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Pest Control and Exterminator in Guelph, Ontario

Home / Pest Control Guelph

KW Pest Control treats homes, student rentals and businesses in Guelph for wasps, hornets, mice, rats, ants, bed bugs, cockroaches, spiders and fleas. We work in every neighbourhood, from downtown and the Ward to the University of Guelph area and the south end. Call 519-957-1766, Monday to Friday, for a free phone estimate.

Call 519-957-1766 Get a Free Phone Estimate

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

Family sitting together in a field of flowers in Guelph

Guelph neighbourhoods we serve

  • Downtown Guelph, the Ward and Exhibition Park
  • Old University, the University of Guelph area and College Avenue
  • The south end: Westminster Woods, Pine Ridge, Clairfields and Hanlon Creek
  • Kortright Hills, Hanlon and the Preservation Park area
  • The east end: Grange Hill East, Watson and Victoria North
  • The west and north end: Brant, Waverley, Riverside Park and Willow West

We also serve Kitchener, Waterloo and Cambridge.

Wasp and hornet control in Guelph

Guelph is a green city. The Speed and Eramosa rivers, the Arboretum, Riverside Park and the trail system run through almost every neighbourhood, and that means a lot of wasps and hornets. Yellowjackets nest in soffits, wall voids, sheds and the ground. Bald-faced hornets hang large grey paper nests in trees and hedges, often right over a path or a back deck.

We treat and remove wasp and hornet nests from homes, garages, decks and yards across Guelph. Nest removal starts at about $200 before HST, structural nests inside walls or soffits start at about $250, and each additional nest is about $50 to $75 more. If you have honeybees or other small bees, call a local beekeeper first, since they can often collect a swarm alive. See wasp and bee nest removal and hornet nest removal.

Other common pests in Guelph

Mice and rats. Older brick and limestone homes in the Ward, Exhibition Park and Old University have foundations with plenty of gaps, and mice move in each fall. Newer homes in the south end get them through garages and utility lines. Rats show up near the rivers, compost and restaurant bins. We set tamper-resistant bait stations and traps and seal the entry points we find at ground level. See rodent control.

Ants and carpenter ants. Pavement ants come up through basement floors and patio stones in spring. Carpenter ants nest in damp wood in mature neighbourhoods with big trees. See ant control.

Bed bugs. Guelph’s student rentals and apartment buildings turn over every semester, and bed bugs move with the furniture and luggage. Wellington-Dufferin-Guelph Public Health advises acting early and checking second-hand furniture before it comes inside. We treat with Aprehend and give you a prep sheet. See bed bug extermination.

Cockroaches. German cockroaches are mostly a problem in apartment buildings, shared housing and restaurant kitchens. See cockroach extermination.

Spiders and fleas. Spiders build up near the rivers and in basements in late summer. Fleas come home on pets. See spider control and flea extermination.

Pest control for Guelph student rentals and landlords

Landlords and property managers near the University of Guelph see the same cycle every year: new tenants in September, bed bugs or cockroaches by November. We help by confirming the pest with an inspection, treating the affected unit, checking neighbouring units and giving tenants a clear prep list. For buildings with several units, an inspection is required for an exact quote.

How our Guelph pest control works

  1. Free phone estimate. Call 519-957-1766 and tell us what you’re seeing. We’ll identify the likely pest and give you a typical price range.
  2. Inspection. A technician confirms the pest, the source and how it got in.
  3. Treatment. We treat the nest, runway or hiding spots with Health Canada-registered products.
  4. Prevention. We seal ground-level mouse entry points we find and show you what to change around the home.

Pest control prices in Guelph

Prices are the same in Guelph as across our service area. Typical ranges before HST:

  • Wasp or hornet nest: from about $200; structural nests from about $250
  • Ants: about $300 to $430
  • Mice: about $280 to $550; rats about $280 to $430
  • Fleas: about $500
  • Cockroaches: from about $800 for two treatments
  • Bed bugs: about $1,000 to $1,400 or more

See the pest control cost guide for what changes the price.

Commercial pest control in Guelph

We provide commercial pest control for Guelph restaurants and food businesses, offices, retail stores, property managers and multi-unit residential buildings, with visits scheduled during weekday business hours.

Signs you should call an exterminator

  • Wasps flying in and out of a gap in siding, a soffit or a hole in the lawn
  • A grey, football-shaped nest in a tree or hedge near the house
  • Mouse droppings in drawers, cupboards or along basement walls, or scratching in the walls at night
  • Ant trails that come back after store-bought bait, or large black ants indoors in late winter
  • Bites in lines or clusters, blood spots on sheets or dark spots along mattress seams
  • Cockroaches in the kitchen or bathroom, especially in daylight

How to keep pests out of a Guelph home

  • Check eaves, sheds and decks in May and June, when wasp nests are still small.
  • Keep lids on garbage, recycling and green carts, and cover food and drinks outside in late summer.
  • Seal gaps around pipes, vents and garage doors before October.
  • Keep firewood and mulch away from the foundation and fix damp wood around decks and windows.
  • Inspect second-hand furniture and luggage for bed bugs before bringing it inside.

Pest control in Guelph: FAQ

Do you serve all of Guelph?

Yes. We serve every Guelph neighbourhood, including downtown, the Ward, Exhibition Park, Old University, Kortright Hills, Westminster Woods, Clairfields, Grange Hill East, Victoria North, Brant, Waverley and Willow West. We also serve Kitchener, Waterloo and Cambridge. Call 519-957-1766 if you want to check your address.

How much does wasp nest removal cost in Guelph?

Wasp and hornet nest removal starts at about $200 before HST. Structural nests inside walls, soffits or siding start at about $250, and each additional nest at the same visit is about $50 to $75 more. Honeybees are different: call a local beekeeper first, because they can often collect the bees alive.

When is wasp season in Guelph?

Queens start new nests in May, and colonies grow through June and July. Nests are biggest, and wasps are most aggressive, from mid-August through September, when food runs short. Small nests found in late spring or early summer are easier to deal with, so it’s worth checking eaves and sheds early.

Do you treat bed bugs in Guelph student housing?

Yes. We treat bed bugs in student houses and apartments for landlords, property managers and tenants. We confirm the infestation, treat with Aprehend, a Health Canada-registered biopesticide, and give everyone in the unit a prep sheet. Neighbouring units should be inspected too, since that’s where repeat problems often start.

How much does an exterminator cost in Guelph?

Typical ranges before HST are from about $200 for a wasp nest, about $300 to $430 for ants, about $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. Your technician confirms the price before work starts.

Are your treatments safe for kids and pets?

Yes, when the instructions are followed. We use Health Canada-registered products and apply them where pests live, in cracks, voids, locked bait stations and around the outside of the house. Your technician tells you how to prepare, which rooms to avoid and for how long, and what to do with pets and fish tanks.

Book pest control in Guelph

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.

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