Sterex Pest Control
Pavement ant burrow pushed up through a walkway seam beside a foundation
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Ant Control in Toronto and the GTA

Ant treatment in Brampton and the GTA is priced by species: pavement ants from $150 plus HST, Pharaoh ants $250, carpenter ants $350. Sterex confirms the species first, provides prep guidance, and uses interior, exterior, nest, or burrow treatment as needed. Scheduling depends on technician availability and can be immediate when one is free. Residential treatments carry a 3-month warranty across the GTA.

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Sterex treats active ant infestations with a detailed inspection, prep guidance, interior treatment where needed, exterior perimeter work, and direct nest or burrow targeting. We handle carpenter ants, pavement ants, Pharaoh ants, and recurring ant pressure across Toronto and the Greater Toronto Area.

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Thorough inspection

Prep required

Nest-focused work

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Send the basics and Sterex will call or text you to confirm service within two hours.

Trail and burrow signsThree-step treatment planPreparation checklistCommonly asked questions

Why detailed ant service matters

Ant treatment is not just spraying the ants you can see.

Visible ants are usually workers. The real problem may be an exterior burrow, a foundation gap, a damp wall void, a cabinet leak, a deck or stump nest, or a colony route that keeps feeding new activity into the home. That is why Sterex starts with inspection instead of treating every ant case the same way.

Carpenter ants need especially careful attention because repeated activity near a kitchen sink, dishwasher, bathroom, window, roofline, or damp wood can point to a moisture condition. Pavement ants often need exterior burrow work. Pharaoh ants need careful product selection because poor treatment can spread activity.

Moisture Clues

Carpenter ant activity in kitchens or bathrooms often makes us check under sinks, around dishwashers, and near damp cabinet or wall areas.

Exterior Source

Many ant issues are fed from outside. The technician looks for burrows, trails, soil mounds, wood decay, and foundation entry points.

Prep Access

Empty cabinets and exposed wall edges allow treatment to reach the route ants are using instead of only treating the open counter.

Species Matters

Carpenter, pavement, and Pharaoh ants behave differently. The product and placement should match the ant, not just the room.

Ant identification

The ant species changes the treatment plan.

Sterex looks at size, colour, trail pattern, room, moisture, exterior activity, and nesting clues before deciding how to treat.

Carpenter ant identification for GTA ant control

Carpenter Ants

Large black ants that often point to moisture, softened wood, roofline gaps, deck areas, window frames, or sink and cabinet leaks. They excavate wood to make galleries instead of eating the wood itself.

  • Kitchen or bathroom activity can be tied to plumbing moisture under sinks or behind cabinets.
  • Exterior nests may sit in stumps, landscaping, deck boards, wall voids, or damp structural wood.
  • Control usually needs inspection, prep, interior placement, exterior perimeter work, and direct nest treatment.
Read the full guide
Pavement ant control around foundations and driveways in the GTA

Pavement Ants

Small dark ants that commonly trail from cracks in driveways, patios, sidewalks, garage slabs, foundation seams, and soil edges into kitchens or lower-level rooms.

  • Technicians look for trails, soil mounds, slab cracks, foundation gaps, and the main exterior colony route.
  • Treatment often combines exterior perimeter spray with detailed application around the active burrow.
  • Interior service is targeted to entry zones, baseboards, cracks, and cabinet areas where activity is present.
Pharaoh ant identification for indoor ant infestations

Pharaoh Ants

Tiny yellow to light-brown ants that can spread through heated indoor spaces. Pharaoh ants require careful identification because the wrong spray can make activity split into new colonies.

  • Often found around kitchens, bathrooms, medicine areas, laundry rooms, and warm wall voids.
  • Baiting and species-specific planning matter more than heavy general spraying.
  • Multi-unit or commercial cases may need access planning and monitoring over time.

Infestation signs

Signs you may need ant treatment.

Ants can look minor at first because only part of the colony is visible. Repeated trails, kitchen activity, large black ants, or exterior burrows are signs that the source needs to be located and treated properly.

  • Ant trails along counters, baseboards, window frames, patio doors, garage edges, or foundation cracks.
  • Large black ants indoors, especially near kitchens, bathrooms, sinks, dishwashers, wet wood, or wall voids.
  • Sawdust-like frass, faint rustling in walls, damaged damp wood, or repeated carpenter ant sightings at night.
  • Soil mounds or active burrows around patios, driveways, walkway cracks, deck posts, garden beds, or foundation edges.
  • Activity that returns after store-bought sprays because the main colony, exterior burrow, or moisture source was not treated.
Pavement ant identification for Toronto ant control

Inspection detail

We look for the trail source, not only the ants on the counter.

