Boxelder Bug Exterminator in Montreal
Take back control of your home - today!
CALL NOW
Stink bugs at your house?
Do you see black bugs with red lines on sunny exterior walls in the spring and fall? maple bugBox elder bug) It is harmless but invades homes massively and can stain textiles and wallpaper with its defensive secretions.
Contact an exterminator for preventive perimeter spraying and interior treatment.
Pest control specialist boxelder bugs
The maple bugBox elder bug) is a seasonal insect that appears massively in spring and fall on sunny houses in Quebec. It reproduces on Manitoba maples and some other trees, then seeks to overwinter in buildings.
Although harmless (it doesn't sting and doesn't transmit diseases), it can invade a house by the hundreds, stain textiles with its reddish secretions, and create unpleasant odors if crushed.
✅ Preventive perimeter spraying – ✅ Interior treatment if invasion – ✅ Anti-penetration advice
Why maple bugs invade your home
The maple bug seeks a warm shelter to spend the winter and is attracted to sunny surfaces and cracks in exterior walls. In spring, it reappears to feed on maple seeds. This cycle repeats every year, amplified by the box elder trees planted near your property.
Our professional approach:
1. Exterior perimeter spray in March-April (before emergence) and September-October (before overwintering).
2. Interior treatment if already entered in the walls or attics.
3. Identification of entry points with sealing recommendations (window joints, ducts, cracks).
4. Tips for felling box elder trees in the immediate vicinity (source of the problem).
Insecticide gel treatment
Our treatment uses a long-acting residual insecticide (4-6 weeks) sprayed on sunlit exterior walls. Application in March-April (before emergence) and September-October (before overwintering).
Preventive inspection and sealing
Our technicians inspect cracks, entry points, wet areas and nesting sites. Where possible, we recommend sealing access points to greatly reduce the risk of reinfestation.
Targeted spraying and spot treatment
We apply professional products approved by Health Canada to strategic areas such as baseboards, cracks, garages, foundations, windowsills and other points of activity. Treatment is targeted to maximize effectiveness while limiting unnecessary exposure.
Long-lasting professional baits
Our Health Canada approved products are compatible with trees and pollinators when applied to walls (not on trees). Method used in residential and condominium settings.
Why choose us
Why professional treatment ?
Once inside walls or attics, boxelder bugs can remain active all winter and emerge massively in March-April into living spaces.
Our goal: preventive spraying before invasion + curative treatment if already inside.
Our advantages:
📅 Optimal seasonal calendar
Application in March-April and September-October to intercept before internal invasion.🏠 Exterior perimeter spray
Residual insecticide on sunny walls, window frames, foundation cracks.🌳 Source diagnostics
Identification of neighboring box elders (often the cause).
Our method in 4 steps
The extermination of boxelder bugs relies on 4 steps: identification, preventive perimeter spraying, sealing entry points, and interior treatment if necessary. Seasonality is critical—acting at the right time prevents invasion.
Recognize a stink bug
Physical characteristics
The maple bugBox elder bugis easily recognizable by its distinctive black and red coloration.
- Size 11 to 14 mm as adults; ;
- Color : black with 3 orange-red stripes on the thorax and wings; ;
- Shape oval and flat body, long antennae; ;
- Ball able to fly short distances ;
- Behavior gregarious (in groups of tens to hundreds); ;
- Season peak in spring (March-May) and autumn (September-October).
Signs of an invasion
- Hundreds of black and red stink bugs on sunny exterior walls in spring and autumn; ;
- Focus on south and west facades from the house; ;
- Presence in window frames, under door jambs; ;
- Indoor appearance in winter if already entered; ;
- Red spots on white walls or crushed fabrics; ;
- Unpleasant odor if bothered (defensive secretions).
Are they Dangerous?
No, the boxelder bug is completely harmless to your health: it does not sting, bite, transmit any diseases, or cause any structural damage to your home.
