How To Get Mice Out Of Your Walls, Air Ducts And Crawl Spaces in Toronto in 2026

Mice are one of the most common and persistent household pests in Toronto. Their small, flexible bodies allow them to squeeze through holes as tiny as a dime, making it easy for them to invade your home undetected. They seek warm, dark areas with access to food, which makes crawl spaces, wall cavities, attics, and air ducts ideal environments for nesting and breeding. If left untreated, mice can damage insulation, wires, and even spread disease.

In 2026, homeowners in Canada are increasingly concerned about how mice infiltrate these hidden areas and how to effectively remove them. Whether you have an older home with crawl spaces, a modern house with central air ducts, or hollow walls, it is crucial to understand the behaviour of mice and the best practices for controlling them. This guide outlines practical strategies for removing mice from your home and preventing further infestations. Following these steps will help you maintain a safe, clean, and rodent-free environment.

1.  Mice in the Crawl Space

Once a mouse finds any small openings to the crawl space under your house, it doesn't delay moving in. One mouse brings two more, and then the whole family system starts. As we just discussed, mice need warm and dark areas. There is nothing better than a crawl space for them. You will need to be very careful with your strategy to get the mice out. Mice are generally not as cautious as other rodents. So, it won’t be that much of a bother. To get the mice out of your crawl space, you need to use mice traps with baits. Bait stations and mice traps work well if you use them right. Getting every single mouse out of your crawl space and then sealing off any entry points will be difficult. In case of an infestation, you will surely need professional mice control help in Toronto and beyond.

2.  Mice in the Air Ducts

Air ducts are the second most invaded spaces by mice. Although they are not as ideal as the crawl spaces, no human interaction makes these spots secondary hide-outs for the mice. But getting the mice out of the air ducts is easier as compared to the crawl space. It still is not something very comfortable to do, but here is what may work in this situation. First, you need to turn off the central cooling or the heating system and let your vents reach room temperature. Once it is all safe to open the air duct's grates, you can place your mice traps at the duct's entrance and then wait for the mice to feed on these traps. Once the mice start to trust those traps, set them and get hold of the mice. You can also try spraying a potent rodenticide making sure that the ventilation system is turned off.

3.  Mice in the walls

There have been many cases of infestation where mice make their nests inside the hollow spaces in walls. Often people find out about the presence of mice in the walls too late. The best way to deal with mice is to contact your local pest control expert in such a situation. Professional pest and rodent controllers have all the necessary tools and experience. Don’t worry about getting your walls damaged from the inside when the professionals work on them.

The Take-Away

Whether it is your crawl space or the air duct, professional rodent controllers will dig them out. They will also ensure long-term relief from all kinds of pest and rodent infestation. We would recommend that you hire your local pest control expert to remove the mice from your house.