Pest Proofing Sydney

Pest proofing, also called exclusion, is sealing the gaps and openings that pests use to get into a building. It includes sealing pipe penetrations, covering vents with mesh, fitting door brush seals and weep hole guards, and closing gaps at rooflines and eaves. It works alongside treatment rather than replacing it.

Smaller than most people expect. Health Victoria says mice can squeeze into gaps as small as 8 mm, and many exclusion guides recommend sealing any gap over about 6 mm. Rats need a little more room, commonly quoted at around 12 mm. Young animals can use even smaller gaps.

Expanding foam on its own isn't a reliable rodent barrier, because rats and mice can chew through it. For rodent gaps we use steel wool or mesh combined with sealant, or metal cover plates. Foam can have a place for insects and draughts, but not as the only barrier.

Weep holes let moisture drain from and air circulate within brick cavity walls, so they should never be filled with mortar or sealant. Purpose-made weep hole guards keep them open while stopping mice, cockroaches and wasps from getting in. We match the guard to the brick and hole size.

Yes, but carefully. Possums are protected native animals in NSW, so we first make sure no possum is still inside the roof before any entry is closed. Removal and release are handled under NSW rules through our possum service, then the entry points are sealed.

Pest proofing is quoted after an inspection, because the price depends on how many entry points there are, their height and access, the materials needed and whether bird proofing or roof work is involved. You get a fixed written quote and a list of any repairs that need another trade.

Usually both, in the right order. Treating first reduces the pests already inside, and proofing stops more coming in. For rodents, sealing every entry while animals are still inside can trap them in the walls, so proofing is timed with the treatment.

You can handle simple jobs like fitting door seals, trimming branches, clearing gutters and sealing small visible gaps. Finding every active entry point, working at height and sealing rooflines safely is where professional help pays off, especially when pests keep returning.

Yes. We install mesh under solar panels, spikes and wire on ledges, and netting to close off roosting and nesting areas, most often for pigeons. Native birds are protected in NSW, so we identify the species before deciding on the approach.

Warranty terms for proofing work depend on the job and are confirmed in writing with your quote. Proofing can be affected by later building work, storm damage or new gaps pests create, so we recommend a check if activity returns.