- Home
- Our services
- Ants
Ant exterminator
Montreal, Laval and the South Shore
The ants vanish after you use a hardware-store product, then come back a few days later. That's normal: the colony was never touched. Our job is to find it and eliminate it, queen included.
An ant infestation works like an organized system: a queen, workers and a network of trails between the nest and food sources. As long as the colony is active, the ants keep coming back, no matter how many workers are killed on the surface.
In and around Montreal, several species invade properties, and each one calls for a different approach. Carpenter ants in particular dig their tunnels in damp wood in walls, window frames and structures, and can cause serious damage if left alone.
The most common ants around here
Carpenter ants
Large and black, they attack damp wood and leave small piles of sawdust. The most destructive kind.
Carpenter ants in detail
Black garden ants
Common in kitchens, drawn to sugar and food residue.
Pharaoh ants
Tiny, they form several colonies in the same building and are hard to get rid of without a proper method.
Pavement ants
They nest under slabs and sidewalks, then come in through foundation cracks.
Signs of an active colony
The sooner you spot the signs, the simpler the treatment.
- Ants every day in the same spots, even after cleaning
- Visible trails along baseboards, counters or outside walls
- Ants gathering near food or water
- Small piles of fine sawdust near wood (carpenter ants)
- Activity in the walls, under the floor or around windows
- Winged ants indoors in spring: a mature colony is established close by
Residential, commercial and industrial
Residential
- Kitchens and bathrooms
- Damp basements
- Door and window frames
- Decks, patios and slabs
- Condos and apartments
Commercial and industrial
- Restaurants and food businesses
- Offices
- Warehouses
- Apartment buildings
- Daycares and schools
How we work
A proven method we've used for over 20 years, adapted to each building.
Identifying the species
The treatment depends on the ant involved. We identify the species and look for the source: food, moisture, access.
Finding the colony
The essential step. If the nest isn't found, the ants come back.
Targeted treatment
A method suited to the species, with registered products, to reach the queen and not just the workers.
Prevention
Fixes for moisture, entry points and food sources to prevent a new colony.
So the problem doesn't come back
- Clean up crumbs and sugary residue as you go; store food in closed containers.
- Reduce moisture: fix leaks, ventilate the basement and bathroom.
- Seal foundation cracks and the gaps around windows and doors.
- Remove rotten or damp wood that touches the house.
- A yearly exterior treatment holds back colonies moving in close to the building.
Frequently asked questions
Can't find what you're looking for? A technician answers 24/7.
Call 514-231-1615Why do ants keep coming back?
Because over-the-counter products kill the workers you can see without reaching the colony. The queen keeps laying eggs and the traffic starts up again. The nest has to be found and treated directly.
How do I recognize carpenter ants?
They're among the largest ants in Quebec, black or black and red. You often see them in spring, sometimes with wings, and they leave fine sawdust near the wood they dig into. Seeing them indoors again and again calls for a prompt inspection.
How much does ant extermination cost?
The price depends on the species, the level of infestation, the area to treat and how complex the building is. We'll give you a free quote.
