Rainier Valley Crawlspace Grading: Rat Behavior Indicators
Rainier Valley’s mix of older housing stock, dense vegetation, and Portland/Vancouver-style rainfall patterns creates conditions where crawlspace grading plays an outsized role in a home’s pest resilience. When soil and landscaping slope toward a foundation or when crawlspaces remain damp and accessible, they become inviting environments for rodents—especially Norway rats and roof rats, the two…
