Steamy kitchen or bathroom, and no extractor fan? A rotary window vent (or window ventilator) fits through a round hole in the glass and lets moist air out. We stock Simon A-Matic window ventilators: the A-Matic 106 rotary fan, a double glazing (DGS) version with a Stormguard seal, and a static ventilator.
Rotary vents are glass mounted: they need a suitably sized hole in the pane. Double glazed units have to be made with the hole in place.
A rotary fan turns in the airflow to help move air. A static ventilator is a fixed grille with no moving parts.
DGS versions are made to fit through a double glazed sealed unit. Check which suits your glass.
Check the hole size on the product listing against your existing hole, or the hole your glazier will cut.
They are used in kitchens, bathrooms, utility rooms and outbuildings where extra ventilation helps with steam and condensation, especially where an electric extractor fan isn't practical.
Most vents fit with an inside and outside part clamped together through the glass. Unscrew the old vent, clean the glass around the hole, and fit the new vent with its seals so it clamps evenly without straining the glass.
Only if the glass has a hole for it. Toughened and double glazed glass can't be cut after it is made, so a new pane or unit would be needed.
A window ventilator fits through the glass. A trickle vent fits to the window frame.
Browse all window vents: trickle vents and rotary vents and window ventilators.
Not sure which vent you need? Send us a photo of your existing vent and the glass, and we'll help you choose.
Send us a photo to identify your partMonday to Friday, 8:30–12:30 and 13:00–15:30
