Insect Proofing Products

Start by finding where insects are getting in. Fine mesh and vent covers suit air bricks and vents; sealants and gap fillers suit cracks around doors, windows, pipework and walls; brush strips and screens suit door and window openings. Match the product to the size and location of the gap rather than buying one type and hoping.

These are physical barriers and contain no active substance. Fit them as directed, and keep offcuts, fixings and sealant out of reach of children and pets while you work.

Correctly fitted, mesh, vent covers and brush strips last for years. It is still worth re-inspecting once a year, since buildings move, sealant degrades and new gaps open up over time.

Yes. All of our insect proofing products are designed for DIY installation and come with simple guidance - no specialist tools or trade experience needed. Take normal care with access equipment for anything above head height.

The commonly missed routes are air bricks and vents, gaps under external doors, the holes where pipes and cables pass through walls, gaps around window frames, and unscreened opening windows. Work round the outside of the building systematically rather than fixing the one gap you happened to notice.

Proofing stops new insects getting in; it does nothing about the ones already inside, and sealing a space with an active infestation in it just keeps them there. Clear what is present first with the appropriate treatment, confirm activity has stopped, then close the routes so it doesn't recur. For flying insects, screens are the single most useful thing you can fit.

You have almost certainly missed a route rather than fitted the wrong product. The ones people miss are above head height and below knee height: soffit and eaves gaps, the space where a pipe or cable passes through a wall, an unscreened trickle vent, and the gap under an external door once the threshold has worn. Put monitoring traps against the walls of the affected room for a few nights - where they catch tells you which side of the building to go back and look at.