
WASP EXTERMINATOR - MONTREAL & SOUTH SHORE
About Wasps (Vespidae)
Activity
Wasps are most active during warmer months, with their presence becoming more noticeable from late spring through early autumn. Their behavior is strongly influenced by temperature and sunlight, and they tend to be particularly aggressive in late summer when food becomes scarce and colony defense intensifies. Unlike ants, most wasps are diurnal, spending the day foraging for food and returning to their nests at dusk. In regions like Quebec, wasp activity slows dramatically once cooler weather sets in, often disappearing entirely with the first frost.
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Diet
Wasps are not picky eaters. Many species are predators, feeding on other insects such as caterpillars, flies, and spiders, which makes them helpful in controlling certain pests. Others are drawn to sweet substances like ripe fruit, sugary drinks, and nectar. During the height of summer, they may scavenge from garbage bins or picnic tables, attracted by both protein and sugar. Adult wasps often seek out sweet liquids, while larvae inside the nest are fed protein-based meals brought back by the workers.
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Size
The size of wasps varies widely depending on the species. Most common wasps measure between 10 and 25 millimeters in length. Yellowjackets and paper wasps, for example, are medium-sized and fast-moving, while larger species like hornets can reach up to 30 millimeters. Queens are typically larger than the worker wasps and play a key role in establishing and expanding the nest during the warmer season.
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Habitat in Quebec
Wasps thrive in both natural and urban settings across Quebec. They often build nests in areas that provide warmth, shelter, and access to food.
Inside buildings: Wasps may enter attics, wall voids, sheds, or garages, especially if entry points like vents or small cracks are present. Once inside, they can become highly territorial, especially if their nest is disturbed. Indoor nests are often hidden and harder to detect until the wasps become a visible problem.
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Outside structures
Wasps often build nests under eaves, in shrubs, trees, or attached to the underside of decks and balconies. Some create suspended nests in open spaces, while others prefer concealed spots like hollow tree trunks or abandoned burrows. Yellowjackets may also build underground nests that are difficult to detect until disturbed.
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Nest Preferences
Different species choose different nesting materials and locations. Paper wasps create open-comb nests shaped like umbrellas, while hornets form large enclosed nests with a papery outer shell. These nests are made from chewed wood fibers mixed with saliva. The location of the nest can determine how aggressive the colony becomes.
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Common Wasps in the Montreal Area
Yellowjackets (Vespula spp.): These wasps are highly aggressive and known for their painful stings. They are frequently seen around garbage cans, sugary drinks, and outdoor gatherings. Yellowjackets are fast to defend their nests and may sting multiple times when provoked.
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Paper Wasps (Polistes spp.): Paper wasps are slimmer and less aggressive but will still sting if their nest is disturbed. Their nests are typically built under overhangs or on the sides of buildings. They are beneficial predators in gardens but pose risks when nesting close to people.
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Bald-Faced Hornets (Dolichovespula maculata): Despite the name, these are a type of yellowjacket. They build large aerial nests and are extremely protective. Their stings are powerful and often occur in swarms if the nest is threatened.
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Wasps can be difficult to manage once a nest is established. Their ability to build in hidden or high places, combined with their defensive nature, makes professional removal essential in many cases. Prevention and early detection are the most effective strategies to reduce the risk of wasp infestations.
Signs of a Wasp Infestation
Spotting a Wasp Infestation Early Can Save You from a Bigger Problem
Here are some of the most common signs that wasps may have settled near or inside your property:
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1. Frequent Wasp Sightings Indoors or Around the Property
If wasps are regularly flying around windows, entryways, patios, or indoor areas, it likely means there’s a nest nearby. Occasional sightings might not be serious, but consistent activity should not be ignored.
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2. Increased Wasp Activity in Specific Areas
Pay attention to areas where wasps gather repeatedly, such as corners of roofs, under eaves, sheds, attics, or even wall voids. Persistent movement in the same location often means wasps have built or are building a nest.
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3. Visible Nests in or Around the Structure
Wasp nests can appear in sheltered outdoor spots or inside hidden cavities. They are usually shaped like a rounded paper ball and can be found in trees, under porch roofs, inside attics, or tucked into wall cavities. Some nests remain hidden until the colony grows large enough to cause concern.
