Every fall in Gresham, the same thing happens: as temperatures drop and the rain sets in, rats and mice look for a warm, dry place to nest — and your home is an obvious target. The green corridors around Johnson Creek, the Springwater Trail, and the butte parks all harbor rodents that push toward houses as the weather turns.
When the migration happens
The heaviest indoor movement runs from early fall through winter. Cool, wet nights drive rodents to shelter, and Gresham’s older housing stock — with crawlspace vents, cedar rooflines, and utility gaps — gives them plenty of ways in.
How to keep them out
- Seal crawlspace and foundation vents with steel mesh or hardware cloth
- Close roofline and cedar gaps where roof rats climb in
- Add door sweeps to garage and exterior doors
- Keep firewood, clutter, and pet food away from the house
The most reliable protection is professional exclusion — finding and sealing every entry point before the animals arrive. If you saw rodents last winter, seal now; waiting gives them another season indoors. Call (619) 658-9179 for a free phone estimate.
