Hamilton’s older housing stock, especially in areas like the lower city and East Hamilton, creates ideal conditions for mice, cockroaches, and bed bugs, due to aging infrastructure and shared walls.

With its proximity to water (Lake Ontario) and abundant green spaces, Hamilton is a hotspot for ants, spiders, and wasps, particularly in neighborhoods like Stoney Creek, Ancaster, and the Mountain.

The humid summers and damp basements common in Hamilton homes make it easy for silverfish and earwigs to thrive—especially in older homes without modern ventilation.

Hamilton’s booming construction and renovation in areas like Westdale and Downtown often stir up pest activity, leading to more infestations in newly occupied or remodeled homes.

Pest activity spikes in Hamilton during early spring and late fall, as rodents and insects seek warmth indoors—making year-round prevention key for local homeowners.