Smoke vent rooflights (AOVs) in Hitchin: what is involved?
Smoke vent rooflights (AOVs) in Hitchin means automatic smoke ventilators at the head of stairwells and atria. We cover the SG4 district and the rest of Hertfordshire, with a survey before any price is fixed.
Period cottages and conservation-area streets are common in the South East, so slim conservation rooflights are often the right choice. Typical uses for smoke vent rooflights (AOVs) include blocks of flats and commercial buildings with a smoke strategy.
We work across Hertfordshire, including Hitchin, and in neighbouring towns such as Letchworth Garden City and Stevenage. Access, parking and how the glass reaches the roof are all checked at the survey.
What you can choose
- Glazed rooflight or louvred vent
- Electric (24 V) or pneumatic actuation
- Break-glass and smoke-detector triggers
- Control panel with battery backup
- Service and test plans
- Manual override at the fire service access level
- Also usable for day-to-day ventilation
What to check first
- The product should be certified to BS EN 12101-2 as a natural smoke and heat exhaust ventilator
- Smoke ventilation is designed to the building's fire strategy — we install to that design
Regulations for smoke vent rooflights (AOVs) in Hitchin
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. Fire classification of rooflight materials near boundaries is checked at specification.
Read the planning permission guide before you commit to a design.
Smoke vent rooflights (AOVs) prices in Hitchin
Guide prices for smoke vent rooflights (AOVs) in Hitchin 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 |
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.
- Written price. You receive a fixed price listing the unit, the work and the lead time.
- Installation day. Usually one day into a prepared opening, longer for new openings.
Neighbouring towns
More we do in Hitchin
Questions about smoke vent rooflights (AOVs) in Hitchin
How often should AOVs be tested?
Industry guidance recommends regular functional checks and at least annual servicing. Your fire risk assessment sets the regime.
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 a smoke vent be used for normal ventilation?
Many dual-purpose units also open for daily ventilation, closing automatically in rain.
Do you fit smoke vent rooflights (AOVs) in Hitchin?
Yes. We survey and fit smoke vent rooflights (AOVs) in Hitchin and across Hertfordshire. Send your postcode and we will offer a survey date when we reply.
Can you work alongside my builder in Hitchin?
Yes. On new extensions we fit once the opening and upstand are ready and coordinate dates with your builder.