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4. Buzzing or Tapping Sounds Behind Walls or Ceilings
In quieter environments, you might hear a faint buzzing, rustling, or tapping sound from inside walls or ceilings. These sounds can be a clue that wasps are nesting out of sight, especially if the activity grows louder over time.
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5. Aggressive Behavior Near Certain Spots
Wasps become protective when their nest is threatened. If you notice increased aggression or swarming near a particular part of your yard or building, it’s a strong sign their nest is close by.
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6. Small Holes or Gaps Being Used for Entry
Wasps often access indoor spaces through small cracks in siding, vents, or gaps near window frames. Watch for insects flying in and out of these entry points, especially during the warmer months.
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7. Unusual Accumulation of Nesting Material
Some wasp species may leave behind pieces of chewed wood or plant fibers used to build their nests. These materials can appear as light, flaky debris near nest entrances or construction zones.
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8. Presence of Dead Wasps Indoors
Finding multiple dead wasps around windows, light fixtures, or along the floor can suggest that a colony is active inside the home or very close to it. This is especially true if it happens frequently.
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9. Pets or Children Reacting to Certain Areas
Sometimes, pets or young children will avoid or become distressed around certain areas where wasps are active. Their reactions might point to a nest you haven't noticed yet.
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10. Stings Occurring Without Provocation
Unexpected wasp stings, especially when no visible nest is present, often indicate a hidden colony. A sudden increase in stings or near-encounters usually means the wasps are defending a space you’re unknowingly approaching too often.
Understanding Wasps
Wasps are a common presence in Quebec and easily adapt to different environments, including gardens, rooftops, attics, and wall voids. Their aggressive behavior, especially when defending their nests, makes them a serious threat once they establish themselves near homes or businesses. While wasps do contribute to controlling pest insects, their attraction to sugary substances and protein-rich foods often brings them close to people during meals and outdoor activities. Their ability to sting repeatedly and their unpredictable nature can lead to panic, painful injuries, and allergic reactions in some individuals. Once a nest is active, it becomes a source of stress and risk that typically grows worse with time, requiring prompt and professional removal.
The Problem with Wasp Infestations
One of the biggest difficulties in dealing with wasps is how quickly they can establish and grow their nests. A small number of wasps can rapidly expand into a large and aggressive colony, often tucked away in places that are hard to reach like inside wall voids, under eaves, in attics, or beneath sheds. These nests are frequently hidden from plain view until the problem becomes too large to ignore. Their defensive behavior makes it risky to approach the area, especially when the colony feels threatened. A single encounter can lead to multiple painful stings, putting people and pets in danger, particularly those with allergies.
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Many over-the-counter sprays and DIY treatments might seem like a convenient fix but rarely offer lasting results. These products often fail to eliminate the entire colony, especially the queen, allowing the nest to rebuild. Attempting to remove a wasp nest without proper protective gear or experience can lead to serious injury. Misuse of chemical treatments may also pose health hazards and negatively impact the surrounding environment. Because of the risks involved, wasp infestations are best handled by trained professionals who can assess the situation and remove the nest safely and completely.
Our Approach to Wasp Control
Managing a wasp problem isn’t something to take lightly. These insects can be aggressive and dangerous, especially when their nest is disturbed. Many people try store-bought sprays or homemade traps, but these methods rarely provide lasting results and often miss the source of the problem. A professional approach is the safest and most effective way to deal with wasps, especially when nests are located in difficult or high-risk areas like attics, soffits, wall voids, or under decks.
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Our team of trained specialists starts with a full inspection of your property to locate the nest and evaluate the level of infestation. Every situation is different, whether it involves yellowjackets, paper wasps, or hornets. Each species has unique nesting habits and behaviors, and our experience allows us to choose the right plan of action. We consider the safety of the people on-site, the surrounding environment, and the potential for the wasps to return when designing our treatment plan.
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After identifying the type of wasp and the location of the colony, we apply precise treatments that neutralize the threat without putting your family, pets, or structure at risk. The goal is not only to remove the nest but also to prevent a recurrence by targeting the root of the problem. With our expertise, you get more than just temporary relief. You gain peace of mind knowing your property is protected and your space is once again safe and comfortable.

