How we approach smoke vent rooflights (AOVs) in Hertford
Smoke vent rooflights (AOVs) in Hertford means automatic smoke ventilators at the head of stairwells and atria. We cover the SG13 district and the rest of Hertfordshire, with a survey before any price is fixed.
Larger gardens in much of the South East mean deeper rear extensions, and deeper rooms need light from above rather than only from the doors. Typical uses for smoke vent rooflights (AOVs) include communal stairwells, corridors and atria.
Hertford is around 27 km from Watford, and we survey and fit throughout that part of Hertfordshire, including the SG13 district.
What you can choose
- Electric (24 V) or pneumatic actuation
- Break-glass and smoke-detector triggers
- Rain and wind sensors for daily vent use
- Glazed rooflight or louvred vent
- Service and test plans
- Servicing and testing available
- Manual override at the fire service access level
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
Building control and safety duties in Hertford
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. 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 Hertford
The ranges below are typical for straightforward jobs; your fixed price follows a survey of your roof.
| 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
- Tell us what you have. Send the SG13 postcode, a rough size and a couple of photos.
- Free site visit. For new installs we survey free, measure and confirm the roof detail.
- Agree the quote. You approve the specification and price before anything is ordered.
- Fit and make good. We fit, seal, test and finish the reveal, then hand over the paperwork.
Smoke vent rooflights (AOVs) near Hertford
Related work in Hertford
Common questions
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.
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 Hertford?
Yes. We survey and fit smoke vent rooflights (AOVs) in Hertford and across Hertfordshire. Send your postcode and we will offer a survey date when we reply.
How do I book a survey in Hertford?
Send your postcode and, if you can, a photo of the roof and the room. We offer a survey date when we reply.
