Smoke vent rooflights (AOVs) for Harpenden: the essentials
Smoke vent rooflights (AOVs) in Harpenden means automatic smoke ventilators at the head of stairwells and atria. We cover the AL5 district and the rest of Hertfordshire, with a survey before any price is fixed.
Orangery-style extensions with lanterns are popular across the South East, and solar-control glass makes a big difference on south-facing gardens. Typical uses for smoke vent rooflights (AOVs) include communal stairwells, corridors and atria.
We work across Hertfordshire, including Harpenden, and in neighbouring towns such as St Albans and Luton. Access, parking and how the glass reaches the roof are all checked at the survey.
Options we can specify in Harpenden
- Control panel with battery backup
- Rain and wind sensors for daily vent use
- Electric (24 V) or pneumatic actuation
- Glazed rooflight or louvred vent
- Service and test plans
- Also usable for day-to-day ventilation
- Replacement of failed or obsolete units
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 Harpenden
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.
What do smoke vent rooflights (AOVs) cost in Harpenden?
Guide prices for smoke vent rooflights (AOVs) in Harpenden 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
- Get in touch. Use the form, WhatsApp or the guide-price tool with your Harpenden address.
- Measure and check. A surveyor visits Harpenden, measures and checks structure and access.
- 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 Harpenden
Related work in Harpenden
Smoke vent rooflights (AOVs) in Harpenden: questions
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.
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 you work alongside my builder in Harpenden?
Yes. On new extensions we fit once the opening and upstand are ready and coordinate dates with your builder.
Do you fit smoke vent rooflights (AOVs) in Harpenden?
Yes. We survey and fit smoke vent rooflights (AOVs) in Harpenden and across Hertfordshire. Send your postcode and we will offer a survey date when we reply.
