Carpenter ant
exterminator.
Carpenter ants in your house? Over the years, this type of infestation can weaken a building’s structural wood. At A Extermination, we offer a specialized carpenter ant extermination service, with effective methods that eliminate the colony at the source.
Not sure they’re carpenter ants? Check our complete identification guide.
Our method · complete treatment
ESTIMATE
- In business since
- 1994
- Response
- Fast· day and night
- Written guarantee
- 12months
- Availability
- 24/7· emergencies
Why they are
dangerous
Carpenter ants don’t eat wood, but they dig galleries in it to build their nests, which can weaken a home’s structure. They are often linked to moisture, damaged wood and water leaks. Left untreated, the colony grows year after year and the damage to the wood adds up.
The queen, the only one that reproduces
The queen is the only one that reproduces in the parent colony and the satellite colonies. Once she is eliminated, the whole colony eventually dies.
Active even in winter
If you regularly see carpenter ants in your house, especially in the middle of winter, the colony is probably established somewhere inside your home.
Signs of an infestation
Large black ants (6 to 13 mm), small piles of sawdust along the walls, noises inside the walls, ants active even in winter. If you notice these signs, a nest is probably present.
Not sure they’re carpenter ants?
Camponotus spp · 6 to 13 mm · black, brown and reddish. Our complete guide covers anatomy, signs of activity and common look-alikes.
Our extermination
method
Our certified technicians use professional methods to eliminate colonies at the source. Every situation is different, so our treatments are adapted to it.
Complete inspection
We locate the nests, main and satellite, inside and outside the house.
Cause analysis
We identify what attracts the colony: damp wood, water leaks, access points.
Targeted treatment
Registered professional products, applied inside and outside to reach the colony at the source.
Prevention
We correct the conditions that favour ants and seal entry points to keep them from coming back.
Result: complete, lasting elimination
The signs you should never ignore.
A short video from our team (in French) to understand the danger carpenter ants pose to your home. Fine sawdust along the walls, noises in the partitions, large black ants active even in winter: these signs mean a nest is probably settled in the structure.
Book a visitCarpenter ants: a hidden danger that threatens your home
Why DIY solutions
don’t work
Do it yourself Store-bought products
- Sprays mostly kill the ants you can see
- Don’t destroy the main colony
- Baits are often ignored by carpenter ants
- No structural inspection
- No guarantee if they come back
A Extermination Recommended
- Complete inspection: main and satellite nests
- Cause analysis (moisture, access points)
- Registered professional products
- Indoor and outdoor treatment
- 12-month written guarantee: we come back at no charge
What we treat
most often.
Our solutions are adapted to local conditions: moisture, climate, type of building. The final price is set on site, after the inspection.
Infestations inside the walls
Carpenter ants are attracted to damp, damaged wood. Damp areas such as bathrooms and basements are especially prone to infestation.
- Damp areas located
- Nest located inside the wall
- Water leak repairs recommended
Colonies in the wood
Carpenter ants dig galleries in wood to live in. Weakened support beams or damaged door sills often point to their presence.
- Inspection of wood structures
- Colony treated at the source
- Entry points sealed
- 12-month written guarantee
Activity in winter
Carpenter ants are inactive in winter, unless their nest is in a heated part of the house. Seeing them constantly in winter means the infestation is bigger than it looks.
- Indoor nest located
- Targeted treatment
- Follow-up and prevention
If they come back,
so do we.
All our services under contract come with a 12-month written guarantee. If the infestation persists, we come back for a new treatment at no extra charge, as long as the technician’s written recommendations are followed. The guarantee certificate is given to you before the treatment.
What people say about us
when we solve the problem.
450+ Google reviews across our listings, with a 4.3 / 5 average.
“Bravo to the whole team for your impeccable work and your contagious good mood. I haven’t had any ants since!”
“Jacob inspected the whole basement and found ant galleries in two beams. Treatment done the same day, and he explained exactly what he was doing and why, without unnecessary jargon. Honest service.”
Montreal, South Shore,
Laval and Montérégie
We respond quickly to carpenter ant infestations in Montreal, Longueuil, on the South Shore, in Laval and in Montérégie. Our solutions are adapted to local conditions.
Montreal
- Local phone
- 514·525·9111
- Service
- 24/7
Service in every borough of the island, plexes and single-family homes.
See MontrealLongueuil
- Local phone
- 450·466·7711
- Service
- 24/7
Vieux-Longueuil, Greenfield Park, Saint-Hubert and the entire South Shore.
See LongueuilLaval
- Local phone
- 450·661·1123
- Service
- 24/7
Chomedey, Sainte-Rose, Vimont and every neighbourhood of Laval.
See LavalYour questions,
our answers.
Didn’t see your question? Call us: phone consultations are free, no appointment needed.
What are the signs of carpenter ants?
Fine sawdust: carpenter ants dig galleries in wood and push fine sawdust out. If you find fine sawdust near your house or your wooden furniture, it may be a sign of an infestation.
Winged ants: during the breeding season, carpenter ants send out winged ants to start new colonies. Damaged wood: weakened support beams or damaged door sills. Worker ants moving around your house, especially in winter.
If you have the slightest doubt about ants in your house, call us as soon as possible.
How do you get rid of carpenter ants?
To get rid of carpenter ants, the queen has to be eliminated, since she is the only one that reproduces in the parent colony and the satellite colonies. Once she is eliminated, the whole colony eventually dies.
Store-bought sprays mostly kill the ants you can see and rarely reach the main colony. Our approach tackles the problem at the source: inspection, nest location, indoor and outdoor treatment with registered professional products, then prevention.
What attracts carpenter ants?
Damp wood: carpenter ants are attracted to damp, damaged wood. Damp areas such as bathrooms and basements are therefore especially prone to infestation. Water leaks make wood damp and attract them too.
Food: they feed on various foods, such as honey, syrup and sweet fruit. Trees and plants: they can live there and enter homes looking for food or a warmer, drier shelter. Fixing leaks, sealing food supplies and keeping wood dry reduce the risk.
How do you find a carpenter ant nest?
Follow the worker ants: they usually take the same routes to look for food or water. Look for fine sawdust near walls and wooden furniture. Check damp areas such as bathrooms and basements.
If you can’t find the nest yourself, our technicians identify the source of the infestation and locate the main nest and the satellite nests.
When should you worry about carpenter ants?
As soon as you notice them in or around your home, because these insects can cause serious structural damage over time. If you regularly see carpenter ants in your house, especially in the middle of winter, it may be a sign that the colony is established somewhere inside your home.
The longer you wait, the more the damage can grow. That’s why it’s important to act quickly.
How much does treatment cost?
The price depends on the size of the infestation. The final price is set on site, after the inspection. Call us at 1·888·582·2191.
Call now,
we’ll take care of it.
Fast service, day and night. Results guaranteed in writing, and a team that has been doing this since 1994.
24/7 service, fast response everywhere in Montreal, on the South Shore and the North Shore.