House Mouse Pest Control Services
Fast, eco-conscious removal for house mice nesting in your home or business, backed by our satisfaction guarantee.
- Thorough Inspection & Entry Point Identification
- Safer, Targeted Removal & Exclusion
- Long-Term Prevention Solutions
What Is a House Mouse?
The house mouse is one of the most common rodents found in Ontario homes and businesses, recognized by its dusty gray fur, cream-coloured belly, and pointed muzzle. Originally from Central Asia, house mice now live across Canada and adapt quickly to almost any indoor environment. A single female can produce up to 35 young a year, which is why a small mouse problem can turn into a full infestation within weeks if it goes untreated.
How to Identify a House Mouse
| Colour | Size | Legs | Antennae | Shape | Region |
|---|---|---|---|---|---|
| Dusty gray, cream belly | 2.5–3.75″ long (tail 2.75–4″) | 4 | No | Round | Found throughout Canada |
House mice have a pointed muzzle, large ears with light hair, and a round, compact body. Fur colour ranges from light brown to dark gray depending on location, always with a lighter, cream-coloured belly. Their tail is often longer than their body.
Signs You Have a House Mouse Problem
- Small, rod-shaped droppings, about 1/8 to 1/4 inch long, near food or along baseboards
- Gnaw marks on food packaging, wiring, or wood
- Oily rub marks along walls and baseboards where mice repeatedly travel
- Scratching or scurrying sounds in walls, ceilings, or cabinets, especially at night
- Nests built from shredded paper, fabric, or insulation in hidden corners
- A strong, musky odour where mouse activity is heavy
- Seeing an actual mouse, especially during the day, which often signals a larger population hiding nearby
Keeping Mice Out of Your Home
- Install door sweeps on exterior doors and repair damaged screens.
- Screen vents and openings to chimneys.
- Make sure all holes larger than a dime and gaps wider than a pencil in your home are sealed with silicone-based caulk, steel wool, or other construction material.
- Seal cracks and holes on the outside of the home, including areas where utilities and pipes enter the home, using caulk, steel wool or a combination of both.
- Store food in airtight containers and dispose of garbage regularly.
- Keep attics, basements and crawl spaces well ventilated and dry.
- Replace loose mortar and weather stripping around the basement foundation and windows.
- Eliminate all moisture sites, including leaking pipes and clogged drains that provide the perfect breeding site for pests.
- Inspect items such as boxes, grocery bags and other packages brought into the home.
- Store firewood at least 20 feet away from the house and keep shrubbery trimmed and cut back from the house.
Health & Property Risks of House Mice
Contamination
Droppings and urine can contaminate food, countertops, and storage areas, and are linked to Salmonella and other bacteria
Allergens
Mouse dander, droppings, and urine can trigger asthma and allergic reactions, especially in children
Structural Damage
Constant gnawing can damage wiring, insulation, drywall, and stored belongings, and chewed wiring is a recognized fire risk *(general pest-control knowledge, not site-sourced)*
Secondary Pests
Mice can carry fleas and mites into a home, adding a second pest problem on top of the first
Rapid Spread
A small number of mice can multiply into a much larger infestation within weeks if left untreated
Our House Mice Removal Process
Step 1. Consultation and Inspection
A licensed technician inspects your property to locate entry points, nesting areas, and signs of active mouse activity, from droppings to gnaw marks.
Step 2. Full-Site Inspection Report
You'll get a clear summary of what we found: entry points, droppings, nesting locations, and how widespread the activity appears to be.
Step 3. Custom Pest Control Action Plan
We build a treatment plan around trapping, baiting, and exclusion, tailored to how mice are getting in and where they're nesting.
Step 4. Putting Your Plan Into Action
We remove existing mice and seal the entry points they used to get in, so new mice can't follow the same path.
Step 5. Guidance on Staying Pest-Free
We confirm activity has stopped and provide you with a list of steps you can take to prevent re-infestation.
Why Choose GreenLeaf?
Eco-Friendly
Methods
Science-based treatments with proven, maximal effectiveness and minimal impact that are safer for your family, pets, and the environment.
100% Satisfaction Guarantee
Your peace of mind is our priority. We back our work with a 100% satisfaction guarantee.
Trusted Since
1999
We’re a team of licensed, experienced technicians proudly serving homeowners and businesses across the GTA and Southern Ontario since 1999.
Customized Treatment Plans
We identify current and potential infestations based on your property’s characteristics and location to design a treatment plan that keeps you protected.
The GreenLeaf Pest Control Home Protection Plan
For businesses and homeowners dealing with persistent or recurring pest issues, our Home Protection Plan (HPP) offers a long-term solution. It begins with an intensive first visit to resolve any immediate infestations, followed by scheduled inspections and responsive service calls throughout the year, anytime pests reappear.
Learn More About Our Home Protection Plan
What Our Customers Say
Get Help With House Mice Today
Hearing scratching in the walls or finding droppings in the pantry? Contact GreenLeaf today for a free estimate and fast, safer removal solutions.
Frequently Asked House Mouse Removal Questions
What attracts mice to a home?
Mice are drawn to easy food, warmth, and shelter, especially in fall as temperatures drop outside. Open food storage, pet food left out, and cluttered areas like garages and basements all make a property more appealing. Reducing these factors won’t guarantee mice stay away, but it does make your home a less attractive target than the one next door.
How do mice get into a house?
Mice can squeeze through gaps as small as a dime, so they typically get in through unsealed vents, gaps around pipes and utility lines, cracks in the foundation, or spaces under doors. Once one entry point is found, mice tend to keep using it, which is why sealing gaps is a core part of both removal and prevention.
Are mice dangerous? What diseases can they spread?
Mice can pose a real health risk. Their droppings and urine can carry salmonella and other bacteria, and can trigger allergies or asthma, particularly in children. They can also bring fleas and mites into a home. Beyond health concerns, their constant gnawing can damage wiring, insulation, and stored belongings, so an infestation is worth addressing quickly rather than waiting.
What's the fastest way to get rid of mice?
A combination of trapping, sealing entry points, and removing what’s attracting them works faster than any single method on its own. Traps alone can catch individual mice but won’t stop new ones from getting in, and sealing alone won’t remove mice already inside. Professional treatment addresses both at the same time, which is why it typically resolves an infestation faster than DIY methods alone.
Do mousetraps and store-bought bait actually work?
They can catch or kill individual mice, but a mouse infestation is rarely just one or two mice. A female can produce up to 35 young a year, so traps alone often can’t keep pace. Store-bought baits also carry risks around placement near children or pets. For a full infestation, professional trapping combined with sealing entry points gets ahead of the problem instead of just managing it.
How much does mouse removal cost?
Cost depends on the size of the infestation and how many entry points need to be sealed. A single trapped mouse costs less to resolve than an established infestation with multiple access points. We provide a free, no-obligation estimate after an inspection so you know the cost upfront.
Are your treatments safe for pets and children?
Yes. We use low-impact, targeted methods and place any bait or traps carefully, away from where pets and children have access. Our licensed technicians follow strict safety protocols on every visit, so your family is protected throughout the process.
Do you offer ongoing mouse prevention?
Yes, through our Home Protection Plan. It includes scheduled visits and inspections throughout the year, so new entry points and returning activity get caught early instead of turning into a full infestation. It’s a good fit for older homes or properties with a history of rodent activity.
Do you guarantee your mouse removal service?
Yes. Every job is backed by the GreenLeaf 100% Satisfaction Guarantee. If activity returns after treatment, we’ll come back and address it at no additional cost.
