Frequently Asked Questions

Needing An Answer? Check out our most asked questions below...

The air brick covers prevent a whole range of pests from entering buildings but are primarily designed towards rodents.

No, the product is simple to install and can be secured in place by either adhesive or 5.5mm screws. Please see our Installation guide for more information

Simply locate all air bricks/vents around the property and ensure you have the correct size Preventavent to cover the entire vent. Then choose whether you would like to secure the product with screws or adhesive.

A rat can fit through a 20mm gap whereas mice can fit through a gap as small as 6mm.

Our Preventavent mesh has an aperture of 1.98mm.

We are proud to manufacture our products at our site in Hereford, England, for the following reasons:

  • We want to support local economy and sustain further UK employment.
  • We believe we can produce better product quality and provide a faster turnaround for our customers.
  • Lower carbon footprint than if we were to export
  • Ability to provide a ‘no minimum order quantity’.

2-3 working days. We use DPD shipping and pack your order by hand to ensure everything is correct. Want something sooner? Get in contact to see if we can help.

We are happy to refund your purchased items providing they are faulty or damaged on arrival with you. Please contact us on with your date of purchase and details of the faulty items and we will be in touch to arrange a replacement to be sent out to you.

Please contact our team on for more information on buying our products in bulk.