we approach smoke vent rooflights (AOVs) in Truro
Thinking about smoke vent rooflights (AOVs) in Truro? The short answer: automatic smoke ventilators at the head of stairwells and atria. The longer answer depends on your roof, which is why we survey before we price.
Stone cottages, slate roofs and conservation areas are common in the South West, and conservation-profile rooflights keep the roofline quiet. Smoke vent rooflights (AOVs) suit communal stairwells, corridors and atria.
Truro is the main town we list in Cornwall; we also cover nearby Falmouth and Redruth.
What you can choose
- Break-glass and smoke-detector triggers
- Service and test plans
- Glazed rooflight or louvred vent
- Rain and wind sensors for daily vent use
- Control panel with battery backup
- Glazed units bring daylight to stairwells
- Replacement of failed or obsolete units
Things we check at survey
- 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
Regulations for smoke vent rooflights (AOVs) in Truro
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.
Read the planning permission guide before you commit to a design.
What do smoke vent rooflights (AOVs) cost in Truro?
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
- Get in touch. Use the form, WhatsApp or the guide-price tool with your Truro address.
- Survey. We measure the opening, check the roof build-up and agree the options.
- Written price. You receive a fixed price listing the unit, the work and the lead time.
- Fitting and handover. We install, clean down and leave product and warranty documents.
Neighbouring towns
More we do in Truro
Smoke vent rooflights (AOVs) in Truro: questions
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 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.
Do I need to be at home for the survey in Truro?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
How do I book a survey in Truro?
Send your postcode and, if you can, a photo of the roof and the room. We offer a survey date when we reply.
