Our team operates throughout Greater Montreal to quickly handle any carpenter ant infestation, whether in a private residence or a commercial building. Thanks to our network of strategically positioned certified technicians, we provide fast service in:

• Montreal (all boroughs)
• Laval and the North Shore Terrebonne, Blainville, Repentigny...
• South Shore Longueuil, Brossard, Boucherville...

No matter your location, we guarantee a response within 24 hours in most cases. Travel and inspection are generally free, especially in urgent situations or when visible activity is high.

Carpenter ants are often difficult to spot with the naked eye, especially when they’ve established a colony inside walls or wooden structures. Here are the most common signs of an active infestation:

• Presence of small pile of fine sawdust (often near baseboards or window frames)
• Large black ants seen indoors, especially at night
• Light sounds in walls (scratching or cracking)
• Wood appears weakened, unusual dampness near foundations

To learn more about how these pests build their nests, consult this educational guide from Espace pour la vie.

If you notice one or more of these signs, it is strongly recommended to have your property inspected by a professional before the damage becomes structural.

Our approach is based on a rigorous three-step protocol designed to effectively eliminate carpenter ant colony and prevent their return:

1. Targeted inspection Our technicians identify entry points, risk areas and the potential presence of secondary nests.
2. Professional treatment we apply a registered insecticide (gel, powder or liquid), specifically formulated for carpenter ants, in accordance with the standards of Health Canada.
3. Personalized prevention concrete recommendations for sealing inlets, correcting moisture sources and preventing future reinfestation.

Each treatment is tailored to your situation - single-family home, multiplex or commercial premises - with follow-up if necessary. Our products are safe for children and pets when applied correctly.

Carpenter ants don’t just invade your space — they tunnel through wood, weakening load-bearing structures like beams, floors, and window frames.

• Significant structural damage, costly to repair
• Persistent moisture that promotes their spread
• Hidden nests that are difficult to locate without specialized tools

A well-established colony can contain several thousand individuals. The longer the intervention is delayed, the worse the damage becomes — and so does the treatment cost.

The cost of carpenter ant extermination depends on several factors: the extent of the infestation, the location of the nest, the type of building, and the preventive measures required.

In general, here are the price ranges observed:

• Standard inspection and treatment between 250 $ and 450 $
• Complex treatment (multiple nests or difficult access): up to 650 $

All our treatments are carried out by certified technicians using professional-grade products approved by Health Canada. Travel fees are waived in most cases.

Would you like more details on the techniques used, the duration of the effects, or the differences between a one-off treatment and a preventive plan? Consult our complete guide to carpenter ant prices and treatments.

Our team is available 7 days a week to assess your situation and propose a suitable treatment against carpenter ants. The inspection is quick, discreet and free of charge in most cases.

Call us now or fill in our online form to receive a personalized estimate within 24 hours. We operate throughout the Greater Montreal area, including Montreal, Laval, the North Shore and the South Shore.

Montreal

(514) 349-4393

North Shore

(450) 471-4455

South Shore

(450) 641-2355

Customer satisfaction is our best proof of effectiveness. Here's what some people say after our intervention:

"Fast, professional and reassuring service. The technician found the nest within minutes and treated it effectively. No more ants after 24 hours. Thanks to the whole team!"
- Marie-Claude P., Montreal

Our reviews are available on Google and come from customers who have benefited from a complete treatment against carpenter ants all over Greater Montreal.