If you are looking for how to keep mice out of your Edmonton home this fall, the time to act is now, before the first hard freeze pushes them indoors. As the nights cool through September and October, mice hunt for a warm place to spend the winter, and your house sits at the top of their list. A little mouse proofing now is far easier, and far cheaper, than clearing an established infestation in January.
This guide walks through exactly how mice get into Edmonton homes, the entry points to seal, and the fall prevention steps that actually keep them out, plus when a mouse problem is better handed to a professional mice exterminator in Edmonton. Get the timing right this fall and you can keep mice out all winter long.
Why mice move indoors every fall in Edmonton
As nights cool through September and October, mice look for warmth, food, and shelter, and a heated home is exactly what they want. Our freeze and thaw cycles work against you here too, slowly widening cracks and gaps in foundations and siding year after year, which gives mice more ways in each fall. One piece of good news: our region is largely rat free, so what you are dealing with is house mice and deer mice rather than rats. The catch is that mice breed quickly, so a few that slip in this fall can become a serious problem by mid-winter.
How mice get into your home
A mouse can squeeze through a gap the size of a dime, roughly 6 mm, and they are far better climbers and chewers than most people expect. The entry points we find most often on Edmonton homes include:
- Cracks and gaps in the foundation, especially where it meets the siding
- Openings around utility lines, pipes, and cable entries
- Weep vents, dryer vents, and other exterior vents left uncovered
- Worn seals under garage doors and exterior doors
- Gaps behind decks, steps, and attached structures
How to mouse-proof your Edmonton home this fall
The goal of mouse proofing is simple: close the openings before the cold pushes mice indoors. Work through this checklist while the weather still cooperates:
- Seal gaps with the right materials. Mice chew straight through spray foam and plastic, so pack steel wool or copper mesh into cracks and finish with a quality sealant or caulk.
- Add door sweeps and weatherstripping to exterior doors and the garage, where under-door gaps are a common highway.
- Cover vents. Screen weep vents, dryer vents, and other openings with fine metal mesh that mice cannot gnaw through.
- Cut off the food supply. Store pantry food and pet food in sealed containers, and do not leave pet dishes out overnight.
- Manage the yard. Keep bird seed, compost, and garbage away from the house, trim vegetation back from the foundation, and move woodpiles well clear of exterior walls.
- Declutter storage areas in garages, basements, and sheds so mice have fewer places to hide and nest.
The health reason not to wait
Deer mice, which are common across Alberta, can carry hantavirus, a serious illness that spreads through contact with their droppings, urine, or nesting material. The Government of Alberta advises never sweeping or vacuuming dry droppings, since that can send the virus into the air, and recommends ventilating and wetting the area with disinfectant first. You can read the official guidance on reducing the risk of hantavirus. On top of the health risk, mice contaminate food and chew through wiring, which is a genuine fire hazard, so sealing them out matters well beyond the nuisance.
When mouse-proofing is not enough
If you are already hearing scratching in the walls, finding droppings along baseboards, or actually seeing mice, sealing alone will not solve an active infestation, because you would be trapping some inside. That is when it pays to bring in the pros. Our team locates every entry point, removes the current population, and seals the home so mice cannot return, all with family safe methods. If you are weighing your options, it helps to compare a one-time treatment against ongoing Home Shield coverage before you decide. And if mice are only one of the pests on your list this fall, we handle the full range of pest control Edmonton homeowners rely on.
What rodent control costs
30-Day Rodent Control starting at $449 plus GST, or the 90-Day Rodent Elimination Protocol from $649 plus GST for established infestations
Prefer year round protection? Our Home Shield program starts at $80 per month, and we provide a free quote before any work begins.
Frequently Asked Questions
When do mice come into houses in Edmonton?
Most indoor mouse activity starts in the fall, through September and October, as overnight temperatures drop and mice look for a warm place to overwinter. Sealing entry points before then is the best way to keep them out.
How small a gap can a mouse fit through?
About the size of a dime, or roughly 6 mm. If you can fit a pencil into a gap, a mouse can likely get through it, which is why thorough sealing matters so much.
Are there rats in Edmonton?
No. Alberta maintains one of the few rat free populations in the world, so in the Edmonton area you are almost always dealing with house mice or deer mice, not rats. They still need to be taken seriously, but the approach is different.
Are mouse droppings dangerous to clean up?
They can be, because deer mice can carry hantavirus. Do not sweep or vacuum dry droppings. Ventilate the area, wet the droppings with a disinfectant, wear gloves, and dispose of them carefully, following the Government of Alberta guidance linked above.
Should I handle mice myself or hire a professional?
Prevention and sealing are things every homeowner can do, and they are worth it. But once mice are already inside, professional removal plus exclusion is far more effective than traps alone. Our guide to one-time versus ongoing rodent treatment walks through when each makes sense.
Why Edmonton Homeowners Choose All About Pests for Rodent Control
Plenty of companies will set a few traps and call it a day. Getting mice out and keeping them out for the winter takes more than that, and it is where we are different.
- We seal, not just trap. We find and close the entry points so mice cannot simply return once the traps are gone.
- Family and pet safe. Our treatments are chosen to be safe for your kids and pets once dry.
- Built for Edmonton. We know our local deer mice, our neighbourhoods, and how freeze and thaw opens new gaps each fall.
- Modern inspections. Drone and camera tools help us find entry points and nesting spots others walk right past.
- Same-day service. When mice are already inside, we move fast across Edmonton and the surrounding area.
- A team you can trust. Licensed, insured, and led by a founder with over 20 years in the industry.
- Honest, published pricing. Our price guide means no surprises and no pressure.
- Coverage that lasts. Our work is backed by a service guarantee with scheduled visits and ongoing protection.
A Family Owned Team, Looking Out for Yours
All About Pests was built right here in Edmonton by Kevin and Brooke, and family is the whole reason we do this work. We know that a warm, mouse-free home heading into an Alberta winter is really about the people inside it, which is why we treat every home like our own and make sure the job is done right before the cold sets in.
If mice are already scratching in the walls, or you just want to seal up before the freeze, we are ready to help. Get a free quote today.
Call (780) 306-7704
