Wasp Nest Removal in Toronto

Same-day wasp nest removal in Toronto, done by a licensed technician who knows the difference between a paper wasp you can leave alone and a yellowjacket nest that will send you to the hospital. Most Toronto nests come off in a single visit. A standard outdoor nest runs $250 to $350, and the whole job is usually done in under an hour. If someone in the house is allergic, or the nest is bigger than a softball and near a door, do not touch it. Call and stay back.

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Wasp, hornet, or yellowjacket? How to tell, and which ones sting in swarms

The name matters because the danger changes. In Toronto you are almost always dealing with one of three, and the aggressive ones look nothing like the calm ones once you know what to check.

• Paper wasps build the open, umbrella-shaped nest that hangs under a railing, a soffit, or a deck. You can see the cells from below, like a tiny grey honeycomb. They are the least aggressive of the three and will mostly leave you alone unless you swat at the nest.
• Yellowjackets are the ones that ruin a backyard in August. They are stocky, bright yellow and black, and they nest in the ground, in wall voids, or inside a soffit where you only see a steady stream of them coming and going from one hole. They are defensive, they swarm, and each one can sting many times. This is the nest that puts people in the emergency room.
• Bald-faced hornets build the big grey football-shaped nest hanging in a tree or off the eaves. Black and white, larger than a wasp, and very defensive near the nest. The size is the tell: a hornet nest can hold hundreds.

If the nest is a closed grey ball or the wasps are coming out of a single hole in the ground or wall, treat it as aggressive and keep everyone back. Paper wasps under a rail are the one case where waiting is sometimes fine. Everything else is a call.

When wasps are a Toronto problem (and when the season ends)

Wasps build from June onward, and the nest grows all summer. A May nest is the size of a golf ball with a queen and a few workers. By August that same nest can hold thousands, which is why the calls spike in August and September. The colony is at its biggest and its most defensive right when people are still using the yard.

The good news is the calendar is on your side eventually. Wasps die off with the first hard frost, usually late October in Toronto, and the nest is not reused the next year. If a nest is high up, empty-looking, and it is already November, you can often just leave it. Through the summer, though, an active nest near where people walk is not a wait-and-see problem.

Where the nests hide in Toronto homes

Half the job is finding the nest. In Toronto's housing stock the usual spots are:

• Soffits and eaves. The most common. Yellowjackets slip into a gap in the soffit and build inside, so all you see is wasps entering one corner near the roofline.
• Ground nests. Yellowjackets nest in old rodent burrows, under sheds, and in retaining walls. You find these by the lawn mower, which is exactly the wrong way to find them.
• Wall voids. They get in through a gap around a pipe or a worn brick joint and build inside the wall. You hear them before you see them.
• Sheds, decks, and playsets. Under the deck boards, inside a shed roof, up under the slide. Anywhere dry and sheltered.
• Attic and roof vents. They enter through a vent and build in the attic, which is the worst version because the nest is inside the structure.

A soffit or wall-void nest is the reason we quote a hidden-nest premium. Reaching a nest buried in the structure takes more time and sometimes opening up an access point, and that is real work compared with a nest hanging in plain sight.

Why removing a wasp nest yourself is genuinely dangerous

This is not a job the way cleaning a gutter is a job. Three things go wrong, often at once.

First, wasps swarm to defend the nest, and unlike a bee, a single wasp can sting again and again. Spraying a store can at a yellowjacket nest at dusk and missing the hole gets you a cloud of angry insects and dozens of stings in seconds. Second, most nests are up high, which means you are on a ladder when the swarm comes, and the fall hurts more than the stings. Third, and this is the one that matters most:

The other quiet reason to call: the products that actually work on a wall or soffit nest are registered by Health Canada's Pest Management Regulatory Agency and are meant to be applied to the label by a licensed technician. A hardware-store aerosol will chase the wasps out for an evening and rarely kills the nest inside a void.

How we remove a Toronto wasp nest

1. We locate and identify it. Wasp, hornet, or yellowjacket, and exactly where the nest sits. This decides the approach and the price before we start.
2. We treat the nest directly. For an accessible nest, a registered product straight into the nest, applied to label. For a soffit, wall, or ground nest, we treat the entry point so returning wasps carry it in and the colony dies.
3. We remove or seal. An accessible nest comes down once it is dead. A void nest we leave to die out and then seal the entry so the spot is not reused, because an open cavity invites next year's queen.
4. We stand behind it. If wasp activity returns at the same nest within two months, we come back once at no charge.

Most standard nests are same-day and done in a single visit.

Signs it is time to call

• Wasps streaming in and out of one hole in the ground, a wall, or the soffit.
• A grey football-shaped or closed ball-shaped nest anywhere near the house.
• A nest within reach of a door, a walkway, a patio, or a kid's play area.
• More than a handful of wasps indoors, which can mean a nest inside a wall or attic.
• Anyone in the home with a known sting allergy and any active nest on the property.

Common questions

Reviewed August 2026.

For a nest that cannot wait, or anything with an allergy in the home, see emergency pest control. For how every pest is priced, see the cost page.

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