Rodent Proofing & Pest Exclusion
in Salmon River, BC

The Salmon River area in eastern Langley Township is rural agricultural land with scattered residential development, centred around the Salmon River itself and the network of drainage ditches and creeks that manage water flow across the floodplain. Properties in this area are predominantly on larger rural lots, and the crawlspace challenges are shaped by the agricultural character of the land — rich, organic soils with high moisture-holding capacity, periodic flooding from the river system, and drainage infrastructure designed primarily for agricultural use.

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.