Carpenter ants?
We protect your home's structure.
Carpenter ants dig into the wood of your house to shelter their colony. Inspection, service within 24 hours, written guarantee offered depending on the treatment chosen. We locate the main nest and the satellite nests before the damage gets worse.
A carpenter ant colony doesn't leave on its own. It keeps expanding its galleries.
Carpenter ants don’t eat wood: they excavate it to build smooth galleries where the colony lives. Every active season, these tunnels spread and weaken beams, joists and window frames. Our certified technicians find the moisture that attracts the ants, locate the parent nest and its satellites, then apply Health Canada-registered products.
House, cottage, apartment building or business: we adapt the treatment to the structure of the building and document the work in a written report, with a written guarantee offered depending on the treatment chosen.
The longer you wait, the more it costs.
A real structural risk
Unlike garden ants, carpenter ants dig into load-bearing wood. The older the colony, the further its galleries spread, first in damp wood, then in sound wood, and the higher the repair bill.
What you see hides the real nest
The workers you see on the counter often come from a satellite nest. The parent nest is elsewhere (wall, tree, deck). Unless it is found, the problem comes back.
Store-bought products just move the problem
Spraying a trail kills a few workers but spares the queen. The colony moves and the infestation starts again a few weeks later.
Non-repellent bait method
We use baits that the workers carry back to the nest, so the whole colony, queen included, is eliminated. Follow-up visit included, written guarantee offered depending on the treatment chosen.
We know every type of building.
House, apartment, business or property: the treatment adapts to your situation.
Damp wood and leaks
Carpenter ants first move into wood softened by water: around windows, at the base of walls, basement joists. We treat the area and target the source of moisture.
Window frames and decks
Frames, sills, deck joists and lintels are favourite entry points. We inspect the whole perimeter and seal the gaps.
Apartment and multi-unit buildings
A colony can spread from one unit to another through shared walls. Coordinated treatment keeps a neighbour’s unit from reinfesting yours.
Cottages and wooden buildings
In spring and early summer, winged ants emerge from the wood frame to start new colonies. Acting quickly breaks the swarming cycle.
Four steps, no bad surprises.
A professional approach, from the first call to the follow-up.
Inspection
A certified technician locates the infestation, assesses its extent and identifies the entry points.
Action plan
Clear quote and a personalized plan given on site. You know exactly what to do before we arrive.
Targeted treatment
Locating the main nest and satellite nests, then treatment with non-repellent baits.
Follow-up & guarantee
Follow-up visit included, written guarantee offered depending on the treatment chosen. If it comes back within the guarantee period, we come back.
What you need to know about carpenter ants
The essentials below. For full details, see our encyclopedia entry.
Carpenter ants in brief
Carpenter ants (Camponotus) excavate wood to house their colony, a serious structural risk. Workers look for sugar and protein inside the house.
- Fine sawdust near baseboards
- Rustling in the walls at night
- Clear wings on the floor in spring
- Lone workers on the counters
An exterminator near you.
We respond quickly anywhere in the region. Find your city.
A carpenter ant problem?
Let's talk.
No-obligation assessment. Describe your situation and we’ll call you back within 2 hours.
We answer your questions.
Carpenter ants are large (6 to 13 mm for workers) and black, with a narrow waist and a rounded thorax. Key clue: fine sawdust (frass) near baseboards, frames or in the basement, and workers active in the evening. If in doubt, the inspection confirms the species before any treatment.
Yes. They don’t eat wood, but the galleries they dig weaken joists and beams over time, especially in damp wood. The sooner we step in, the more limited the damage.
Most residential treatments range from $200 to $600, depending on the extent and the number of nests. The inspection and quote come with no obligation: you know the exact price before we start.
Yes. We use Health Canada-registered baits and products, applied by certified technicians, and we tell you the re-entry times on site.
A written guarantee is offered depending on the treatment chosen: if the problem comes back within the covered period, we come back at no charge. We are available 24/7 for emergencies.
Every day you wait, the problem grows.
One call is all it takes. Inspection, clear quote, written guarantee offered depending on the treatment chosen. We take care of the rest.