Sterex treatment process

Our ant service is a three-step treatment plan.

On-demand ant treatment is for active infestations where ants are already entering the home, trailing through kitchens, or nesting around the property. Sterex pairs interior precision with exterior perimeter and nest-focused treatment.

Product placement matters

Seclira may be used inside where label-appropriate. Dragnet may be used outside where suitable. The technician decides placement based on species, surface, access, moisture, trails, and exterior nesting pressure.

Step 1

Inspection, species ID, and prep confirmation

Sterex starts by confirming the ant species, active trails, entry points, moisture clues, cabinet access, and exterior nesting pressure. For carpenter ants in kitchens or bathrooms, prep matters because leaks and cabinet voids often hide the real activity.

Step 2

Interior treatment with access to key areas

When interior service is needed, Sterex uses Seclira where label-appropriate around cracks, baseboards, cabinet voids, wall edges, and active routes. Customers empty cabinets where service is required and expose the treatment zones before the technician arrives.

Step 3

Exterior perimeter and direct nest work

The technician treats the exterior perimeter and focuses on the burrow, nest, or strongest trail source when found. Dragnet may be used outside where suitable. Heavy burrow or void activity may need a more detailed targeted application or fumigation-style nest treatment when appropriate.

Ant treatment prep

Prep gives the technician access to the real ant routes.

Ant service is more effective when cabinets, baseboards, wall edges, and exterior nesting areas are accessible before the technician arrives.

Kitchen & Cabinet Prep

  • Empty cabinets, drawers, and under-sink areas where ants are active or where the technician needs access.
  • Remove food, dishes, small appliances, cleaning products, pet bowls, and loose items from service zones.
  • Report leaks, damp cabinet bottoms, dishwasher moisture, or soft wood so the technician can inspect the source.

Access Around Walls

  • Expose baseboards and wall edges where ants are trailing.
  • Move stored items and light furniture back from treatment areas so the technician can work safely.
  • Keep roughly two feet of access where perimeter or interior wall-edge treatment is needed.

Exterior & Yard Prep

  • Clear items against the foundation, patio edge, garage wall, deck posts, and active exterior trails.
  • Trim or move vegetation touching the structure when possible.
  • Point out burrows, ant hills, soil mounds, rotten wood, stumps, or areas where ants are entering.

After Treatment

  • Follow the technician's re-entry instructions before using treated areas normally.
  • Do not wash treated cracks, baseboards, or exterior zones immediately after service.
  • Avoid store-bought sprays over professional treatment areas because they can disrupt the plan.

Carpenter ant prep sheet

Use the prep guide before service so cabinets, baseboards, exterior access points, and active areas are ready for inspection and treatment.

Download prep sheet

Related resources

Useful next steps for ant control and prevention.

Active ant problems need inspection and treatment. Seasonal prevention plans help reduce exterior pressure before trails start moving indoors.

Carpenter Ant GuidePrep SheetsSummer Ant ProtectionResidential ServicesService AreasCockroach ControlPest Library

Residential and exterior service

Ant control for GTA properties.

Sterex treats ant problems in homes, condos, basements, kitchens, rental units, commercial properties, patios, garages, decks, foundation edges, and landscaped exterior areas.

Homes & Condos

We focus on kitchens, bathrooms, baseboards, windows, patio doors, under-sink areas, and the routes ants use to enter living spaces.

Exterior Burrows

Pavement ant and exterior carpenter ant pressure often starts outside. Foundation edges, slab cracks, garden beds, and deck posts get careful attention.

Moisture & Wood Clues

Carpenter ant service includes looking for damp wood, leaks, soft cabinet bottoms, rotting exterior wood, and structural conditions that support activity.

Transparent pricing

Ant treatment from $150 + HST

Pavement ants

From $150 + HST

Indoor bait, one floor. Interior + exterior spray is $250.

Pharaoh ants

$250 + HST

Species confirmation, then a targeted baiting plan

Carpenter ants

$350 + HST

Full spray treatment with nest targeting

Rated 5.0 on Google. Call 289-210-7378 or book online for a confirmed quote.

Ant treatment FAQ

Common ant control questions in the Greater Toronto Area

Prep gives the technician access to the cracks, cabinet areas, under-sink spaces, baseboards, and exterior entry points where ants are moving. For carpenter ants in a kitchen or bathroom, prep is especially important because moisture under sinks, behind dishwashers, or inside cabinet voids can support nesting and trailing activity. If cabinets stay full, treatment cannot reach the areas that matter.

