Smoke vent rooflights (AOVs) in Cornwall: the essentials
Our smoke vent rooflights (AOVs) service in Cornwall covers automatic smoke ventilators at the head of stairwells and atria. We survey every job before fixing the price.
Stone cottages, slate roofs and conservation areas are common in the South West, and conservation-profile rooflights keep the roofline quiet. Many South West towns mix Georgian and Victorian terraces with modern estates, so the right product differs street by street.
Towns in Cornwall
What you can choose
- Service and test plans
- Rain and wind sensors for daily vent use
- Glazed rooflight or louvred vent
- Break-glass and smoke-detector triggers
- Electric (24 V) or pneumatic actuation
- Servicing and testing available
- Also usable for day-to-day ventilation
Planning and building rules in England
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.
What do smoke vent rooflights (AOVs) cost in Cornwall?
These are typical supply-and-fit ranges. For an address in Cornwall, scaffold, a hoist for heavy glass, or a new structural opening can move the figure, which is why we survey first.
| 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
- Tell us about the roof. Send the postcode, rough sizes and a photo or two through the form, WhatsApp or the guide-price tool.
- Free survey. For new installations a surveyor measures the opening, checks the roof build-up and talks through glass and options.
- Fixed written quote. You get the product, the work and the price in writing. Nothing is ordered or paid for until you agree.
- Fitting and handover. We fit, seal and make good, then hand over product data, warranties and any certificate paperwork.
Smoke vents in nearby areas
Common questions
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.
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 often should AOVs be tested?
Industry guidance recommends regular functional checks and at least annual servicing. Your fire risk assessment sets the regime.
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.
Do you fit smoke vent rooflights (AOVs) across Cornwall?
Yes. We survey and fit smoke vent rooflights (AOVs) across Cornwall, including Redruth, Falmouth, St Austell.
