Last reviewed by Sterex Pest Control,
Sterex treats cockroach activity in homes, condos, apartments, restaurants, and commercial kitchens across Toronto and the Greater Toronto Area. Our service is built for hidden roach harbourage: targeted residual treatment, prep guidance, and follow-up planning when activity is severe.
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Why quick action matters
Cockroaches survive by staying hidden. The ones you see are usually scouts, displaced adults, or roaches forced into the open by crowding, cleaning, renovations, neighbouring pressure, or lack of food and water. In a GTA kitchen or condo, the real population may be tucked behind the fridge motor, under the sink, inside cabinet seams, behind baseboards, or inside wall and plumbing voids.
German cockroaches are especially serious because the life cycle keeps feeding the infestation. Egg capsules can contain dozens of eggs, newly hatched nymphs stay hidden in the same cracks as adults, and females can rebuild activity quickly if treatments do not reach harbourage zones. That is why Sterex focuses on access, preparation, residual protection, Actisol application, dusting, and follow-up planning for severe activity.
Eggs, nymphs, and adults can exist at the same time. A treatment plan must account for what is visible now and what can hatch after service.
Roaches do not live in the middle of the floor. They hide in the tight, warm, damp spaces where food residue and moisture are nearby.
Cockroaches can contaminate food surfaces, and their droppings and shed skins are associated with allergy and asthma concerns.
Apartments, condos, plazas, and older homes can have shared walls, plumbing chases, and service routes that keep pressure on a unit.
Cockroach identification
Correct identification matters because German, American, and Oriental cockroaches behave differently. Sterex matches the treatment route to the species, building type, moisture conditions, and visible activity.
The most common indoor cockroach in GTA kitchens, condos, apartments, restaurants, and shared housing. German cockroaches stay close to food, moisture, heat, and tight cracks around appliances.
Large reddish-brown cockroaches usually tied to damp structural areas, drains, sewers, boiler rooms, basements, and older commercial properties.
Dark, shiny cockroaches sometimes called water bugs. They prefer cool, damp spaces and are commonly associated with basements, crawl spaces, floor drains, and exterior entry points.
Sterex treatment process
A serious cockroach treatment cannot be a quick surface spray. Sterex combines three professional methods so the service reaches active trails, protected cracks, deep voids, and long-term harbourage areas.
Eggs and hidden nymphs can continue to emerge after the first visit. For heavy German cockroach activity, a second treatment helps interrupt the life cycle, reinforce residual coverage, and target new activity that appears after hidden harbourage has been disturbed.
Step 1
We apply a targeted Seclira residual spray to cracks, crevices, baseboards, under-sink areas, cabinet edges, appliance zones, and other harbourage points where cockroaches travel. The goal is not to coat open surfaces; it is to place the material where roaches live, cross, and return to shelter.
Step 2
The Actisol machine lets our technician push a fine treatment mist into tight spaces that are difficult to reach by hand, including wall voids, gaps between counters, deep appliance cavities, and hidden routes behind kitchen and bathroom fixtures. This is one of the biggest differences between a surface-only visit and a professional cockroach cleanout.
Step 3
We finish by applying professional insecticidal dust into selected voids, outlets, pipe penetrations, and long-term hiding zones where appropriate. Dust helps protect areas that remain dry and undisturbed, giving the treatment another layer against roaches that emerge after the first visit.
Preparation matters
Prep is not busywork. It gives the technician access to the places where cockroaches live and prevents food, clutter, and hidden items from protecting the infestation. The more complete the preparation, the better the residual spray, Actisol application, and dust finish can perform.
Empty cabinets, bag loose items, and clear under appliances so treatment can reach harbourage behind motors, plumbing, and cabinet voids.
Download cockroach prep sheet
Bag food, clear cabinets, and expose appliance zones before service
After application, you may see increased activity for 24 to 48 hours as roaches are flushed from hiding places and contact treated areas. Do not clean treated zones for at least 48 hours unless your technician gives different instructions.
Avoid using other pest control chemicals, powders, sprays, or heavy cleaning products near treated areas because they can reduce the effectiveness of the professional application. Follow technician recommendations for sealing gaps, reducing moisture, and preventing future reintroduction.
Infestation signs
Cockroach infestations often start quietly. By the time roaches are visible on counters, in sinks, or crossing floors, they may already have established hidden harbourage behind appliances and cabinets. Watch for these signs before the activity spreads through the property.
Professional inspection
Residential and commercial
Sterex treats cockroach problems in single-family homes, basements, condos, apartments, rental units, restaurants, commercial kitchens, offices, warehouses, and mixed-use buildings. Each site gets a plan based on access, sanitation, building pressure, and infestation severity.
We focus on kitchens, bathrooms, laundry rooms, appliances, shared plumbing walls, baseboards, and storage areas where roaches survive between sightings.
Cockroach activity can move through service routes, adjacent units, and shared infrastructure. Documentation, preparation, access, and follow-up planning are critical.
Food-handling spaces need discreet, targeted treatments that support sanitation, reduce disruption, and focus on cracks, crevices, equipment legs, drains, and utility lines.
Cockroach treatment FAQ
Shop protection plans
Use seasonal protection for prevention around the outside of the home. Book a technician visit when there is active cockroach activity, kitchen sightings, droppings, or recurring pressure that needs an inspection and treatment plan.
2-Spray Bundle
$499
One-time · Exterior barrier sprays
Two exterior barrier sprays timed to peak GTA ant season. Covers foundation, garden perimeter, and all entry zones.
4-Month Bundle
$279
One-time · Includes materials
Pre-season bait box placement, entry point inspection, and sealing — before mice move in for winter.
Year-Round
$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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Seasonal4-Month Bundle
$279
One-time · Includes materials
Fall and winter rodent prevention for Toronto properties — bait stations, entry inspection, and sealing before mice seek shelter indoors.
Year-Round
$799
Per year · 4 seasonal visits
Year-round pest protection plan for Toronto and the GTA — four seasonal visits, priority callback, and bundled savings on bed bugs, wildlife, and specialty treatments.
Seasonal2-Spray Bundle
$499
One-time · Exterior barrier sprays
Targeted summer ant control for Toronto and GTA homes — two professional exterior barrier sprays during peak pavement and carpenter ant activity.
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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Sterex helps customers across the Greater Toronto Area deal with German cockroaches, American cockroaches, Oriental cockroaches, kitchen infestations, condo infestations, apartment roach problems, restaurant roach control, and recurring cockroach activity after incomplete treatments.
Book a Sterex cockroach treatment for your home, condo, apartment, restaurant, or commercial property in Toronto and the GTA.