If you're dealing with Wasps or have any questions, feel free to call our pest control experts at (438) 543-4691. We're here to take care of the problem quickly and efficiently.
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Our team will ensure that your property is completely ant-free, giving you peace of mind knowing the issue is resolved. Let us handle it so you can focus on what matters most.

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Are your treatments safe for children and pets?Yes, our treatments are safe for both children and pets. We use products that are rigorously tested and adhere to strict safety standards. Before applying any treatment, we provide clear instructions on how to ensure the safety of your home and family.
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How long does a typical treatment take?The duration of a typical treatment depends on the type of pest and the extent of the infestation. On average, most treatments take between 15 to 45 minutes. For more complex issues or larger properties, the treatment may take longer. Our team will provide a more accurate estimate based on your specific situation during the initial inspection.
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What are the signs of a pest infestation?Signs of a pest infestation vary by type of pest. Here’s how you can identify common infestations: Cockroaches: Droppings: Small, dark, cylindrical droppings often found in areas where they hide. Egg Cases: Brown, oval egg cases (oothecae) in dark, hidden areas. Unpleasant Odor: A musty or oily smell in infested areas. Shed Skins: Molted exoskeletons or skins around hiding spots. Visible Pests: Cockroaches are often seen in the dark or in high-moisture areas like kitchens and bathrooms. Bed Bugs: Bites: Red, itchy welts on the skin, often in a line or cluster. Blood Stains: Small blood stains on bed linens or pajamas. Dark Spots: Small, dark fecal spots on sheets, mattress seams, or nearby surfaces. Eggs and Skins: Tiny white eggs or discarded skins around bedding and mattress seams. Visible Bugs: Small, flat, reddish-brown insects, often found in and around the bed area. Ants: Trail of Ants: A visible line of ants following a path to and from a food source. Nesting Sites: Small piles of dirt or sawdust near baseboards, under appliances, or in other hidden areas. Foraging Behavior: Ants scouring countertops and floors for food. Rodents: Droppings: Small, pellet-shaped droppings in areas such as cupboards, basements, or behind appliances. Gnaw Marks: Chewed wires, furniture, or food packages. Nests: Small nests made from shredded materials, often found in hidden areas. Noises: Scratching or scampering sounds, particularly at night.
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Will I need to leave my home during treatment?Whether you need to leave your home during treatment depends on the type of treatment being used. For most treatments, you may be advised to leave the premises for a few hours to ensure safety and effectiveness. Our team will provide specific instructions based on the treatment method and your home’s requirements. We’ll make sure you have all the information you need to prepare for the treatment and return safely.
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How soon can I see results after treatment?The time it takes to see results after treatment can vary depending on the type of pest and the severity of the infestation. Generally, you may start noticing a reduction in pest activity within a few days. However, it might take a couple of weeks to see the full effects, especially with more persistent infestations. Our team will provide you with a timeframe based on your specific situation and keep you informed throughout the process.
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How do you ensure the effectiveness of your treatments?To ensure the effectiveness of our treatments, we follow a comprehensive approach: Detailed Inspection: We start with a thorough inspection to identify the type of pest, the extent of the infestation, and any contributing factors. Customized Plan: Based on our findings, we develop a tailored treatment plan that addresses your specific needs and targets the infestation effectively. Quality Products: We use high-quality, proven products and techniques that are designed to provide long-lasting results. Expert Application: Our trained and experienced technicians apply treatments with precision, ensuring that all affected areas are addressed. Follow-Up: We provide follow-up visits to monitor progress, address any remaining issues, and make adjustments if needed. Prevention Advice: We offer guidance on preventive measures to reduce the risk of future infestations and maintain a pest-free environment. By combining these practices, we ensure that our treatments are as effective as possible and provide you with the best results
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Can pests return after treatment?Yes, pests can return after treatment if they are reintroduced or if conditions become favorable for them. Here’s how it applies to common pests: Cockroaches: Even after complete eradication, cockroaches can enter your home through infested items, such as used furniture, appliances, or cardboard boxes. In multi-unit buildings, cockroaches can migrate from neighboring apartments if their infestation is not controlled. Bed Bugs: Once fully treated, bed bugs can reappear if new ones are brought into the home through infested items or travel. In multi-unit buildings, bed bugs can migrate from neighboring apartments if their infestation is not controlled. Ants: Ants might come back if new colonies are introduced or if conditions that attract them are not addressed, even after successful treatment. Rodents: Rodents can return if they find entry points or attractants in the home, even after a thorough treatment. In multi-unit buildings, rodents can migrate from neighboring apartments if their infestation is not controlled. Wasps: Wasps can reappear if new nests are built or if existing nests are not completely removed and treated. General Pests: For other pests, the risk of return exists if they are reintroduced or if conditions favorable to them are not managed. To help prevent pests from returning, we provide advice on how to minimize the risk and ensure the effectiveness of our treatments. Regular inspections and following preventive measures can also help keep your space pest-free.
