Professional Wasps in Wall Extermination Services
Call us at 647-708-7378
How to Identify Wasps in Your Walls
Appearance
Most wasps found nesting inside wall cavities are yellowjackets or paper wasps. These insects are about 1/2 to 1 inch long with narrow waists, smooth bodies, and bold black and yellow markings. They’re often mistaken for bees but are less fuzzy and more aggressive.
Behavior
Wasps are attracted to quiet, enclosed spaces that provide warmth and shelter. Wall voids are ideal nesting locations, especially behind exterior siding or between insulation layers. Once inside, wasps can build large colonies undetected for weeks.
Signs of an Infestation
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Buzzing or tapping sounds coming from within walls, especially during the day.
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Increased wasp activity near siding, vents, or tiny cracks around the foundation or roofline.
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Discoloration or soft spots on walls, indicating hidden nest expansion.
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Visible entry/exit points, where wasps are flying in and out of gaps in siding, bricks, or around windows.
Early detection is critical, as wall nests can grow quickly and become harder to remove over time.
How to Remove Wasps from Your Walls
A wasp infestation inside your walls poses unique risks. Beyond the danger of stings, nests can expand into insulation or electrical wiring, leading to potential damage. At Power Pest Control, we provide safe and targeted wasp removal for Toronto homeowners.
Here’s our expert approach:
1. Confirm Nest Location
We conduct a thorough inspection using both visual cues and sound detection to identify the exact location and size of the wasp nest inside the wall.
2. Avoid DIY Treatments
Spraying or disturbing a wall nest can drive wasps deeper into your home—or even into living spaces. DIY attempts can also trap wasps inside, leading to drywall damage or hidden nests decomposing.
3. Safe, Targeted Treatment
Our technicians use specialized dusts or foams designed to reach inside wall voids without cutting into the structure. This eliminates the colony at its source while minimizing property disruption.
4. Entry Point Sealing
Once the nest is neutralized, we seal the exterior access points with caulking, mesh, or sealant to prevent wasps from returning to the same location.
5. Follow-Up & Monitoring
We recommend follow-up visits during peak season (late summer to early fall) to ensure there’s no remaining activity or new nests forming elsewhere on the property.
If you hear buzzing in your walls or notice suspicious wasp activity, don’t wait—contact Power Pest Control for expert removal and peace of mind.
SUCCESS STORIES
How to Prevent Wasps from Nesting in Your Walls
Wasps are opportunistic nesters and will return to the same areas year after year if the conditions are right. Preventative measures can help protect your home long-term.
Seal Exterior Openings
Inspect your home’s exterior—especially siding joints, roof edges, fascia boards, and areas around windows or doors. Seal any gaps with caulk or weatherproof materials.
Screen Vents and Openings
Install fine mesh screens over air vents, exhaust ducts, and attic openings. Wasps often exploit these access points to reach wall cavities.
Keep Landscaping Trimmed
Overgrown shrubs, trees, or vines that touch your exterior walls can provide wasps with a bridge to your home. Keep vegetation well-trimmed and away from siding.
Remove Old Nests Promptly
Even inactive nests can attract new colonies. Remove any old or abandoned nests around your home in early spring before wasp season begins.
Schedule Seasonal Inspections
Routine inspections—especially in spring and summer—can help detect and address early signs of activity before a full infestation takes hold.
For maximum protection, consider Power Pest Control’s seasonal prevention packages, tailored to your property’s layout and risk areas.
Why Call a Professional Exterminator?
Calling for Carpenter Bee control takes the guesswork out of getting rid of pests. Not only can a Carpenter Bee exterminator quickly find where the Carpenter Bee are hiding, but they can remove the pests without creating hazards in the home for homeowners, children, and pets. The only way to guarantee that Carpenter Bee are removed permanently from the home is to call a professional exterminator. Any other methods have no way of ensuring that pests are removed and no way of ensuring that those within the home remain safe.
Inspection
During an inspection, an exterminator will look inside and outside the building with the pest problem. They will find common areas where Carpenter Bee tend to enter the home and other areas where the Carpenter Bee might be living. There are many tools that an inspector might use including a flashlight, a moisture meter, and other tools to determine where the pests are located.
Treatment
After inspection, the exterminator will determine what type of treatment is best for the building. Professionals Carpenter Bee removers will help you determine what needs to be done before they can remove the bugs. They can also help you determine how to protect your home and possessions from Carpenter Bee while they prepare to exterminate the insects.
Follow Up
Exterminators can advise you on how to keep pests from coming back, and if you continue to heed their expert advice, pests like Carpenter Bee should no longer be a problem. Power Pest Control offers warranties with all our packages so that if pests come back, even if you do stick to our advice, within six months, we can come back get any insects that may have been missed.
FAQs About Wasps in Wall

How do wasps get into my walls?
Wasps enter through small exterior gaps—such as cracks in siding, soffits, vents, or brick mortar. From there, they build nests in the voids between insulation, drywall, or siding.
Can wasps damage my walls?
Yes. Over time, large nests can weaken drywall, chew through insulation, and even interfere with electrical wiring. Dead nests can also lead to odor or mold if left inside the wall.
What are the signs of wasps in the wall?
Common signs include buzzing or rustling sounds behind walls, visible wasps entering through siding gaps, and soft or warped wall surfaces in affected areas.
Is it dangerous to have wasps in the walls?
Absolutely. A disturbed colony can sting repeatedly if they break into living spaces. Wasps are highly territorial and aggressive if they feel threatened.
How are wall nests safely removed?
A professional will use insecticidal dust or foam to treat the nest through the entry point. In most cases, the wall does not need to be opened, and the treatment neutralizes the colony safely and discreetly.
Contact Power Pest Control today to see what we can do to help you with your Wasp problem. Call us at 647-708-7378 or visit our website today.
AREAS WE SERVICE
Power Pest Control has been a quality provider of the best pest control and extermination service since our establishment. It is with great pride and joy we announce that we serve our customers in Toronto and all neighboring areas. We want you to be able to reach us wherever you are promptly and conveniently. Choose your location and click below for additional information.
Markham, ON
Thornhill, ON
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