London Wildlife – Wildlife Removal London, Ontario
Serving London, Ontario · Mon–Fri 8:30 a.m.–5 p.m.
Mice and Rat Control in London, Ontario
London Wildlife stops mice and rats getting into homes and businesses in London, Ontario. We inspect the whole building, find every gap rodents are using, and seal them with chew-proof metal and heavy-gauge screening so new rodents can’t get in. For mice and rats already inside, we typically use professional rodent bait, or traps if you prefer. Our exclusion work comes with a 5-year guarantee on the entry points we seal. Call 226-271-5510.
Signs You Have Mice or Rats
Mice and rats are good at staying out of sight. Most people find the signs before they see the animal:
- Droppings in cupboards, drawers, along baseboards, behind appliances or in the garage
- Scratching or scurrying in walls, ceilings or under floors, mostly at night
- Chewed food packages, bags of birdseed or pet food, or gnawed wood and plastic
- Shredded paper, fabric or insulation used as nesting material
- Grease marks along walls and pipes where rodents travel the same path
- A musky, stale smell in closed spaces such as cabinets or a crawl space
- Burrows along the foundation, under decks or beside a garden shed (usually rats)
- Pets staring at walls or pawing at the same spot
If you see one mouse in the daytime, there are usually more you haven’t seen.
Mice or Rats: How to Tell the Difference
Knowing which rodent you have changes how the job is done.
| Sign | House mouse | Norway rat |
|---|---|---|
| Size | Small and slender, body about the length of your thumb | Large and heavy, body about the length of your hand or longer |
| Droppings | Small, like grains of rice | Larger, like a raisin or olive pit |
| Where they live | Inside walls, cupboards, attics and stored boxes | Burrows outside, basements, garages, sewers and crawl spaces |
| Gap they can fit through | About the width of a pencil | About the width of a large coin |
| Noise | Light scratching | Heavier scratching and gnawing |
Both can live in London homes year-round once they’re inside. Rats tend to stay low, near the ground and water, while mice will climb into walls and attics.
How Mice and Rats Get Into London Homes
Rodents don’t need a big hole. Mice can squeeze through a gap about the width of a pencil, and rats through a gap about the size of a large coin. Common entry points on London homes:
- Gaps around pipes, gas lines, cable and air-conditioning lines where they enter the wall
- Worn or missing garage door seals
- Cracks in the foundation and gaps where the siding meets the foundation
- Dryer vents and exhaust vents without guards
- Weep holes and gaps in brick
- Soffit corners and roof-line gaps (mice climb)
- Gaps under doors, around basement windows and window wells
- Openings around decks and porches that lead under the house
Older homes near downtown, in Old North, Old South and Wortley Village, often have more gaps in old brick, stone foundations and around original windows. Newer homes aren’t immune: gaps around utility lines and garage doors are common in every neighbourhood.
When Rodents Move In
Mice and rats can get in any time of year, but fall is the busiest season in London. As nights get colder, from about September to November, mice look for warm shelter and food. That’s when calls about scratching in walls and droppings in the kitchen pick up. Sealing a home before fall is the best way to stop it.
How Our Mice and Rat Control Works
1. Inspection. We inspect the outside of the building from the foundation to the roof line, plus the garage, attic and crawl space where we can reach them. We look for droppings, rub marks, burrows and every gap a rodent could use. Every home is different, so we inspect first and give you an exact quote before any work starts.
2. Identify the rodent. Droppings, tracks and damage tell us whether it’s mice, rats or both, which shapes the rest of the job.
3. Exclusion and sealing. We seal entry points with chew-proof metal and heavy-gauge screening that rodents can’t gnaw through. Vents get metal guards. Gaps around pipes and lines are closed. Burrows along the foundation are dealt with and the area is screened where needed.
4. Mice and rats already inside. Sealing stops new rodents, but the ones already inside still have to be dealt with. We typically use professional rodent bait (rodenticide) because it’s very effective, and it’s always your choice. If you’d rather not use bait, traps are the alternative, but they have to be checked and emptied.
5. Follow-up visit (included). We come back to check that the sealing is holding and look for any sign of new activity.
6. 5-year guarantee. Our exclusion work comes with a 5-year guarantee: rodents won’t get through any of the work we did. The guarantee covers only the entry points we sealed. It doesn’t cover new openings from other causes, such as roof damage or shingles torn off later.
Rodent Bait or Traps for Mice Already Inside
For mice and rats that are already in the home, you have two options, and the choice is yours:
- Professional rodent bait (rodenticide). This is what we typically use, because it’s very effective at clearing the rodents already inside.
- Traps. If you’d rather not use bait, we can use traps instead. Traps have to be checked and emptied, so they take more follow-up.
We use rodent bait only for mice and rats already inside the home, and only if you agree to it. Our wildlife removal (raccoons, squirrels, bats, skunks, opossums and birds) stays humane and chemical-free.
