In the residential area of Boucherville, on the South Shore of Montreal, townhouses with pointed terraces are particularly favourable to pavement ant infestations. This is the case of a homeowner whose inner courtyard, landscaped with interlocking pavers, had begun to reveal worrying signs at the beginning of the summer: fine splashes of loose sand between the joints, intense activity of workers at the end of the afternoon and a few individuals seen in the kitchen, near the sink. Boucherville, a city neighbouring Chambly and Sainte-Julie, has a high residential density that favours the spread of colonies from one property to another.
Thorough perimeter inspection
The technician mandated by our team carried out a thorough inspection from the first morning. He has identified two large colonies established under the slabs of the courtyard and a satellite colony housed in a joint of the foundation on the north side. The adjoining courtyard, shared with the neighbour, was a potential vector of recontamination, which was taken into account in the treatment strategy. Pavement ants build their galleries at shallow depths beneath hard surfaces, making them difficult to dislodge without a structured protocol. The inspection also identified several crossing points between the exterior and the subfloor space, particularly around the plumbing pipes running through the concrete slab. This precise information guided the entire intervention.
Targeted and permanent treatment
The strategy adopted for this extermination of pavement ants in Boucherville was based on the combined use of gel baits deposited in the surface galleries and a microencapsulated insecticide applied as an injection into the load-bearing joints. Microencapsulation ensures a slow release of the active ingredient, maintaining an active barrier for several weeks after treatment. The intrusion points identified around the plumbing lines were sealed with a professional-grade sealant. A treatment of the foundation edge with a long-lasting insecticidal powder completed the intervention, creating a buffer zone as a deterrent against further colonization. All the work was documented with photos to ensure the traceability of the file. You can consult a comparable realization on paving stone ants treated in a townhouse to visualize this type of intervention.
Recommendations and post-treatment follow-up
The owner received a series of practical recommendations to reduce the risk of recurrence: remove any vegetation in direct contact with the foundation, keep the joints between the pavers in good condition with a curing product, and store the foodstuffs in airtight containers. For long-term protection, our team suggests considering caulking the entry points around all service penetrations into the foundation. A follow-up visit was carried out five weeks after the initial treatment and confirmed the elimination of the colonies. Also consult our achievements on anthills treated in urban areas for a complete portrait of our expertise. Our extermination company operates throughout the South Shore for long-lasting treatments without compromising on your peace of mind.