What do smoke vent rooflights (AOVs) in Chester involve?
For Chester 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.
The North West gets more rain than most of England, so upstand height, membrane detailing and rain sensors on opening units are not optional extras. Typical uses for smoke vent rooflights (AOVs) include blocks of flats and commercial buildings with a smoke strategy.
From Chester to Ellesmere Port, Halewood and Bebington, the same survey-first process applies: measure, specify, fix the price, then fit.
Choices for your Chester project
- Electric (24 V) or pneumatic actuation
- Rain and wind sensors for daily vent use
- Glazed rooflight or louvred vent
- Service and test plans
- Control panel with battery backup
- Also usable for day-to-day ventilation
- Opens automatically on alarm signal
Before you order: points to check
- 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
- Replacing a vent with a non-equivalent product can affect the fire strategy
Regulations for smoke vent rooflights (AOVs) in Chester
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.
Our planning guide covers each nation in more detail.
What do smoke vent rooflights (AOVs) cost in Chester?
These are typical supply-and-fit ranges. For an address in Chester, 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 |
What happens next
- 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.
- Fit and make good. We fit, seal, test and finish the reveal, then hand over the paperwork.
Smoke vent rooflights (AOVs) near Chester
Other services in Chester
Common questions
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.
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.
How often should AOVs be tested?
Industry guidance recommends regular functional checks and at least annual servicing. Your fire risk assessment sets the regime.
How do I book a survey in Chester?
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 Chester?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
