Ant Control & Extermination
Targeted ant treatments that destroy the colony — not just the ants you see. Lasting results for Toronto homes and businesses.
The Problem
The Ant Problem
Ants are the most common household pest in the GTA. While a few ants seem harmless, they can quickly become thousands as colonies grow and send out foraging trails. They contaminate food, invade kitchens and pantries, and some species — like carpenter ants — actually damage the wood structure of your home.
Store-bought sprays only kill the ants you see. The colony, hidden in walls, under floors, or outdoors, keeps producing replacements. To actually solve an ant problem, you have to eliminate the colony at its source.
The Causes
What Causes Ant Infestations
Ants enter homes searching for food and water. Sweets, grease, crumbs, and moisture are the main attractants. They trail along pheromone scent lines, which is why you see them marching in lines. Common entry points include cracks in foundations, gaps around windows and doors, and along pipes and wires.
Carpenter ants — common in the GTA — don't eat wood but excavate it to build nests, favouring moist or decaying wood around windows, doors, and roof areas. Pavement ants nest under slabs and enter at ground level. Pharaoh ants infest kitchens and bathrooms and are notoriously difficult to eliminate without professional baiting.
What Marsh Does
Identify the Species
Different ants need different treatments. We identify whether you're dealing with pavement ants, carpenter ants, pharaoh ants, or another species to choose the right approach.
Locate the Colony
We trace trails back to the nest — indoors or outdoors — because killing the colony is the only way to stop the problem for good.
Targeted Treatment
We use species-specific baits and treatments that worker ants carry back to the queen, eliminating the entire colony — not just the foragers.
Exclusion & Prevention
We seal entry points, remove attractants, and advise on moisture control to make your home unattractive to future colonies.
What to Expect
What You Can Expect
We respond within 1 hour and can often inspect same-day. Ant treatments typically show results within 3–10 days as bait works its way through the colony. You may see slightly more ant activity in the first few days as workers take the bait back to the nest — this is normal and means it's working.
We follow up to confirm the colony is eliminated and provide prevention tips to keep them from returning.
Pricing
Best Prices Guaranteed
We have the best prices — contact us for a free quote. Call (647) 330-5601 or fill out the form below and we'll get back to you fast.
When to Call
When You Should Call
Call if you see ant trails in your kitchen or bathroom, find ants in food areas, notice sawdust-like frass near wood (a sign of carpenter ants), or spot winged ants indoors (a sign of a mature colony). Don't waste money on sprays that only kill surface ants — the colony keeps growing.
Why Marsh
A local team you can trust.
Professional Service
We approach every job with proper inspection and identification before recommending treatment.
Available 7 Days a Week
Pest and wildlife problems don't wait for convenient timing — and we're available to help.
We Stand Behind Our Work
We do the job properly and follow up where follow-up is needed.
Upfront Pricing
Clear quotes with no surprise fees. You know what you're paying for before we start.
FAQ