Wasps
Safe, professional wasp nest removal for Montreal homes and businesses
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Identification Snapshot
| Colour | Yellow and black banding (yellowjackets), or brown with yellow markings (paper wasps) |
| Size | 1.2–2.5 cm |
| Description | Narrow “wasp waist,” smooth body, papery grey or tan nests with visible hexagonal cells |
How to Identify Wasps
The two species most commonly encountered in the Montreal area are paper wasps and yellowjackets. Paper wasps are slender, brownish with yellow markings, and build distinctive open, umbrella-shaped nests with visible hexagonal cells, often tucked under eaves, deck railings, or in sheds. Yellowjackets are more compact with bold yellow-and-black banding and build enclosed, papery nests that can be underground, in wall voids, or hanging from structures.
Key Signs of a Wasp Nest
- Visible nest: grey or tan papery material with a honeycomb-like structure, under eaves, in trees, attics, wall voids, or below ground
- Increased wasp activity: a steady stream of wasps flying in and out of one location
- A nest that’s growing quickly: wasp colonies expand rapidly through the summer
- Wasps around garbage or food areas: especially outdoor eating areas in late summer
- Buzzing or rustling sounds: coming from wall voids or attic spaces
- Chewed wood fibres: wasps chew wood to build their papery nests
What to Do If You Find a Wasp Nest
Do
- Keep a safe distance and avoid disturbing the nest
- Warn children, pets, and neighbours to stay clear
- Cover food and drinks when eating outdoors
- Note the nest’s location and approximate size
- Call a licensed professional for removal
Don’t
- Attempt to knock down or spray a nest yourself
- Seal what looks like an entry point without confirming the nest location first
- Approach a nest at night with a flashlight as a DIY method
- Ignore a small nest early in the season assuming it will stay small
How to Prevent Wasps
- Seal cracks and gaps around eaves, soffits, and siding
- Keep garbage and recycling bins tightly closed, especially in summer
- Cover sugary drinks and food when dining outdoors
- Inspect eaves, sheds, and playground structures in spring
- Reduce standing water and overly dense vegetation near the house
- Have a professional inspection if you had wasp activity the previous year
Habitat, Diet & Behaviour
Wasp colonies are seasonal in this climate: a single fertilized queen survives the winter and starts a new nest each spring, so nests don’t carry over from year to year, though the same favourable location might be reused. Colonies grow steadily through the summer, reaching peak size and aggression in late summer as food becomes scarcer. Wasps are predatory earlier in the season, feeding on other insects, but by late summer they shift toward scavenging, which is when most human encounters and stings happen.
Frequently Asked Questions
How can I tell a wasp nest from a bee hive?
Wasp nests are made of a papery, grey or tan material with visible hexagonal cells. Bee hives, particularly from honeybees, tend to have a waxy, layered comb structure and a different, deeper hum.
Why do wasps seem more aggressive in late summer?
As natural food sources become scarcer, wasp colonies shift toward foraging for sugars, putting them in more contact with people, and colonies are at their largest at this point in the season.
Is it safe to spray a nest myself?
It’s not recommended. Off-the-shelf sprays often don’t reach the full nest, and disturbed wasps can swarm and sting in numbers.
What should I do if someone is stung?
Most stings cause localized pain and swelling manageable with a cold compress; if someone shows signs of a severe allergic reaction, seek emergency medical attention immediately.
How does Optima remove a wasp nest safely?
We assess the nest location and species, then use appropriate protective equipment and treatment methods to remove the nest with minimal risk to your household.
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Client Reviews
Real feedback from Optima Extermination customers across Montreal.
“What an amazing experience with Optima Extermination! The team was professional, knowledgeable, punctual, and incredibly thorough. They took the time to explain everything clearly, answered all of our questions, and made the entire process easy and stress-free. As soon as I called for the service, they were at my door the next morning!”
— Leah D.
“Incredible service from Optima! I called on Sunday morning and by mid afternoon the technician was here to deal with my large wasp infestation. Not only did he take care of the problem, he reassured me that he would come back promptly if I needed further assistance. I highly recommend this company.”
— Dale M.
“We had a great experience with this exterminator. The service was excellent, professional, and reliable. They took the time to explain the problem, provided helpful advice, and made sure we understood the best steps to take. Highly recommended.”
— Vanessa R.
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— Mel DS.
“My neighbor had a bed bug problem. I called a few extermination companies for my condo as well. In the end, I chose Optima Extermination, and it turned out to be a great choice. The welcome was very warm, the work started right away, and the products used proved very effective. What surprised me most was how friendly and attentive Mr. Gil and his team were, during and after the work.”
— Thanh N.
Residential
Found a wasp nest near your home? Don’t risk a DIY removal — we’ll handle it safely.
Commercial
Wasp activity near entrances or outdoor seating can be a liability. Get a professional removal plan.
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