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Expert Advice

Rated 4.8/5

Rated 4.5/5

10-20 year guarantees

Easy-Fit design

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Trickle Vents

Trickle Vents

These retrofit trickle vent kits can be added to our Master & Elite Bifolds providing background ventilation by letting a small amount of air through a routed slot in the door. This helps prevent condensation, mould growth and a build-up of pollutants inside the room, whilst the canopy fitted to the outside protects against bad weather.