Rodent Proofing & Pest Exclusion
in Delta, BC

Delta is one of the most geographically varied municipalities in Metro Vancouver. The Ladner area sits on the Fraser River delta — some of the flattest, lowest-lying farmland-turned-residential land in the region, with water tables that are very close to grade through much of the year. Tsawwassen, by contrast, is built on a peninsula with sandy soils and adequate natural drainage, though its coastal exposure brings its own humidity challenges. North Delta occupies the hillside terrain rising toward the Burns Bog plateau, where clay-heavy soils on steeper slopes create surface drainage issues rather than high water table concerns.

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.