What do smoke vent rooflights (AOVs) in Trowbridge involve?
Our smoke vent rooflights (AOVs) service in Trowbridge covers automatic smoke ventilators at the head of stairwells and atria. Every job starts with a survey of the opening, the roof covering and the room below, and a fixed written price.
Many South West towns mix Georgian and Victorian terraces with modern estates, so the right product differs street by street. Typical uses for smoke vent rooflights (AOVs) include blocks of flats and commercial buildings with a smoke strategy.
From Trowbridge to Melksham, Bath and Frome, the same survey-first process applies: measure, specify, fix the price, then fit.
Options we can specify in Trowbridge
- Break-glass and smoke-detector triggers
- Rain and wind sensors for daily vent use
- Control panel with battery backup
- Service and test plans
- Glazed rooflight or louvred vent
- Replacement of failed or obsolete units
- Opens automatically on alarm signal
Before you order: points to check
- Replacing a vent with a non-equivalent product can affect the fire strategy
- Whoever holds the building's fire-safety duties (the responsible person, the duty holder in Scotland or the appropriate person in Northern Ireland) must keep systems maintained and tested
Regulations for smoke vent rooflights (AOVs) in Trowbridge
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.
Read the planning permission guide before you commit to a design.
Smoke vent rooflights (AOVs) prices in Trowbridge
These are typical supply-and-fit ranges. For an address in Trowbridge, 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 |
The process, step by step
- Get in touch. Use the form, WhatsApp or the guide-price tool with your Trowbridge address.
- Measure and check. A surveyor visits Trowbridge, measures and checks structure and access.
- Written price. You receive a fixed price listing the unit, the work and the lead time.
- Installation day. Usually one day into a prepared opening, longer for new openings.
Neighbouring towns
More we do in Trowbridge
Smoke vent rooflights (AOVs) in Trowbridge: questions
Can a smoke vent be used for normal ventilation?
Many dual-purpose units also open for daily ventilation, closing automatically in rain.
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 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 Trowbridge?
Send your postcode and, if you can, a photo of the roof and the room. We offer a survey date when we reply.
Do I need to be at home for the survey in Trowbridge?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