Why Sealing Still Matters Most
Bait and traps deal with the rodents that are inside now. They don’t stop the next ones. As long as the gaps stay open, new mice will keep finding their way in, especially every fall.
Exclusion fixes the cause. Once every gap is sealed with materials rodents can’t chew through, new mice and rats can’t get in. That’s why our work is built around finding and sealing entry points, and why we can back it with a guarantee.
Health and Damage Risks
Mice and rats carry bacteria and parasites, and their droppings and urine can contaminate food, counters and stored items. Rodents chew constantly to keep their teeth short, and they damage:
- Electrical wiring, which is a fire risk
- Insulation, which they tunnel through and soil
- Stored items, boxes and clothing in basements and garages
- Wood, drywall and plastic, including water lines
Wear gloves when cleaning up droppings, don’t sweep or vacuum them dry, and wash your hands well afterwards. If droppings have built up in an attic, we offer clean-up. See Attic Clean-Up.
What You Can Do Now
- Store food, pet food and birdseed in sealed metal or hard plastic containers.
- Keep garbage and compost bins closed and away from the house.
- Trim shrubs and vines back from the foundation and siding.
- Don’t stack firewood against the house.
- Fix leaking taps and pipes, since rats need water.
- Note where you see droppings. It helps us find the entry points faster.
How Much Does Mice and Rat Control Cost in London?
Most wildlife removal jobs in London cost about $700 to $2,000+, plus HST, and rodent exclusion follows the same pricing. A small home with a few gaps can cost less. Large homes with many entry points, rats burrowing along the foundation, or droppings clean-up cost more. Every home is different, so we inspect first and give you an exact quote.
What changes the price:
- The size of the building and how many entry points need sealing
- Whether it’s mice, rats or both
- Roof-line work, since mice climb to soffits and vents
- Foundation and burrow work for rats
- Droppings clean-up, if needed
The follow-up visit is included, and the sealing is backed by our 5-year guarantee. See the full price guide: Wildlife Removal Cost in London.
Mice and Rat Control Across London, Ontario
We serve homes and businesses throughout the City of London, Ontario, including Byron, Masonville, Hyde Park, Lambeth, Old North, Old South, Westmount, Wortley Village, Oakridge, White Oaks and Argyle. We work within London only. Call 226-271-5510, Monday to Friday, 8:30 a.m. to 5 p.m.
Mice and Rat Control FAQs
How do I know if I have mice or rats?
Look at the droppings. Mouse droppings are small, about the size of a grain of rice. Rat droppings are much larger, about the size of a raisin. Rats also dig burrows along foundations and under decks, while mice usually nest inside walls and cupboards.
How small a hole can a mouse get through?
A mouse can squeeze through a gap about the width of a pencil. A rat can fit through a gap about the size of a large coin. That’s why we seal small gaps around pipes, vents and garage doors, not just obvious holes.
Why do I get mice every fall?
As nights get colder, mice look for warm shelter and food. If the gaps they used last year are still open, new mice will find them. Sealing those gaps before fall stops the cycle.
Can I seal the gaps myself?
You can close obvious gaps, but foam and caulk alone won’t stop rodents, because they chew through them. Gaps need chew-proof metal or heavy-gauge screening, and the hardest ones to find are often at the roof line, behind siding or around utility lines. An inspection finds every gap at once.
Will the mice come back after you seal the house?
Not through the entry points we seal. Our exclusion work comes with a 5-year guarantee on the entry points we seal. It doesn’t cover new openings from other causes, such as roof damage.
Are mice droppings dangerous?
Mouse and rat droppings and urine can carry bacteria and contaminate food and surfaces. Wear gloves, don’t sweep or vacuum droppings dry, and wash your hands well. We offer clean-up for heavy droppings in attics.
What about the mice already inside? Do you use poison?
For mice and rats already inside the home, we typically use professional rodent bait (rodenticide), because it’s very effective. It’s always your choice. If you’d rather not use bait, traps are the alternative, but they need to be checked and emptied. We also seal the entry points so new rodents can’t get in.
Do you handle rats in London?
Yes. We seal homes and businesses against both mice and rats, including garages, crawl spaces and foundations where Norway rats burrow.
How much does mice and rat control cost in London, Ontario?
Most wildlife removal jobs in London cost about $700 to $2,000+, plus HST, and rodent exclusion follows the same pricing. Smaller homes with few gaps can cost less. Every home is different, so we inspect first and give you an exact quote.
Do you work on commercial buildings?
Yes. We inspect and seal commercial buildings, offices and rentals in London against mice and rats.
Book Mice and Rat Control in London
Hearing scratching in the walls or finding droppings? Call London Wildlife at 226-271-5510 or request a quote online. We’re open Monday to Friday, 8:30 a.m. to 5 p.m.