What do smoke vent rooflights (AOVs) in Diss involve?
Our smoke vent rooflights (AOVs) service in Diss 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.
Coastal towns in the East of England see salty air, so we specify frame finishes and fixings with exposure in mind. In Diss, as anywhere, smoke vent rooflights (AOVs) are the usual choice for blocks of flats and commercial buildings with a smoke strategy.
Diss is around 31 km from Norwich, and we survey and fit throughout that part of Norfolk, including the IP22 district.
What you can choose
- Electric (24 V) or pneumatic actuation
- Service and test plans
- Break-glass and smoke-detector triggers
- Glazed rooflight or louvred vent
- Control panel with battery backup
- Manual override at the fire service access level
- Replacement of failed or obsolete units
Things we check at survey
- The product should be certified to BS EN 12101-2 as a natural smoke and heat exhaust ventilator
- Replacing a vent with a non-equivalent product can affect the fire strategy
Rules and responsibilities in Diss
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.
See our building regulations guide for U-values, glazing limits and self-certification.
Guide prices for Diss
These are typical supply-and-fit ranges. For an address in Diss, scaffold, a hoist for heavy glass, or a new structural opening can move the figure, which is why we survey first.
| 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
- Tell us what you have. Send the IP22 postcode, a rough size and a couple of photos.
- Survey. We measure the opening, check the roof build-up and agree the options.
- Fixed quote. Product, work and price in writing — nothing is ordered until you agree.
- Fitting and handover. We install, clean down and leave product and warranty documents.
Smoke vent rooflights (AOVs) near Diss
Related work in Diss
Questions about smoke vent rooflights (AOVs) in Diss
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.
How often should AOVs be tested?
Industry guidance recommends regular functional checks and at least annual servicing. Your fire risk assessment sets the regime.
Can a smoke vent be used for normal ventilation?
Many dual-purpose units also open for daily ventilation, closing automatically in rain.
Can you work alongside my builder in Diss?
Yes. On new extensions we fit once the opening and upstand are ready and coordinate dates with your builder.
How do I book a survey in Diss?
Send your postcode and, if you can, a photo of the roof and the room. We offer a survey date when we reply.
