Rodent Control – What You Should Know
Why they appear, what attracts them, and when to take action.
Seeing signs of rodents at home is overwhelming, yet prevention is possible.
Where Rodents Come From
Seasonal behavior
As Ontario winters set in, rodents look for warm, sheltered places to nest.
Entry points
Mice can squeeze through openings as small as a dime; rats need only a gap the size of a quarter.
Shared environments
Urban density, shared garbage areas, and nearby construction can all increase rodent activity.
What You Can Do at Home
- Store dry food in airtight containers and clean up spills quickly.
- Seal cracks and gaps around doors, vents, and foundations.
- Check for droppings or gnaw marks as early warning signs.
- Reduce clutter in storage areas to eliminate hiding spots.
- Keep garbage bins sealed and emptied regularly.
What Attracts Them to Homes
- Food availability: Unsealed dry goods, crumbs, pet food, and open garbage.
- Cluttered storage: Boxes, fabric, and paper in basements, garages, or attics.
- Moisture: Leaky pipes, condensation, or damp laundry rooms.
Why Rodents Are a Concern
Property risks
Their constant gnawing can damage wiring, insulation, and furniture.
Hygiene issues
Droppings, urine, and fur can contaminate food and surfaces.
Rapid breeding
A small problem can quickly become a large infestation if not addressed.
Frequently Asked Questions
How small an opening can a mouse fit through?
As little as 6 mm — about the size of a dime.
Are rodents only a winter problem?
They’re year-round, but activity increases in fall and winter as they move indoors.
Do all rodents carry disease?
Not all, but droppings, urine, and hair can contaminate surfaces and food.
Can rodents climb?
Yes. Mice are excellent climbers and can reach cupboards, shelves, and attics.