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Underfloor & cavity wall vents

A range of underfloor, through wall and cavity wall ventilation products to prevent the build-up of moisture and condensation and provide protection against driving rain, birds, rodents and large insects.

Features & benefits

  • Airbricks and weep vents available in Terracota, Buff and Anthracite.
  • Driving and deluge rain resistant.
  • Injection moulded components.
  • Interconnectivity of the products enable a wide range of solutions to be realised.



Product Brochure


Fixing instruction


BIM Objects

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NBS Specifications

Have a question?

For any questions or queries about our product ranges and the technical support services we can offer, please contact us using the form below.

Glidevale Protect is a division of Building Product Design Ltd.

Other subsidiaries include ventilation systems specialist Passivent and Kingfisher Louvres, manufacturer of aluminium louvres systems.

Important Notice

Please be vigilant of fraud/cyber crime. If you receive an email from our parent company Building Product Design Ltd, please check that the email address from the sender ends in '' and any phone number given is 0161 905 5700.

If you receive any emails ending in '' or '', these are NOT legitimate, and you should contact us as soon as possible at

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