Rodent Proofing & Pest Exclusion
in Mission, BC

Mission sits on the north bank of the Fraser River directly opposite Abbotsford, with the older parts of the community perched on the hillside above the river and newer development extending north up the Dewdney Trunk Road corridor. The hillside setting gives many Mission homes good natural drainage by gravity — a significant advantage compared to the flat bottomland communities — but the steep terrain creates its own challenges, including lateral water pressure against uphill foundation walls and erosion that can undercut perimeter drainage.

Rodents find crawlspaces attractive for the same reasons moisture does well there: it's dark, protected, relatively warm, and — in homes without proper exclusion — easy to get into. Rats (particularly Norway rats, common throughout Surrey and the Fraser Valley) and house mice can squeeze through gaps as small as a quarter-inch. They enter through uncapped foundation vents, gaps around utility penetrations, deteriorated sill plate joints, and even through the condenser lines of HVAC systems if protective screens are missing or corroded.

Our rodent-proofing process starts with a perimeter audit: we walk the exterior of the foundation looking for every possible entry point, then we move inside the crawlspace to identify any gaps that weren't visible from outside. Foundation vents are fitted with heavy-gauge galvanized steel mesh or replaced with sealed covers. Gaps around plumbing and electrical penetrations are packed with stainless steel wool and sealed with caulk or foam. Damaged sill plates are repaired. If the foundation vent openings are large or irregularly shaped, we use pre-formed steel exclusion panels rather than flexible mesh, which rodents can push past over time.