How Much Does an Exterminator Cost in Quebec? (2026)

You found mouse droppings in a cabinet, woke up with bites, or spotted sawdust at the base of a wall. The first question is almost always the same: how much does an exterminator cost in Quebec?

Here is the short answer. In 2026, most residential pest control jobs land between $150 and $700. Heavier cases, like an established carpenter ant colony or a bed bug infestation in a cluttered apartment, can run past $1,000. When an inspection is billed, it usually costs $50 to $125, and many companies credit it toward the treatment.

Almost nobody in this industry publishes prices. We think you deserve better than "call us to find out." So here are the real market ranges in Quebec, pest by pest, and more importantly, what pushes the bill up or down.

Average exterminator costs in Quebec in 2026

The numbers below reflect what standard residential jobs currently cost in Quebec. Every house is different. Use these as a benchmark for judging a quote, not as a guaranteed price.

Bed bugs: $250 to $700 per treatment

Bed bug jobs are rarely solved in one visit. The eggs survive most insecticides, so a serious protocol includes two or three visits spaced two to three weeks apart. For an average-sized home, each treatment runs $250 to $700 depending on the method and how far the infestation has spread.

Heat treatment, which raises rooms past the temperature bed bugs can survive, costs more per visit but can finish the job in one shot. Chemical treatment is cheaper per visit but takes several. Totalled up, the two approaches often land in the same range.

Mice and rats: $200 to $500

For mice and rodents, a basic job includes the inspection, bait stations or traps, and one or two follow-ups. Expect $200 to $500.

The real issue with mice is exclusion. Until the entry points are sealed, trapping only clears out the current tenants, and new ones follow. Full sealing and caulking work can push the total to $650 or more, but it is the part that actually ends the problem.

Carpenter ants: $650 to $1,250

Carpenter ants are among the most expensive jobs in Quebec, for a simple reason: the colony nests inside the wood of your structure, sometimes with satellite colonies. It has to be located, treated directly, and the perimeter treated too. Expect $650 to $1,250 for an established infestation, usually with a season-long warranty.

Ordinary black ants wandering in from the foundation cost far less to deal with. That is why identifying the species matters before you panic at the price.

Cockroaches: $200 to $600

For cockroaches, the bill depends mostly on how bad the infestation is and what kind of building you are in. An apartment treated early, with gel bait and a follow-up, runs $200 to $400. An advanced infestation, or a unit in a building where the neighbours have them too, takes several visits and can reach $600. In multi-unit buildings, treating a single apartment without a plan for the block rarely holds.

Wasps: $150 to $650

Removing an accessible wasp nest, under an eave for example, costs $150 to $300. The price climbs when the nest is inside a wall, in the attic or in the ground, because it takes more time, equipment and precautions. Complex cases run $400 to $650.

The inspection: $50 to $125, often credited

Many companies give a free assessment over the phone and charge $50 to $125 for an on-site inspection, then deduct it from the treatment if you go ahead. For bed bugs, a proper inspection is almost always needed before anyone can give you a firm price.

What makes the price go up or down?

Two neighbouring houses can get very different quotes for the same pest. These are the factors that weigh the most.

• How far along the infestation is. One mouse spotted in October is not the same job as droppings in three rooms plus the attic.
• Size and type of building. A large cottage costs more to treat than a small apartment. Multi-unit buildings bring their own complications.
• Number of visits in the protocol. Be wary of a one-visit price for bed bugs. It is rarely enough.
• Access. A tight crawl space, a packed attic or a wasp nest on the third floor adds time and equipment.
• The warranty. A written multi-month warranty has real value and is often built into a slightly higher price.
• The season. In peak season, July for bed bugs and fall for mice, schedules fill fast, and some companies charge extra for emergencies.

Why a $99 quote should make you suspicious

A proper treatment requires a certified technician, Health Canada approved products, real time on site and a follow-up. At $99, something on that list is missing. Usually it is the follow-up, and the problem comes back within a month. Then you pay twice.

On the flip side, the highest price is not automatically the best service. The right questions to ask before accepting any quote: how many visits are included, what exactly does the warranty say and how long does it last, does the company hold a Quebec pesticide permit, and what happens if the pest comes back.

If you are on the South Shore and want a straight answer instead of a guessing game, Extermination BETA serves Brossard, Longueuil, Saint-Hubert and the surrounding area. Call 514-553-2070, describe the problem, and we will give you the real picture. The quote is free.

DIY or call an exterminator?

Honestly, not everything needs a professional. A few pavement ants on the driveway, a single mouse caught in a trap, a small starter wasp nest in early June that you can reach safely, those are sometimes manageable on your own.

The math changes when the problem persists or keeps coming back. Store-bought products are weaker than the ones reserved for permit holders, and more importantly, the product is rarely the real issue. An exterminator's job is finding the source: the mice's entry point, the carpenter ants' main nest, the bed bugs' hiding spots. Without that, you are killing scouts while the colony carries on.

Simple rule: if you are on your second DIY attempt and the problem is still there, every week you wait makes the professional job longer and more expensive.

Tenant or landlord: who pays for the exterminator?

This comes up constantly in Quebec, and the answer surprises people. In the vast majority of cases, the landlord pays for extermination. The Civil Code of Quebec requires landlords to provide a dwelling fit for habitation, and that includes a home free of vermin.

If you are a tenant and you find bed bugs or cockroaches, notify your landlord in writing right away. If nothing happens, you can turn to the Tribunal administratif du logement, and in Montreal you can file a complaint through 311. Do not pay for a treatment out of pocket before formally demanding the landlord act, unless you have a clear agreement.

One nuance: if the infestation is clearly the tenant's fault, responsibility can be argued. But the legal starting point is that the landlord must act.

How to get an accurate quote without wasting time

To get a reliable price on the first call, have three things ready.

1. Photos. The insect if you caught one, the droppings, the damage, the nest. A photo prevents bad surprises on both sides.
2. The timeline. Since when, in which rooms, is it getting worse.
3. The building context. House, condo or apartment, whether neighbours are affected, pets at home.

With that, a serious exterminator can give you a firm range on the phone and an exact price after inspection. If a company refuses to give you any ballpark before you commit to anything, call someone else.

Frequently asked questions

Is one treatment enough?

For wasps, yes, removing the nest ends it. For mice, you need at least one follow-up and ideally sealing work. For bed bugs and cockroaches, plan on two or three visits. An honest protocol tells you the number of visits up front.

Why is bed bug extermination so expensive?

Because it is slow, detailed work. The technician treats the bed, furniture, baseboards and cracks room by room, then has to come back to eliminate the bugs that hatched after the first visit. Preparing the home properly is half the battle, and a good exterminator takes the time to walk you through it.

Does an emergency cost more?

Often, yes. A same-evening or weekend call can carry a surcharge. For a wasp nest next to your door or an infestation that is exploding, it is money well spent. For ants you have been watching for weeks, a regular appointment within a few days does the job.

Do prices include a warranty?

Not always, and it is worth checking before you sign. Ask for the warranty in writing: how long it lasts, exactly what it covers, and what happens if the pest returns. A verbal guarantee is worth nothing the day you need it.

A straight answer, one conversation away

The ranges above give you the picture of the Quebec market in 2026. Getting from the general picture to a price for your home takes a five-minute conversation and ideally two or three photos.

Extermination BETA is based in Brossard and serves the entire South Shore. Call 514-553-2070 or reach us through the contact page. We will tell you what the job involves, what it costs and how fast we can be there. No pressure, no hidden fees.