Montréal Exterminator
Dealing with pests in Montréal? Take a breath, you are in the right hands. A certified technician comes to you today, from Old Montréal to Pierrefonds. We find where the problem starts, treat the source, and back it up in writing with a 12-month guarantee. Find your area and its most common pests below.
Experience
35 years on the island
Certified
Health Canada · PMRA
Compliant
MELCCFP Québec
Free estimate in 2 minutes
514·525·9111Every Montréal area has its own pests
The building stock, the age of the homes and how close you are to water decide which species take over. Here are our 19 boroughs, grouped into 5 service zones.
Dense urban core
5 boroughsAffluent, mature residential
3 boroughsNorth & Northwest
5 boroughsSouthern riverside & industrial
2 boroughsIsland east & west
4 boroughsMontréal’s climate sets the schedule
From the April thaw to the deep January cold, each season pushes a different species indoors. Knowing when to act keeps a problem from turning into an emergency.
Spring
As the thaw arrives, carpenter ant queens swarm out of the mature trees of Mount Royal and the wooded west end. The first workers show up in Plateau triplex kitchens, and wasp queens start building their nests under the eaves.
Carpenter ant swarmingSummer
The peak of the year. Wasp colonies hit their maximum in August, carpenter ants work the wood at night, and the July 1st moving day sends bed bug reports jumping from one unit to the next. The heat drives cockroaches out of the ducts.
Yearly peak · all pestsFall
Cooler nights push mice and field mice to look for warmth, slipping in through foundation cracks in Ahuntsic and Pierrefonds. Raccoons settle into attics, and the last wasps, short on food, turn noticeably more aggressive.
Rodents move inWinter
Snug inside the walls, rats and mice breed away from the cold. Cockroaches persist in heated, high-density buildings, bed bugs never take a break, and bats quietly hibernate in poorly insulated attics.
Breeding undercoverThree realities only Montréal knows
What the island’s geography and calendar impose on its residents, and why an exterminator from here works differently.
Lyme disease is climbing Mount Royal
Blacklegged ticks now colonize Mount Royal park and the wooded west of the island. About 24% of the ticks analyzed carry the bacteria. Managing the habitat around residential lots has become a real concern, and we can guide you through it.
National moving day
Every July 1st, close to 225,000 households change address on the same day. Mattresses and sofas left on the curb become perfect carriers, and an infestation can move through an entire building in a few weeks of July. We act fast to break the chain.
Water and tunnels as highways
The St. Lawrence River and the Rivière des Prairies feed the humidity carpenter ants love, while the tunnels of the underground RESO give rats a heated network linking downtown from end to end.
Nine boroughs, seen from our trucks
What we actually observe, street by street. The building stock tells you more about the pest than any national average.
Le Plateau-Mont-Royal
The realm of the century-old triplex. Original framing, outdoor staircases and back-lane sheds give carpenter ants the soft, damp wood they love. We focus on the rim joists and window sills, where rain has been seeping in for a hundred years.
Rosemont–La Petite-Patrie
The green alleys and community gardens, wonderful for biodiversity, also feed ant colonies and wasp nests. The 1930s brick duplexes let mice in through cracked concrete steps facing the yard.
Ahuntsic-Cartierville
Along the Rivière des Prairies, post-war bungalows face a double pressure: field mice digging up the lawn in fall and mice taking advantage of cold crawl spaces. The wooded banks also bring wasps and, more and more, ticks.
Villeray–St-Michel–Parc-Ex
One of the highest rental densities on the island. Shared walls and ducts turn a cockroach or bed bug problem into a whole-building issue. Treatment only makes sense at the building scale, never a single unit.
Côte-des-Neiges–NDG
The sharpest contrast on the island: apartment towers on the CDN side, upscale cottages and tree-lined alleys on the NDG side. The first draw bed bugs and mice; the second, carpenter ants in the porches and raccoons under the galleries.
Mercier–Hochelaga-Maisonneuve
The old eastern industrial sites and tight working-class plexes are prime ground for rats: nearby sewers, wood sheds and redeveloping vacant lots. Construction sites regularly displace colonies that fall back into neighbouring homes.
LaSalle & Verdun
Pressed against the river and rapids, these areas combine the humidity that draws carpenter ants with old stone foundations that let mice in. On Île-des-Sœurs, the newer towers add their share of earwigs and wasps on the facade.
Outremont & Westmount
Prestige heritage homes, period woodwork and century-old trees against the roofs: the perfect setting for carpenter ants and raccoons. Here we favour discreet work that leaves the often irreplaceable original finishes untouched.
Ville-Marie
Old Montréal restaurants, residential towers and commercial basements linked to the RESO: cockroaches and rats are at home here year-round. The nearby restaurants call for integrated management, with sealed entry points and monthly follow-up.
Our extermination services in Montréal
Each pest has its method. The button leads to the full, priced service, and the small link to the identification sheet if you are still unsure what you saw.
Carpenter ants
They carve through the wood of your frame. We locate the main nest and treat the whole colony with a slow-acting bait the workers carry back themselves, never just a surface spray.
Mice
Scratching at night, droppings along the baseboards. We seal the entry points and set up a safe baiting system, out of reach of children and pets.
Cockroaches
Peppery droppings and an odour in apartment buildings. We treat with gel and coordinate the work building-wide to break the cycle for good.
Rats
Holes in the foundation, grease marks along the walls. Common near sewers and construction sites downtown and in the east. Strategic sealing and baiting, every step explained.
Bed bugs
Lined-up bites in the morning, stains on the sheets. They peak around July 1st. Heat or chemical treatment depending on the home, with a clear plan before and after.
Wasps
A nest under the eaves, constant traffic at the roofline. We remove the nest in protective gear, the same day when access allows. No product ever left within reach.
We cite our sources
Our work follows provincial and municipal regulations. Feel free to check for yourself with the relevant authorities.
Pests in Montréal today? We can be there this afternoon.
Under an hour for emergencies, across all 19 boroughs. Free estimate, 12-month written guarantee, and 35 years of hands-on work on the island. You are not on your own, we take it from here.
A real person answers in under 2 rings. No menu, no hold music.
A Extermination works in every Montréal borough and neighbourhood, including the West Island, Sainte-Geneviève, the Mile-End, Longue-Pointe, Tétreaultville, Rivière-des-Prairies and Pointe-aux-Trembles, with a method suited to each sector’s stock.
