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Mice and Rat Control in Kitchener-Waterloo

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KW Pest Control gets rid of mice and rats in homes and businesses in Kitchener, Waterloo, Cambridge and Guelph. We place tamper-resistant bait stations and traps, seal the entry points we find at ground level and show you how to keep rodents out. Mouse control runs about $280 to $550 before HST, and a one-year warranty is available.

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Licensed and insured technicians · Free estimates over the phone · Health Canada-registered products · 100% satisfaction guarantee · Residential and commercial

Brown rat on a wooden ledge

Mice and rats in Waterloo Region and Guelph homes

The house mouse is the rodent we deal with most. Mice start moving indoors when fall nights get close to freezing, usually in October, and they keep coming through the winter. A mouse can squeeze through a gap about the size of a dime, so the gaps around a gas line, dryer vent, garage door or stone foundation are more than enough.

Norway rats are less common but harder to live with. They burrow along foundations, under sheds and decks and near compost, bird feeders and garbage, and they turn up more often near the Grand, Speed and Eramosa rivers, rail lines and busy restaurant areas.

Both carry disease. Health Canada and public health agencies warn that rodent droppings and urine can spread illnesses such as salmonella and, rarely in Canada, hantavirus. Rodents also chew wiring, insulation and stored food.

Signs of mice or rats

  • Droppings. Mouse droppings are about the size of a grain of rice. Rat droppings are larger, about the size of a raisin.
  • Noises at night. Scratching or scurrying in walls, ceilings or under floors after dark.
  • Gnaw marks on food packages, baseboards, wires or wood.
  • Nests of shredded paper, insulation or fabric in drawers, behind appliances or in storage boxes.
  • Grease marks along walls and baseboards where rodents run the same path every night.
  • Burrows along the foundation, under decks or beside sheds, which usually point to rats.
  • Pets staring at or pawing at a wall or appliance.

Our blog has more on getting rid of mice in Kitchener homes.

Mice or rats: how to tell the difference

House mouseNorway rat
SizeBody about 7 to 10 cmBody about 18 to 25 cm
DroppingsRice-sized, pointed endsRaisin-sized, blunt ends
Where they liveInside walls, ceilings, cupboardsBurrows outside, basements, sewers
How they get inGaps about the size of a dimeGaps about the size of a quarter
BehaviourCurious, explores new thingsCautious, avoids new objects at first

The difference matters, because rats avoid new bait stations and traps for days. A rat job needs a different setup and often a second visit.

Our mouse and rat control process

  1. Phone estimate. Tell us what you’ve seen and where. The estimate is free.
  2. Inspection. Your technician walks the inside and outside of the home, finds the runways, nests and entry points, and confirms whether you have mice or rats.
  3. Bait stations and traps. We place tamper-resistant, locked bait stations and traps along the runways, in the attic, basement or garage, and outside where needed. Stations are placed out of reach of children and pets.
  4. Ground-level sealing. We seal the entry points we find at ground level during the visit, such as gaps around pipes, vents and the foundation.
  5. Prevention advice. You’ll know what to change: stored food, garbage, bird feeders, firewood and clutter.

A standard mouse treatment is a single visit with no follow-ups. If you want follow-up visits, choose the one-year mouse warranty, which includes them. Rat jobs are priced for one or two visits.

Why traps alone often don’t solve a rodent problem

For every mouse you see, there are usually more. Mice breed quickly, and a pair can turn into dozens within a few months. Store-bought snap traps catch the curious ones but miss the rest, and poison bought at a hardware store is easy to place where pets or children can reach it. Without sealing the entry points, new mice simply move in next fall. Professional rodent control works because it combines the right placement, the right product and the gaps that need closing.

Rodent control for businesses

Restaurants, food plants, offices, warehouses and multi-unit buildings in Kitchener, Waterloo, Cambridge and Guelph need rodent control that holds up to a health inspection. We set up exterior and interior bait stations, check problem areas and work with your staff on sanitation and storage. See commercial pest control.

How much does mouse or rat removal cost?

Typical prices before HST:

ServiceTypical rangeWhat’s included
Mouse controlAbout $280 to $550Single visit at the low end; one-year warranty with follow-up visits at the high end
Rat controlAbout $280 to $430One or two visits

Larger homes, rats, heavy infestations and commercial buildings cost more. Your technician confirms the price before work starts. See the full pest control cost guide.

How to keep mice and rats out

  • Seal gaps around pipes, cables, vents and the foundation with steel wool, metal mesh or caulking.
  • Replace worn door sweeps and garage door seals before October.
  • Store pet food, birdseed and pantry items in sealed glass or metal containers.
  • Keep garbage and green bins sealed, and clean up fallen birdseed.
  • Move firewood, mulch and debris away from the foundation.
  • Trim shrubs and branches that touch the house.

Mice and rat control in Kitchener, Waterloo, Cambridge and Guelph

KW Pest Control serves homes and businesses in four cities: Kitchener, Waterloo, Cambridge and Guelph. That includes downtown Kitchener and Doon, Uptown Waterloo and Beechwood, Galt, Preston and Hespeler in Cambridge, and every Guelph neighbourhood from the Ward to the south end. Not sure we cover your street? Call 519-957-1766 and ask.

Kitchener · Waterloo · Cambridge · Guelph

Mice and rat control: FAQ

How do I know if I have mice or rats?

Look at the droppings. Mouse droppings are about the size of a grain of rice with pointed ends. Rat droppings are about the size of a raisin with blunt ends. Mice usually nest inside walls and cupboards, while rats often burrow outside along the foundation, under decks or beside sheds.

Are your bait stations safe around kids and pets?

Our bait stations are locked and tamper-resistant, so children and pets can’t reach the bait, and we place them out of the way along rodent runways. We use Health Canada-registered products, and your technician will explain where each station is and what to watch for if you have a dog or cat.

How long does it take to get rid of mice?

Most mouse problems settle within a few weeks of treatment, once the mice in the home have found the bait and the ground-level entry points are sealed. Larger infestations, attached homes and older stone foundations can take longer. If mice keep coming back, the one-year warranty with follow-up visits is the best option.

Do you seal entry points?

Yes. Our technicians seal the entry points they find at ground level during the visit, such as gaps around pipes, vents and the foundation. Higher gaps, rooflines and major repairs aren’t part of a standard treatment. Your technician will point out anything else you should have repaired.

Do you offer follow-up visits?

A standard mouse treatment is a single visit with no follow-ups. If you want follow-up visits, choose the optional one-year mouse warranty, which includes them and is priced at the high end of the mouse range. Rat control is priced for one or two visits depending on the job.

Why do I get mice every fall?

Mice move indoors when outdoor temperatures drop, usually starting in October in Kitchener-Waterloo and Guelph. They follow warm air and food smells to gaps around pipes, vents, garages and foundations. Sealing those ground-level gaps in late summer and early fall is the best way to keep them out.

How much does mouse removal cost?

Mouse control typically costs about $280 to $550 before HST. A single visit is at the low end of the range, and the one-year warranty with follow-up visits is at the high end. Rat control is about $280 to $430. Your technician confirms the price before work starts.

Get rid of mice and rats. Call KW Pest Control.

Call 519-957-1766 and tell us what you’re seeing. Estimates over the phone are free, and an inspection is required for an exact quote on larger jobs. The office is open Monday to Friday, 8:30 a.m. to 5 p.m.; leave a message after hours and we’ll call you back the next business day.

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