Scampering and scratching sounds in the walls of your home at night, signs of gnawing or chewing, or damaged food packages can mean you have an infestation of mice or rats. Other signs include droppings and urine, burrows or holes in and around foundation walls, or tracks on dusty surfaces. The best way to get rid of mice is to tackle the problem right away to avoid a severe infestation.

The house mouse has large ears and is light brown to dark grey with a lighter color on its belly. It is often found in urban areas. The deer mouse is brown or grey with a white belly and feet. The white colour on the underside of the tail is an easy way to spot a deer mouse. It may invade buildings near fields and woodlands in the fall.

Mice are well known as being a general pest across North America. They reproduce quickly as baby mice mature to adults at accelerated speed

These woodland mammals are small in size and prefer habitats in forested areas where they can hide in underbrush, tall grasses or shrubs. Mice eat multiple times a day and are are omnivorous. They eat food nuts, seeds, fruits and insects.

While mice prefer forested areas, they often take refuge and invade building, homes, warehouses, factories, barns and even dog houses.  When they do invade homes and buildings, food contamination and property damage are often caused by their foraging, burrowing, chewing and biting tendencies. Mice will consume human food (prepared or waste) and often chew through plastics, books and drywall. Mouse droppings and urine pose serious health threats to humans as they contaminate the surfaces in living areas they come in contact with.

In Canada, the most common mice pests are the house mouse and deer mouse.

Both the house mouse and deer mouse have large ears and average 15cm to 17cm in length. While both are commonly grey or brown in colour, the house mouse has lighter colouring on their body’s underside, while the  deer mouse possesses white bellies and tail bottoms. The feet of deer mice have white colouring, differing from the house mouse's pinkish-buff foot colouration. The largest difference between both mice is the tail length.  The house mouse’s tail is usual twice the length of the mouse's body length, while the deer mouse’s tail is usually half it’s body length.

What can they do?

Mice are carriers of disease, and can damage property. The deer mouse is the most common carrier of the deadly Hantavirus.

How to get rid of mice

Getting rid of mice can be a difficult task, but there are several measures that you can take to stop an infestation.


  • Prevention is the key in controlling rats and mice problems in structures. 
  • Rodent-proof your structure.
  • The first line of defense is to get rid of easy entry points. Mice can squeeze through cracks as small as a dime, while rats can enter through a quarter-sized hole. Even the small gaps created by worn thresholds under doors will allow mice access to your structure.
  • Use metal weather stripping under doors, and weather strip windows. 
  • Patch cracks in foundations.
  • Stuff copper Stuff-it or Extruder sealing products around pipes before caulking or plastering.
  • Cover dryer vents, attic vents or soffits with fine mesh metal screening.

Make your home less appealing to rodents

  • Remove nesting and harborage sites around your structure.
  • Cut tall grass and weeds back from the structure.
  • Secure garbage in containers with tight-fitting lids.
  • Raise woodpiles about 30 centimeters (1 foot) off the ground. Place them away from the house.
  • Never place fatty or oily food waste, eggs or milk products in the compost.
  • Use a layer of heavy metal mesh between the soil and the bottom of the compost.
  • Eliminate water sources like leaky taps, sweating pipes and open drains.
  • Keep the kitchen clean and store dry food and dry pet food in metal or glass containers.


Environmental Pest Control uses integrated pest management solutions for getting rid of mice. We offer exceptional mouse poison treatment services and are experts on how to get rid of mice in house, apartment buildings and commercial properties.

Call 1 (800) 263-5055

Our Professional Team is Happy to Help!