Wasp Nest Removal Across the GTA — Fast, Safe, Done Right

Wasp season in the GTA runs from June through September, and every year the calls follow the same pattern. June brings small paper wasp nests under eaves — easy jobs, small colonies. By August, those nests are the size of a basketball and the wasps are aggressive. September is yellowjacket season, when ground nests hit peak population and the colony gets desperate for sugar, swarming around patios, garbage cans, and pop cans at every backyard barbecue in Mississauga.

The three species you will deal with in the GTA: paper wasps build open-comb nests under eaves and porch ceilings. Yellowjackets nest underground or in wall voids — they are the aggressive ones that chase you. Bald-faced hornets build those large grey football-shaped nests in trees and on buildings — they are not technically hornets but they pack the worst sting of the three.

The risk with wasp removal is real. A disturbed nest sends out every wasp at once, and they can sting repeatedly. Yellowjacket nests in wall voids are especially dangerous because the nest is hidden — people find out the hard way when they disturb it. For anyone with a bee sting allergy, a wasp encounter can be life-threatening.

Do not spray a nest with a can from Canadian Tire and hope for the best. A missed spray on a wall-void nest just drives them deeper into the structure. A professional treats the nest at the source and applies residual product to handle returning foragers.