Almost every cockroach call in Scarborough turns out to be a German cockroach, and clearing one takes far more than a single spray. These roaches breed quickly, shelter in warm kitchens and bathrooms, and in the aging rental towers along Kingston Road, Eglinton East, and Lawrence East they move from one unit to the next through shared walls and pipe chases. Getting rid of them means gel bait, targeted treatment, and sanitation together, normally across two or three visits. Most Scarborough roach jobs land between $200 and $600. Spotting them in daylight tells you the colony is already large.
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What kind of cockroach you have in Scarborough
Put a name to the roach before anything else, because on nearly every Scarborough job it is a German cockroach, and that one fact reshapes the entire plan. German roaches are small, about 1.5 centimetres, light brown, with two dark stripes behind the head. They live indoors year-round, cluster in kitchens and bathrooms where it is warm and moist, and a single female can lead to thousands of roaches in a year. They do not come in from outside. They came in on something or through a shared wall, and they stay because the conditions suit them.
The other one you will meet is the Oriental cockroach, and it behaves nothing like the German. Oriental roaches are larger, darker, almost black, and they live in cool damp spaces: basements, drains, floor cracks, the underside of a laundry sink. They wander in from outside through gaps and floor drains, especially in the older postwar homes around Scarborough with fieldstone or block foundations. You treat them by drying the space out and sealing entry, not by chasing them through a kitchen.
If you are seeing small striped roaches in the kitchen, that is German cockroach, and a one-time spray will not clear it.
Why you have cockroaches (and why it is rarely about being clean)
A tidy home does not keep German cockroaches out, because they arrive by being carried in, not by being invited. They ride in on grocery bags, cardboard boxes, used appliances, secondhand furniture, and moving boxes, and in an apartment or condo they simply cross over from the unit next door. Once inside they need three things: warmth, water, and a hiding spot. A Scarborough kitchen gives them all three. They shelter behind the fridge motor, inside the dishwasher frame, under the sink, in the gap behind kitchen cabinets, and in the cardboard and clutter of a pantry.
This is why a spotless home still ends up with them. You can scrub the kitchen daily and still have roaches if the unit beside you or below you is infested, because they follow the plumbing and the warm voids in the wall. In the older low-rise and high-rise blocks common across Scarborough, the pipe chases run floor to floor, and roaches climb them like a staircase. That is also why treating one unit on its own usually fails in these buildings. The source may be two doors down.
How we clear a cockroach infestation
- Inspection (free). We find where they are harbouring: behind and under appliances, inside cabinet voids, around plumbing. We confirm it is German cockroach and gauge the size, because that sets the number of visits.
- Gel bait and targeted treatment. We place professional gel bait where roaches actually travel and harbour, and treat cracks and voids directly. The products we use are registered by Health Canada's Pest Management Regulatory Agency, which evaluates each product for safety before approval, and we apply them to the label.
- Sanitation and access. We tell you exactly what to clean, move, and clear so the bait wins. Grease, crumbs, and standing water compete with our bait, so cutting the food and water supply is half the job.
- Follow-up visits. We return in two to three weeks to hit the next hatch. German roach eggs are carried in a case that resists a single treatment, so the follow-up is not an upsell. It is how you break the breeding cycle.
Why one visit is rarely enough
One treatment falls short for two reasons: the biology of the egg case, and, in the towers, the geography of the building. A female German roach carries an egg case holding 30 to 40 eggs, and that case shields the developing roaches from the first round of product. Two to three weeks later they hatch, and if you stopped after one visit, you are back where you started. This is normal for German cockroach. The reputable plan is spaced visits that catch each new hatch until the population collapses.
In a condo or an apartment there is a second reason. Even a flawless treatment inside your unit does nothing about the roaches in the wall void or the neighbour's kitchen. They walk back in. Clearing a whole building, which is the shape most Scarborough tower infestations take, means treating the affected units together and sealing the shared runs, and that coordination usually falls to the landlord.
In an apartment or condo, treating your unit alone can fail if the source is a neighbouring unit. Building-wide roach problems need the landlord or property manager to coordinate treatment across units. See who pays and who is responsible.
