How we approach smoke vent rooflights (AOVs) in Litherland
Thinking about smoke vent rooflights (AOVs) in Litherland? 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.
Rear kitchen extensions on North West semis often have small domes from decades ago that leak or have yellowed. Think of smoke vent rooflights (AOVs) for communal stairwells, corridors and atria.
From Litherland to Bootle, Maghull and Liverpool, the same survey-first process applies: measure, specify, fix the price, then fit.
Specification options
- Electric (24 V) or pneumatic actuation
- Control panel with battery backup
- Glazed rooflight or louvred vent
- Rain and wind sensors for daily vent use
- Service and test plans
- Manual override at the fire service access level
- Glazed units bring daylight to stairwells
Before you order: points to check
- Replacing a vent with a non-equivalent product can affect the fire strategy
- The product should be certified to BS EN 12101-2 as a natural smoke and heat exhaust ventilator
Rules and responsibilities in Litherland
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. Fragile-roof safety and access are planned before work starts.
See our building regulations guide for U-values, glazing limits and self-certification.
Smoke vent rooflights (AOVs) prices in Litherland
Guide prices for smoke vent rooflights (AOVs) in Litherland are the same as anywhere we work — what changes the price is the job: access, structure, scaffold and finishing.
| 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
- 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.
- Agree the quote. You approve the specification and price before anything is ordered.
- Fitting and handover. We install, clean down and leave product and warranty documents.
Smoke vent rooflights (AOVs) near Litherland
More we do in Litherland
Smoke vent rooflights (AOVs) in Litherland: 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.
Can a smoke vent be used for normal ventilation?
Many dual-purpose units also open for daily ventilation, closing automatically in rain.
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 Litherland?
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 Litherland?
Yes. We survey and fit smoke vent rooflights (AOVs) in Litherland and across Merseyside. Send your postcode and we will offer a survey date when we reply.
