English (Canada)

We do not manage vermin. We exterminate it.

We manage over 10,000 homes in Montreal. Owners and managers have trusted us for 15 years.

Zero guaranteed presence-Graduated specialist with 30 years of experience-Certified technicians-Ethics and Honesty-Member of the AQGP and CPMA-Zero guaranteed presence-Graduated specialist with 30 years of experience-Certified technicians-Ethics and Honesty-Member of the AQGP and CPMA-
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years of experience

years of experience

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employees

employees

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Housing

Housing

Our interventions, unique to Montreal.

Fast and structured interventions.

Recognized expertise on the ground.

Rigorous and tailored support.

Targeted and effective actions.

A high level of operational demands.

Targeted treatments.

No conventional chemical spraying.

Localization of the problem and eradication at the source.

Verified result.

Total extermination guarantee followed by an extended guarantee according to the pests.

Our interventions, unique to Montreal.




Integrated Pest Management (IPM) approach
Treatment and monitoring until zero presence
No conventional liquid insecticide spraying
Targeted interventions without pest dispersal
10,000 housing units under management
Rigorous prevention and monitoring
Reputation built on trust



Targeted treatments.

Problem localization and eradication at the source

No conventional chemical spraying.

Our selective biopesticides help combat targeted pests while minimizing effects on other organisms.

Verified result.

Total extermination guarantee followed by an extended warranty based on the vermin.

Clear and precise documentation.

Our Services

Methodology

Investigation of the cause

Organic

Insecticide-free treatment

Guarantee

Follow up to zero presence

No more treatments that worsen and shift the problem. We aim for a real and lasting elimination.

Exclusion

Investigation of the cause

Organic

Treatment without conventional sprays

Guarantee

Follow up to zero presence

Our Approach

We are specialists, we look for the true cause of the infestation and adapt each intervention. Our method incorporates a thorough analysis of the intra-building dynamics to eradicate the problem at its source.

Thanks to the integration of natural methods (steam, biological agents), we reduce the use of chemical products and ensure safety. The customer actively participates in the solution for sustainable efficiency.

Each file is monitored until confirmation of the complete disappearance of pests. Gagne Extermination handles, verifies, and guarantees. Never approximations, always concrete results.

Riadh Z.
Founder, Bachelor's in Applied Entomology

Ecological approaches

Rigorous follow-ups

Zero presence warranty

Client awareness

Customer reviews

Transparency and trust

I especially want to recommend this company of professionals, specifically Riadh, who came from Longueuil to Montréal-Rosemont on a Sunday to help me get rid of a wasp nest that had settled in the skylight of my bathroom. He told me that on Sundays he only takes emergency calls at the regular price. A very efficient, helpful, fast, and extremely human technician. Thank you very much to this man who was the only pro to come to my aid on a Sunday out of 23 calls. Big up to Riadh!

Amandine NavarroOwner, Le Gourmet Restaurant

We have been doing business with Extermination Gagné for years and we are always satisfied. Riadh takes the time to explain and also helps us identify the source of the problem and advises us. His team and he are all professional and respectful.

Wellington TerraceOwner, Le Gourmet Restaurant

Rhiad is incredibly honest, super competent, came yesterday for an inspection of our building and took the time to explain the issues and challenges following his inspection before any treatment. I highly recommend him.

Sylvain BriseboisOwner, Le Gourmet Restaurant

I'm very happy and satisfied! They are very respectful and compassionate. They took the time to answer my questions and explain what I needed to do. They properly assessed and treated my apartment. Good work, good people, and good on time. But above all… they got rid of my big pharaoh ant infestation, and it didn’t take that long either. Thank you!! 😊👍

Lina Jean-ReneOwner, Le Gourmet Restaurant

Good service. A team that lives up to their competence. Timely service. They will go several times to eliminate the problem and provide good follow-up.

Margaret SpinosoOwner, Le Gourmet Restaurant

Finally, a true honest and dedicated professional. I used them for bed bugs and mice, and I am really happy to have found them.

Peter DOwner, Le Gourmet Restaurant

On the field

Latest analyses and feedback from the founder.

Complete disappearance after analysis

January 2026

A unique methodology

December 2025

Steam: anti-parasitic solution

November 2025

Contact us

Response within 24 hours by an expert.

Gagne Extermination

Processing down to zero presence.

Since 2011.

© 2011–2026 Gagne Extermination Inc. All rights reserved.

CONTACT US
514-322-8988
entomoexpert@exterminationgagne.com
7330 Maurice Blondeau St, Montreal, QC, H1E 6Z6
OPENING HOURS
Lundi — Vendredi8:00 AM — 5:00 PM
SamediClosed
DimancheClosed

Urgent interventions on Saturdays and Sundays

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