PEST CONTROL
Ant Control in Toronto & the GTA
Surface sprays only push ants to new areas. Our IPM approach targets the colony at its source using bait systems and barrier treatments, providing lasting control for carpenter ants, pavement ants, and more.
OUR APPROACH
How We Eliminate Ants
Identify the Species
Carpenter, pavement and odorous house ants need different baits and different placements. We identify which you have before treating — the wrong bait is simply ignored, which is why some treatments appear to do nothing at all.
Bait the Active Trail
Bait is placed directly on the working foraging trail so it gets carried back and shared through the colony, including with the queen. That is what eliminates a nest rather than reducing the ants you happen to see.
Barrier and Entry Work
A perimeter application plus advice on the moisture and entry conditions drawing them in — for carpenter ants especially, the wood they are nesting in is usually wet for a reason worth finding.
How to Identify Ants
Carpenter ants are large (6–12mm) and solid black; pavement ants are smaller and nest under sidewalks and slabs; odorous house ants are tiny and release a coconut-like smell when crushed. A visible trail of ants moving to and from a consistent point usually indicates a nearby colony.
Seasonal Behaviour in Ontario
Most Ontario ant species become active once temperatures consistently exceed 10°C in spring and remain active through fall. Colonies forage along scent trails, and a single ant indoors is often a scout from a larger outdoor or wall-void colony.
DIY or Call a Professional?
A few foraging ants can sometimes be managed by removing food sources and sealing entry points. A visible trail, sawdust-like frass (a sign of carpenter ants), or ants reappearing after cleaning point to an established colony that surface sprays won't reach — bait-based colony elimination generally requires a professional assessment.
WHY CHOOSE US
Why Ontario Homeowners Choose Sting Out
No Binding Contracts
Cancel anytime. No lock-ins, no pressure. We earn your continued business through results.
Eco-Friendly IPM
Science-based Integrated Pest Management solutions safe for kids, pets, and the environment.
Mosquito + Tick Specialists
Most Ontario pest companies don't offer this. We do — with seasonal programs that actually work.
Satisfaction Guarantee
Pests return within the guarantee window? So do we. Free re-treatment, no questions asked.
COMMON QUESTIONS
Ant Control — Questions We Get
Why do ants come back a week after I spray them?
Because surface spray kills foragers and leaves the colony intact. Worse, some species respond to being sprayed by budding — splitting into satellite nests — so you can end up with more trails than you started with. Bait that gets carried back to the nest is what actually resolves it.
How do I know if they are carpenter ants?
Size and frass. Carpenter ants are large, 6 to 12 millimetres, and solid black. They do not eat wood, they excavate galleries in it, so the telling sign is sawdust-like frass beneath a hidden gallery rather than visible damage. They also strongly favour wood already softened by moisture.
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SERVICE AREAS
Ant Control Across the GTA
We treat ants in homes and businesses throughout Toronto and Southern Ontario.