Ant Extermination
Baiting and exterior barrier work to eliminate ant colonies at the source.
Foundation, patio, and wall-void treatments for lasting control.
- Avoid spraying over-the-counter products on trails before baiting.
- Trim vegetation touching siding and gutters.
Signs of a ant problem
Catch these early and call us before the problem spreads.
Trails of ants along counters, baseboards, or the foundation
Small piles of sawdust near wood, a sign of carpenter ants
Winged ants appearing indoors in spring
Why choose 401 Pest Control for Ant Extermination?
Licensed pest professionals using low-odour products, clear prep guides, and thoughtful follow-ups.
Qualified + Local
Licensed exterminators and wildlife experts working across Southwestern Ontario with unmarked vehicles available.
Safe For Families
Integrated pest management with low-odour, pet-conscious products and prep checklists that keep you in the loop.
Same-Week Service
Fast dispatch along the 401 corridor, clear ETAs, and tidy work that respects your home or business.
Proof + Prevention
Photos, exclusions, and follow-up scheduling so issues stay gone—not just knocked down once.
How we treat ant extermination
Each visit includes a structured plan aimed at elimination and prevention—no guesswork.
Inspect & Identify
We verify the pest, map entry points, and look for conditions that let infestations grow.
Treat With Purpose
Targeted applications, sealing, and trapping plans designed for your structure and pest type.
Prevent & Monitor
Follow-ups, monitoring devices, and practical prevention tips keep you ahead of future activity.
Focus areas
Foundation, patio, and wall-void treatments for lasting control.
- Avoid spraying over-the-counter products on trails before baiting.
- Trim vegetation touching siding and gutters.
Where we handle Ant Extermination
Get fast support across Southwestern Ontario. Choose your city for a local plan.
Ant Extermination FAQs
Common questions about ant extermination in Southwestern Ontario.
Why shouldn't I spray ants myself?
Store sprays scatter the colony and can make it split. We bait so workers carry product back to the queen.
Do you treat carpenter ants?
Yes. These damage wood, so we locate the nest and treat the galleries directly.
How long until the ants are gone?
Baiting usually clears a colony within a couple of weeks; large carpenter-ant nests may need a follow-up.
Ant Extermination with a local pro
Clear prep lists, on-time arrivals, and follow-up reminders on every job.