What cockroach control costs in Scarborough
Expect a typical Scarborough cockroach job to come to $200 to $600, with the spread driven mostly by how many visits it needs and how large the space is. A studio or one-bedroom caught early sits at the low end. A family kitchen with a heavy, established infestation needs more visits and lands higher. Per-unit pricing in an apartment building is often lower than a house, because the treated area is smaller, though the real fix depends on the whole building.
| Job | Typical Scarborough range |
|---|---|
| Condo / apartment unit, early or moderate | $200 to $350 |
| House or larger unit, established infestation | $350 to $500 |
| Heavy infestation / multiple visits / larger home | $500 to $600+ |
| Follow-up visits in the plan | usually included |
We give a firm quote after the free inspection, and we do not add charges you did not agree to. The full cost page breaks down every pest. If you are weighing whether this is a call-a-pro situation at all, our do-I-need-an-exterminator guide is honest about it.
How to prep for a cockroach treatment
Prep is what holds the treatment together, and for German cockroach it counts more than for almost any other pest. Empty and wipe down the kitchen cabinets and drawers so we can reach the voids and so bait is not competing with grease and crumbs. Clear clutter, especially cardboard and paper bags, which roaches nest in. Fix dripping taps and wipe up standing water, because a roach can live on water alone. Do not spray store-bought aerosol before we arrive. Repellent sprays scatter roaches deeper into walls and into neighbouring units and make the professional bait less effective.
Can you do it yourself, or do you need a pro?
A one-off large roach in a basement, seen once with no others, is often an Oriental roach that wandered in, and sealing gaps and drying the space out can handle it yourself. Call a pro the moment you see small striped roaches in the kitchen, spot any roach in daylight, or find them in more than one room. That pattern is German cockroach with an established population, and over-the-counter sprays make it worse by scattering them. Store bait stations rarely reach the harbourage where they breed. Our honest triage guide walks the line in detail.
We would rather tell you it is one wandering roach and you can seal a gap than sell you a treatment plan you do not need.
If you rent, your landlord usually pays
If you rent in Ontario, cockroach control is almost always the landlord's job, not yours. The Residential Tenancies Act requires landlords to keep a rental in a good state of repair and fit for habitation, and a cockroach infestation fails that standard. That duty holds even in a building where roaches spread between units, which is exactly when a landlord needs to treat the affected units together. Report the problem to your landlord in writing and keep a copy. Our page on who pays for pest control in an Ontario rental covers what to do if the landlord will not act.
Common questions
How do I get rid of German cockroaches in a Scarborough apartment?
It takes professional gel bait and targeted treatment across two to three visits, backed by sanitation, and in a shared building, coordinated treatment of the neighbouring units. A single spray will not finish the job, because the egg cases outlast the first round and roaches keep crossing back through the shared walls.
Why do I have cockroaches when my place is clean?
German cockroaches hitch in on boxes, groceries, and used items, or they cross from a neighbouring unit through shared walls and pipes. Keeping a clean home slows them down, but it cannot shut them out when the infestation next door is the source.
How long does cockroach treatment take to work?
Most infestations come under control over two to three visits spread across four to six weeks. Expect a sharp drop inside the first two weeks, with each follow-up clearing the next hatch until they are gone.
Are the treatments safe for my kids and pets?
The products carry Health Canada PMRA registration, which means their risk to children and pets is reviewed before approval, and we place gel bait inside cracks and voids away from open areas. Let us know about kids, pets, or a pregnancy when you book and we plan around it.
Do I have to leave during a cockroach treatment?
Usually not. Gel baiting and crack-and-void work do not require you to clear out. If we use any product that calls for it, we tell you which area to stay off and for how long, per the label.
Do I need to throw out my furniture or appliances?
Rarely. German cockroaches hide in and around appliances, but the treatment reaches them there. If a badly infested item genuinely is not worth keeping, we say so plainly rather than assume you should toss it.
Does the guarantee cover cockroaches?
Yes. If roaches are still active within two months of the completed treatment plan, we come back once at no charge.
Reviewed August 2026.
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