How Fast Mice Multiply in Calgary Homes—and Why Immediate Action Matters

7/1/2026

How Fast Mice Multiply in Calgary Homes—and Why Immediate Action Matters

You spot a mouse in your kitchen or basement and think, "It's probably just one."

Unfortunately, that's rarely the case.

By the time a mouse is comfortable enough to be seen in your home, there are often several more hiding inside your walls, attic, crawlspace, or basement. What starts as a minor nuisance can quickly become a full-scale infestation if left untreated.

How Fast Do Mice Multiply?

Mice are among the fastest-reproducing pests that invade homes.

Here's why their populations explode so quickly:

  • Pregnancy lasts only 19–21 days.

  • Female mice can become pregnant again within 24 hours after giving birth.

  • Each litter typically contains 6–8 babies, but can have as many as 14.

  • Baby females can begin reproducing at just six weeks old.

Because multiple generations reproduce simultaneously, the population grows exponentially—not gradually.

Under ideal conditions, one male and one female mouse can produce anywhere from 200 to more than 2,000 mice in just six months.

That's why waiting to "see if the problem goes away" almost always makes the situation worse.

Why a Mouse Infestation Is More Than Just an Annoyance

Many homeowners underestimate the damage mice can cause.

A growing mouse infestation can:

  • Contaminate food, cupboards, and countertops with urine and droppings.

  • Chew electrical wiring, increasing the risk of costly repairs and potential electrical fires.

  • Damage insulation, drywall, furniture, and stored belongings.

  • Spread bacteria and allergens that may affect your family's health.

  • Become significantly more expensive and difficult to eliminate the longer it's ignored.

The earlier the infestation is addressed, the easier—and more affordable—it is to resolve.

Why DIY Mouse Control Often Falls Short

Store-bought traps may catch a few mice, but they rarely solve the root of the problem.

Without identifying where the mice are entering your home or where they're nesting, new rodents will continue to find their way inside.

Professional mouse control focuses on eliminating the infestation—not just catching individual mice.

How Evicta Pest Control Protects Calgary Homes

At Evicta Pest Control, we use a comprehensive approach to eliminate mice and help prevent them from returning.

Our mouse control service includes:

  • A thorough inspection to identify entry points, nesting areas, and signs of activity.

  • Strategic placement of professional-grade bait stations and traps.

  • Recommendations to seal entry points and reduce future infestations.

  • Follow-up monitoring to ensure the mouse population has been eliminated.

Our goal isn't simply to remove mice—it's to help keep them from coming back.

Don't Wait Until Two Mice Become Two Hundred

Every day you delay gives mice more time to reproduce, spread throughout your home, and cause additional damage.

If you've seen a mouse—or signs like droppings, scratching noises, or gnaw marks—it's time to act.

The sooner treatment begins, the faster your home can be protected.

Need Professional Mice Control in Calgary?

Evicta Pest Control provides fast, reliable, and effective mouse control services throughout Calgary and surrounding communities.

Your home isn't a BugBnB.

Call 587-899-0548 today to schedule your inspection and stop the infestation before it grows.

Evicta Pest Control

Expert pest control for homes and businesses.

Hours of Operation

We work around the clock (24/7)