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24 companies listed · 8 in St. Catharines · 4 open 24/7 · 18 open weekends · 20 rated 4.5+
Data verified October 18, 2026
Listed for homeowners in and around St. Catharines, ON, these 24 companies handle insect and rodent problems in homes. The species each company treats, its licensing claims and hours are taken from its own site, with ratings and quoted comments from public reviews.
8 of the 24 companies we list are based in St. Catharines; the other 16 serve St. Catharines from towns including Niagara Falls (17 km), Grimsby (26 km) and Stoney Creek (42 km). The companies on this page are rated from 3.7 to 5.0 across 2,360 reviews; 10 have 50 or more reviews and 20 are rated 4.5 or higher. When customers rate these companies on specific qualities, they most often praise professionalism (94%), responsiveness (85%) and quality (82%). The topics that come up most in reviews of the companies on this page are "price" and "knowledge". 4 are open around the clock; 18 are open on Saturdays and 11 on Sundays. 7 show a licence on their websites. 9 have ten or more years of experience, the longest 20 years. 4 offer emergency call-outs; 13 give free estimates; 5 are family- or locally-owned and 1 lists coupons or special offers. We have a website on file for 18 of the companies on this page; 17 publish a contact page; 14 list a public email and 3 take bookings online. We count these figures across the companies on this page; distances are straight-line, and hours and prices change, so confirm the details with the company before you book.
Around-the-clock availability is stated by 4 of the 24 listings here. A wasp nest at the front step or a rat indoors justifies the after-hours rate. Everything else is dealt with better in daylight, when the technician can see into the basement and along the foundation.
