Rodent Proofing & Pest Exclusion
in Port Coquitlam, BC
Port Coquitlam is a mid-sized city in the Tri-Cities area situated along the Pitt and Coquitlam rivers. Like its neighbours, it has a mix of older housing stock in the central areas built from the 1950s through the 1970s and newer development on the periphery. The proximity to both rivers means that lower-lying areas near Mary Hill and along the riverfront have seasonal water table concerns that make active sump systems important. The central residential areas around Downtown Port Coquitlam and along Shaughnessy Street are built on flatter ground where drainage relies heavily on storm infrastructure that dates from the original development of the area.
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.
Why Choose Us in Port Coquitlam?
- Experience with Port Coquitlam's specific soil and drainage conditions
- Custom-designed systems — not one-size-fits-all packages
- Fully licensed, insured, and WCB-covered technicians
- Written report with photos after every inspection
- Workmanship guarantee on all completed work
Request Service in Port Coquitlam
About Port Coquitlam — What We See Here
One pattern we see consistently in Port Coquitlam is the impact of mature tree root systems on perimeter drainage. Older residential streets are lined with large trees whose roots have found their way into original clay drain tiles installed during construction. Root intrusion blocks flow, causes tiles to offset at joints, and eventually results in backed-up drainage that directs water toward the foundation. When we assess crawlspaces in established PoCo neighbourhoods, we include a review of the condition of any visible exterior drainage and look for signs of root interference.
Port Coquitlam homeowners in the Mary Hill and Citadel areas — higher-elevation neighbourhoods with views across the valley — tend to have better natural drainage by gravity but can still face moisture issues from the clay-heavy soils retaining water at the surface and directing it toward the uphill side of foundations. We address this with improved grading and, where appropriate, exterior French drain systems along the high side of the lot.