Sterex uses professional products according to label directions and site conditions. For many ant services, Seclira may be used inside where appropriate, and Dragnet may be used outside for exterior perimeter or nest-focused work where suitable. The technician chooses placement based on the ant species, activity level, entry points, surface type, and safety requirements.

Not always, but carpenter ants are strongly associated with moisture-damaged or softened wood. Kitchen activity can point to leaking plumbing, dishwasher moisture, damp cabinet bottoms, window leaks, roofline issues, deck contact, or exterior wood decay. Sterex inspects for these conditions because treating ants without correcting moisture can make the problem more likely to return.

Some light exterior ant issues can be controlled with one detailed treatment when the source is found and access is good. Heavy carpenter ant activity, multiple nests, Pharaoh ants, or recurring pavement ant pressure may need follow-up, monitoring, repair, or seasonal protection. Sterex explains this based on what the technician finds on site.

On-demand treatment is for active infestations where ants are already trailing, entering the home, or nesting around the property. Summer Ant Protection is a seasonal plan with exterior barrier sprays timed for peak ant pressure. If there is already a serious interior infestation, a technician visit is usually the right starting point.

Pavement ants are small dark brown ants that typically trail from exterior cracks, driveways, and foundation seams into kitchens or lower-level areas. They nest outdoors and treatments usually combine exterior perimeter spray with direct burrow targeting. Pharaoh ants are tiny, pale yellow to light brown ants that nest indoors in heated spaces. They are significantly harder to control because standard spray applications can cause the colony to scatter into satellite colonies — a process called budding. Pharaoh ants require careful species confirmation and baiting strategies rather than general perimeter spray.

Ant treatment at Sterex is priced by species. Pavement ants start at $150 + HST for indoor bait on one floor, or $250 for an interior and exterior spray program. Pharaoh ant treatment is $250 + HST and needs species confirmation first, because a general spray can scatter the colony into satellite nests. Carpenter ant treatment is $350 + HST for a full spray with nest targeting. Property size, the amount of exterior work, and follow-up needs can change the final scope, which Sterex confirms before the visit.

Shop protection plans

Seasonal protection with clear online pricing.

Summer Ant Protection is for seasonal exterior prevention. HomeGuard covers year-round pest pressure. If ants are already active inside, book an on-demand technician visit so Sterex can inspect, confirm prep, and treat the active source.

Summer ant protection package for Toronto homes — exterior barrier treatment
Seasonal

2-Spray Bundle

Summer Ant Protection

$499

One-time · Exterior barrier sprays

Two exterior barrier sprays timed to peak GTA ant season. Covers foundation, garden perimeter, and all entry zones.

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Fall and winter mice protection package for Toronto and GTA homes
Seasonal

5-Month Bundle

Fall & Winter Mice Protection

$299

One-time · plus HST · Includes materials

A full entry point inspection with minor gaps sealed as we find them, interior and exterior bait stations, and two monitored refill visits — October through February. Full exclusion work is quoted separately.

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Learn More
Sterex HomeGuard year-round pest protection plan for Toronto and GTA homeowners
Most Popular

Year-Round

Sterex HomeGuard Plan

$799

Per year · 4 seasonal visits

Spring, summer, fall, and winter visits. Over $1,200 in services. Priority callback and 15–17% off additional treatments.

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Not sure if you need a plan or a one-time treatment?

Use a protection plan for seasonal prevention. Book a technician visit when there is active pest activity, visible trails, bites, droppings, nesting, or a recurring issue.

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Where we work

Ant extermination across Toronto and the GTA.

Sterex helps customers with carpenter ants, pavement ants, Pharaoh ants, kitchen ant trails, exterior burrows, foundation entry points, and recurring summer ant pressure across Toronto, Brampton, Mississauga, Scarborough, Etobicoke, Vaughan, North York, Markham, Richmond Hill, Milton, Oakville, and nearby GTA areas.

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Brampton
Mississauga
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Etobicoke
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Markham
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Greater Toronto Area

On-demand ant treatment

Stop ant trails before the colony keeps spreading.

Book Sterex for active ant service across Toronto and the GTA. We will confirm the species, prep, access, exterior source, and treatment scope before service.

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Book Ant Treatment With Sterex

Rated 5.0 on Google. Get detailed ant service with inspection, prep guidance, interior treatment where needed, exterior perimeter work, and direct nest targeting across Toronto and the GTA.

(289) 210-7378
Fast Response Licensed Pro GTA Wide

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