Certified — Quebec Ministry of the Environment

Rats in your building?We eliminate the colony and secure every access.

Bigger, more destructive and far more cautious than mice, rats chew wood, young concrete and electrical wiring. Our rat-specific protocol eliminates the colony and blocks their access routes — sewers included.

Phone estimate in 2 minutes

Rat-specific protocol (Norway rat)

Reinforced sealing: galvanized steel, flashing, backflow valves

Drain and foundation access inspection

Same-day service, 24/7

Get your price now (514) 570-1072

Rats — professional pest control in Montreal by Extermineo

At a glance

The service at a glance

Extermineo is a Montreal pest control company, certified and licensed by the Quebec Ministry of the Environment (No. 402363230), that gets rid of rats across Greater Montreal: Montreal, Laval, the South Shore, the North Shore, the West Island and Vaudreuil-Soulanges.

Response time: Often the same day, 7 days a week
Estimate: Free, by phone, in 2 minutes
Price: Fixed, quoted before the job, no travel fees
Guarantee: Written, 6 months — free second visit if the problem persists
Products: Approved by Health Canada
Certification: MEQ No. 402363230 · City of Montreal permit 2026-0094
Contact: (514) 570-1072 · contact@extermineo.ca

Rat or mouse? It changes everything

Size: 20–25 cm body vs 6–9 cm; capsule-shaped droppings 1–2 cm vs rice grains.
Noises: heavy movement and powerful gnawing, often in basements and crawl spaces rather than ceilings.
Behaviour: rats are neophobic — they avoid anything new for days, which is why DIY traps fail.
Habitat: outdoor burrows (foundations, sheds, wood piles) or sewers, entering to feed.

Our rat-specific protocol

Complete inspection: building, exterior perimeter, burrows, drains and sewer connections.
Locked bait stations positioned along the colony's actual routes, with an acclimation period to defeat their wariness.
Reinforced sealing: rats chew through ordinary materials, so we use galvanized steel mesh, metal flashing and mortar.
Backflow valves installed on drains where rats come up through plumbing.
Follow-up included until full elimination, written 6-month guarantee.

Preventing their return

Remove outdoor shelter: wood piles on the ground, brush against the foundation, open sheds.
Locking lids on garbage and compost bins — the #1 food source of urban rats.
Never leave pet food or birdseed out overnight.
Repair foundation cracks and damaged drains quickly. Nearby construction sites displace entire colonies — a good time for preventive sealing.

FAQ — Frequently asked questions

Can rats really come up through the toilet?

Yes — rare but documented. The Norway rat is an excellent swimmer and can climb sewer lines into a building's drains, especially near old infrastructure or construction sites. A backflow valve closes that access permanently.

Why don't my traps catch anything?

Neophobia: a rat avoids any new object on its route for days, and a trap that misses makes it even warier. Our protocol uses an acclimation period and station placement based on the colony's actual routes.

Are rats dangerous to my health?

They can transmit diseases through urine and droppings (leptospirosis, salmonellosis) and their gnawing on wiring is a documented fire risk. An established colony should be treated without delay.

We also handle

Mice Cockroaches Bed bugs Boxelder bugs Wasps & hornets Carpenter ants All service areas →

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A certified technician replies within 6 hours on average. Fixed price announced before the visit, 6-month written guarantee.

Free online quote (514) 570-1072