
KW Pest Control is a local exterminator for homes and businesses in Kitchener, Waterloo, Cambridge and Guelph. We get rid of mice, rats, wasps, hornets, ants, bed bugs, cockroaches, spiders, fleas and flies. Estimates over the phone are free, prices are published as clear ranges, and our office is open Monday to Friday, 8:30 a.m. to 5 p.m.
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Find your city: Kitchener · Waterloo · Cambridge · Guelph
Licensed and insured technicians · Free estimates over the phone · Health Canada-registered products · 100% satisfaction guarantee · Residential and commercial
Pests in Kitchener-Waterloo follow the calendar. Ants wake up in April and May, wasps build through July and turn aggressive in late August, and mice start looking for a warm basement the first cold week of October. Bed bugs and German cockroaches ignore the seasons. They ride in on luggage, second-hand furniture and moving boxes, and they spread through shared walls in apartments, student rentals and townhouses.
The housing here shapes the job. Century brick homes near downtown Kitchener, Uptown Waterloo, Galt and the Ward in Guelph have stone foundations and gaps that let mice in. Newer subdivisions in Doon, Laurelwood, Hespeler and Guelph’s south end back onto green space, so ants, wasps and spiders come in from the edges. Student housing near the University of Waterloo, Wilfrid Laurier, Conestoga and the University of Guelph turns over every term, and that’s how bed bugs move.
Our technicians are licensed exterminators. We use an Integrated Pest Management (IPM) approach: identify the pest, find out why it’s there, treat the source with Health Canada-registered products and fix what let it in. That usually means bait stations in the right places, a treated nest or a sealed gap, not a spray across every room.
Most home treatments fall into clear price ranges before HST. A wasp nest starts at about $200. Ant treatments run about $300 to $430, mouse control about $280 to $550, and flea treatment about $500. Cockroach treatment starts at about $800 for two visits, and bed bug treatment runs about $1,000 to $1,400 or more by number of bedrooms. Your technician confirms the price before work starts. See the full pest control cost guide for every service.
We state our warranties plainly, and only where they apply:
Every job is backed by our satisfaction guarantee: if something isn’t right, call us and we’ll make it right.
Homeowners make up most of our calls, but we also look after businesses. Restaurants and food businesses need treatment that fits around service and inspections. Property managers need a contractor who can handle one unit without upsetting the whole building. Offices and stores need discreet visits. See commercial pest control for how we work with businesses in Kitchener, Waterloo, Cambridge and Guelph.
Yes, when it’s done properly. We use products registered by Health Canada’s Pest Management Regulatory Agency and apply them where pests live: in cracks and voids, in locked bait stations and around the outside of the house, not across floors where children and pets play. Before treatment your technician tells you how to prepare, which rooms to stay out of and for how long, and what to do with pet bowls, toys and fish tanks.
We serve homes and businesses in four cities: Kitchener, Waterloo, Cambridge and Guelph. That includes every neighbourhood in each city, from downtown Kitchener and Uptown Waterloo to Galt, Preston, Hespeler and the south end of Guelph. If you’re not sure we cover your address, call 519-957-1766 and we’ll tell you.
Our office is open Monday to Friday, 8:30 a.m. to 5 p.m., and appointments are booked during those hours. If you call in the evening or on a weekend, leave a message with your name, number and the pest you’re seeing, and we’ll call you back the next business day.
Estimates over the phone are free. Describe what you’re seeing, where it is and how long it’s been going on, and we’ll give you a price range. For larger or less clear-cut jobs, such as bed bugs in a multi-unit building or commercial work, an inspection is required for an exact quote.
It depends on the pest and the size of the job. Typical ranges before HST are about $200 and up for a wasp nest, $300 to $430 for ants, $280 to $550 for mice, about $500 for fleas, from about $800 for cockroaches and about $1,000 to $1,400 or more for bed bugs.
No. We treat bed bugs with Aprehend, a biopesticide made from fungal spores and registered by Health Canada. It’s sprayed in narrow bands where bed bugs travel, and they pick up the spores as they cross. Prep is lighter than many treatments, and our bed bug prep sheet walks you through it.
Yes. Our technicians seal the entry points they find at ground level during the visit, such as gaps around pipes, vents and the foundation. Follow-up visits aren’t included with a standard treatment, but they are part of our optional one-year mouse warranty, which is the best choice if mice keep coming back.
Yes. We work with restaurants and food businesses, offices, retail stores, property managers and multi-unit residential buildings in Kitchener, Waterloo, Cambridge and Guelph. Commercial work starts with an inspection, which is required for an exact quote, and we schedule visits around your business wherever we can.
If you have honeybees or other small bees, call a local beekeeper first. A beekeeper can often collect a honeybee swarm alive. If a beekeeper can’t help, or the bees are inside a wall, call us and we’ll talk through the options. Wasps, yellowjackets and hornets are a different job, and we remove those nests every summer.
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.
Booked for bed bug treatment? Use our bed bug prep sheet to get ready.

KW Pest Control provides residential and commercial pest control in Kitchener, Waterloo, Cambridge and Guelph, for mice and rats, wasps and hornets, ants, bed bugs, cockroaches, spiders, fleas, flies, centipedes and moths. Call 519-957-1766 for a free phone estimate, or use our contact form and we’ll get back to you during office hours.
Hours: Monday to Friday, 8:30 a.m. to 5 p.m.
Leave a message and we’ll call you back the next business day.
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