How we approach smoke vent rooflights (AOVs) in Dulwich
Our smoke vent rooflights (AOVs) service in Dulwich 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. Smoke vent rooflights (AOVs) suit blocks of flats and commercial buildings with a smoke strategy.
Dulwich sits about 2 km from Brixton and 3 km from Peckham, and we cover the whole SE21 postcode district and the roads in between.
Options we can specify in Dulwich
- Glazed rooflight or louvred vent
- Control panel with battery backup
- Rain and wind sensors for daily vent use
- Electric (24 V) or pneumatic actuation
- Break-glass and smoke-detector triggers
- Servicing and testing available
- Also usable for day-to-day ventilation
Things we check at survey
- 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
Regulations for smoke vent rooflights (AOVs) in Dulwich
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.
What do smoke vent rooflights (AOVs) cost in Dulwich?
Guide prices for smoke vent rooflights (AOVs) in Dulwich 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 |
How the job runs
- Tell us what you have. Send the SE21 postcode, a rough size and a couple of photos.
- Free site visit. For new installs we survey free, measure and confirm the roof detail.
- Written price. You receive a fixed price listing the unit, the work and the lead time.
- Fitting and handover. We install, clean down and leave product and warranty documents.
Neighbouring towns
Other services in Dulwich
Common questions
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.
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.
Do you fit smoke vent rooflights (AOVs) in Dulwich?
Yes. We survey and fit smoke vent rooflights (AOVs) in Dulwich and across Greater London. Send your postcode and we will offer a survey date when we reply.
How do I book a survey in Dulwich?
Send your postcode and, if you can, a photo of the roof and the room. We offer a survey date when we reply.