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How do I maintain a pest-free environment after treatment?To maintain a pest-free environment after treatment, follow these practical steps: Keep Your Home Clean: Regularly clean floors, countertops, and other surfaces. Crumbs and spills can attract pests, so clean up food and drink spills immediately. Seal Entry Points: Check for and seal any gaps, cracks, or holes in your home’s walls, doors, and windows. Pests often enter through these small openings. Store Food Securely: Store all food in airtight containers and avoid leaving food out on countertops or tables. This reduces the chances of attracting pests. Fix Leaks and Moisture Issues: Address any water leaks or moisture problems in your home. Pests like cockroaches and rodents are drawn to damp environments. Reduce Clutter: Keep your home organized and reduce clutter. Pests can hide and nest in cluttered areas, so tidy up storage spaces and get rid of unnecessary items. Inspect Items Before Bringing Them In: When bringing new items into your home, especially second-hand furniture or appliances, check them for signs of pests. Monitor and Act Quickly: Keep an eye out for any signs of pests and address any issues as soon as they arise. Early detection can prevent a minor problem from becoming a major infestation. By incorporating these habits into your routine, you can help keep your home pest-free and address potential issues before they become significant problems.
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Can pests become resistant to treatments?Yes, pests can develop resistance to treatments over time. This can happen when pests are repeatedly exposed to the same treatment or product. Resistance occurs as pests that survive treatment pass on their resistant traits to future generations. To manage resistance, pest control professionals often use a combination of methods and products, rotate treatments, and follow up with additional treatments if needed. This approach helps ensure that treatments remain effective and can address pest problems effectively.
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How do you handle infestations that require multiple treatments?For infestations that require multiple treatments, we handle the situation with a structured approach: Initial Assessment: We begin with a thorough inspection to determine the extent of the infestation and develop a tailored treatment plan. First Treatment: We apply the initial treatment according to the plan, targeting the specific pests and their habitats. Follow-Up: After the first treatment, we schedule follow-up visits to assess progress, address any remaining issues, and apply additional treatments as needed. Ongoing Monitoring: We monitor the situation to ensure that the treatments are working effectively and that no new infestations are developing. Adjustments: If necessary, we adjust the treatment strategy based on observations and feedback to ensure continued effectiveness. Prevention Tips: We provide guidance on preventive measures to help you avoid future infestations and maintain a pest-free environment. By taking these steps, we ensure that persistent infestations are managed effectively and that you receive comprehensive care throughout the treatment process.
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What is pest control?Pest control is the practice of managing and eliminating pests like insects, rodents, and other unwanted creatures that can damage property or pose health risks. It includes prevention methods, such as sealing entry points, using pesticides, setting traps, and regular inspections, all aimed at protecting your home or business from pest infestations.
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What do you offer in terms of pest control services?Comprehensive Pest Control Services We provide expert insect extermination for a wide range of pests, including ants, cockroaches, bedbugs, wasps, flies, silverfish, earwigs, pantry pests, and more. Rodent Control Our rodent control services focus on eliminating rat and mouse infestations, ensuring your home or business stays pest-free. Seasonal Treatment Plans for Homes We offer seasonal treatment plans for homes, including both exterior and interior treatments, to tackle pests like ants and others that can invade your space during different times of the year. Monthly Services for Commercial Properties For commercial properties, we offer monthly pest control services to maintain a pest-free environment and protect your business year-round.