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Mouse extermination in Montreal & the South Shore

Complete elimination and precise entry-point identification. Over 60% of Quebec homes have mice in winter — two-phase protocol, 60-day follow-up available on request.

An adult mouse only needs a pencil-width hole to enter. When the cold arrives in October, thousands of mice try to get into Greater Montreal homes — basements, crawl spaces, garages, attics. A single female can have 5 to 10 litters per year. They contaminate food, gnaw electrical wires (a fire cause), and their droppings can transmit viruses like hantavirus. Our intervention eliminates the existing population, then we precisely identify the entry points and hand you a detailed plan you (or your contractor) can seal — without that, the problem returns next fall.

Client preparation guide — mice
Mouse — Mus musculus species — KZ Extermination

Signs of infestation

How to tell if you have them

These indicators appear first. Visible presence during the day almost always signals an established infestation.

  • Black rice-grain droppings in drawers, under sink, behind stove
  • Scratching or running sounds in walls and ceiling at night
  • Gnawed food packaging, unusual crumbs
  • Strong urine odor in closed spaces
  • Holes or gnawing on wood, plastic or wires

Why act

Risks and consequences

  • 1Transmission of salmonella and hantavirus through droppings contact
  • 2Fire risk from gnawing electrical wires (under-recognized but documented cause)
  • 3Contamination of food and kitchen surfaces
  • 4Very fast reproduction: 5 to 10 litters of 5 to 6 pups per adult female per year

Our treatment

Professional method, structured protocol

Our two-phase intervention: phase 1 — elimination via secured bait stations (child- and pet-proof) and mechanical traps at strategic points for 14 to 21 days. Phase 2 — exclusion diagnosis: full exterior inspection, precise identification of entry points (often <1 cm), with a written materials recommendation (steel wool, mortar, specialized caulking) you can do yourself or have your contractor handle. A 60-day follow-up can be scheduled on request.

Prevention

Prevent their return

  • Seal all openings over 6 mm around pipes, ducts and foundation
  • Keep pet food in airtight containers
  • Cut vegetation 30 cm away from the house
  • Check garage doors and threshold seals
  • Inspect attic and basement in early fall

Free quote

Free quote in 60 seconds

Describe your situation — reply in under one business hour.

  • Response within one business hour
  • No obligation, no assessment fee
  • Transparent estimate before any treatment
  • Certified IPM method, Health Canada approved products

Frequently asked questions

Clear answers, no jargon

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