Smoke vent rooflights (AOVs) for Caernarfon: the essentials
For Caernarfon homes and buildings we offer smoke vent rooflights (AOVs): automatic smoke ventilators at the head of stairwells and atria. We measure first, specify to the opening and confirm any planning or building-control points before quoting.
Chapels, barns and farm buildings converted across Wales often need bespoke or conservation-style glass. Think of smoke vent rooflights (AOVs) for communal stairwells, corridors and atria.
From Caernarfon to Llangefni, Bangor, Gwynedd and Porthmadog, the same survey-first process applies: measure, specify, fix the price, then fit.
Choices for your Caernarfon project
- Rain and wind sensors for daily vent use
- Service and test plans
- Electric (24 V) or pneumatic actuation
- Glazed rooflight or louvred vent
- Control panel with battery backup
- Also usable for day-to-day ventilation
- Manual override at the fire service access level
Before you order: points to check
- Smoke ventilation is designed to the building's fire strategy — we install to that design
- Replacing a vent with a non-equivalent product can affect the fire strategy
Rules and responsibilities in Caernarfon
Smoke vents are life-safety equipment: in Wales the responsible person must keep them maintained under the Regulatory Reform (Fire Safety) Order 2005 (as it applies in Wales). We supply manufacturer-certified units and arrange installation, commissioning and servicing through specialist smoke-control engineers.
For non-domestic buildings in Wales, Approved Document L sets limiting U-values for rooflights and roof ventilators; we supply the manufacturer's data for the building control submission. Fragile-roof safety and access are planned before work starts.
Read the planning permission guide before you commit to a design.
Guide prices for Caernarfon
These are typical supply-and-fit ranges. For an address in Caernarfon, 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 |
From enquiry to finished job
- 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.
Neighbouring towns
More we do in Caernarfon
Questions about smoke vent rooflights (AOVs) in Caernarfon
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 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 Caernarfon?
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 Caernarfon?
Yes. We survey and fit smoke vent rooflights (AOVs) in Caernarfon and across Gwynedd. Send your postcode and we will offer a survey date when we reply.
