How we approach smoke vent rooflights (AOVs) in Hammersmith
Our smoke vent rooflights (AOVs) service in Hammersmith 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.
Mansard and loft conversions are common across London, and roof windows are often set out alongside dormers on the rear slope. Typical uses for smoke vent rooflights (AOVs) include blocks of flats and commercial buildings with a smoke strategy.
We work across Greater London, including Hammersmith, and in neighbouring towns such as Shepherds Bush and Chiswick. Access, parking and how the glass reaches the roof are all checked at the survey.
Choices for your Hammersmith project
- Rain and wind sensors for daily vent use
- Glazed rooflight or louvred vent
- Electric (24 V) or pneumatic actuation
- Break-glass and smoke-detector triggers
- Control panel with battery backup
- Opens automatically on alarm signal
- Replacement of failed or obsolete units
What to check first
- Replacing a vent with a non-equivalent product can affect the fire strategy
- Smoke ventilation is designed to the building's fire strategy — we install to that design
Rules and responsibilities in Hammersmith
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.
Read the planning permission guide before you commit to a design.
Guide prices for Hammersmith
Prices below are shown including and excluding VAT. In Hammersmith, as elsewhere, making good inside and access equipment are the main variables.
| 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
- Get in touch. Use the form, WhatsApp or the guide-price tool with your Hammersmith address.
- Measure and check. A surveyor visits Hammersmith, measures and checks structure and access.
- Agree the quote. You approve the specification and price before anything is ordered.
- Installation day. Usually one day into a prepared opening, longer for new openings.
Neighbouring towns
More we do in Hammersmith
Smoke vent rooflights (AOVs) in Hammersmith: questions
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.
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.
Do I need to be at home for the survey in Hammersmith?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
Do you fit smoke vent rooflights (AOVs) in Hammersmith?
Yes. We survey and fit smoke vent rooflights (AOVs) in Hammersmith and across Greater London. Send your postcode and we will offer a survey date when we reply.