Its inconveniences are aesthetic and practical:
- Massive invasion (hundreds to thousands of individuals); ;
- red/orange stains on walls, curtains, carpets if crushed; ;
- unpleasant odor if disturbed; ;
- presence in living areas in spring if they entered in winter; ;
- Rare allergic reaction to excretions in sensitive individuals.
Why the preventive treatment is essential
Without perimeter spraying at the right time, maple bugs return each year in greater numbers because they reproduce near your home.
Our typical intervention:
- Exterior inspection: exposed facades, windows, foundations; ;
- residual insecticide spraying on exposed surfaces (March-April or Sept-Oct); ;
- Targeted interior treatment if already present (attics, window frames); ;
- Identification of nearby box elder maples; ;
- Sealing recommendations (window caulking, crack sealing, duct sealing); ;
- Off-season follow-up visit for double coverage.
Prevent return every year
Sustainable prevention of maple bugs combines seasonal spraying with sealing entry points.
- spray residual insecticide on sunny exterior walls in March-April and September-October; ;
- Seal cracks around windows, doors, vents, and exterior plumbing. ;
- install screens in good condition on all windows; ;
- seal attic and loft openings ;
- Consider felling or pruning box elders within 30 m of the house. ;
- Quickly vacuum visible groups (throw the bag outside); ;
- Avoid crushing on white surfaces (red stains).
What what our customers say
Areas served
Our specialized team services all of Greater Montreal for invasions of Box elder bug in single-family homes, condos, plexes, and buildings with sunny facades.
Montreal: Ahuntsic, Villeray, Rosemont, Plateau, Saint-Léonard, Saint-Laurent.
Written guarantee against boxelder bugs
Our seasonal treatment includes a preventive spray and a follow-up visit during the off-season. Written guarantee and free returns in case of mass invasion.
Others pests we treat
In addition to maple bugs, we offer professional pest control for several other pests in Montreal., Laval, on the North Shore and on the South Shore.
- 🐝 Wasps and hornets – Outdoor nests in the summer season.
- 🐭 Mice and rats Fall invasion in walls and attics.
- Squirrel Squirrels Humanitarian aid for attics and roofs.
- 🕷️ Spiders – Facades and outdoor areas.
- 🪲 Bedbugs – For indoor invasions.
How much does it cost A spray for boxelder bugs?
The price of a perimeter spray against maple bugs in Montreal usually ranges between $200 $ and $450 $. depending on the size of the building and the number of facades to be treated. A follow-up visit in the opposite season can be added.
Request your free submission (438) 835-8401.
Fair Questions about maple bugs
The maple bugBox elder bugis a black insect with 3 orange-red bands on its thorax and wings, measuring 11 to 14 mm. It appears massively on sunny exterior walls in spring (March-May) and autumn (September-October).
No. The maple bug is completely harmless: it doesn't sting, bite, or transmit any diseases. The inconveniences are aesthetic (massive invasion, red stains if crushed) and practical (presence in the house in the spring).
The price usually ranges between 200 $ and 450 $ depending on the size of the building and the number of facades to treat. Preventive perimeter spraying in March-April and September-October for optimal results.
The best times are March-April (before the spring bloom) and September-October (before winter shutdown in the walls). A well-planned intervention avoids massive invasion during the season.
They reproduce on the Manitoba maple and some other trees. If a box elder is planted within 30 meters of your house, it's probably the source. Pruning or removing the tree drastically reduces the invasion.
Very little. Aerosols don't cover enough surface area to eliminate the hundreds of individuals present. Our professional spraying uses residual insecticides that remain active for 4 to 6 weeks on treated surfaces.
Seal cracks around windows, doors, vents, and foundations. Install well-maintained screens. Seal attic openings. Combine with a seasonal preventive spray for optimal results.
Yes. The spraying is applied to the exterior walls of the house, not the trees. The products used are Health Canada approved and do not harm trees or pollinators when applied correctly.
