Closure of outdoor access points
Mouse protection
An Essential Preventive Method to Block Rodent Invasions
Mouse can enter your home through openings as small as a dime. That’s why sealing off exterior access points is one of the most effective ways to prevent infestations before they even begin.
A Physical Barrier Against Intrusions
Rodents are attracted to warmth and food. By sealing exterior joints and openings, you eliminate the main entry points they use to get inside.
This approach allows you to:
Critical areas targeted during intervention
Our interventions focus on high-risk areas, particularly at material junctions:
Ventilation maintained through custom installations
Some openings are necessary for building ventilation. In these cases, we install a sturdy metal mesh that:
Robust Sealing for Unventilated Areas
When ventilation is not required, we use a professional-grade exterior sealant:
DOWSIL™ Contractor Paintable Sealant, a durable product designed to withstand Quebec winters.
Its advantages:
Protecting Brick Ventilation Joints (Weep Holes)
Weep holes are important for the breathability of brick walls, but they are also a target for mice.
We install high-grade copper insulation which:
Complete Inspection and Treatment of All Risk Areas
Each intervention includes a thorough inspection of your building to detect and secure other vulnerable areas, such as: electrical wire and cable penetrations, penetrations related to a heat pump or heating system, exterior electrical outlets and wall lights, and visible cracks or holes around the foundation.
Each of these areas is treated with the appropriate material to ensure long-lasting and aesthetically pleasing protection against mice.
A Preventative Approach Recommended by an Exterminator
Rather than waiting for an infestation, sealing off exterior access points addresses the root of the problem. It’s a proactive, cost-effective, and environmentally friendly measure that protects your indoor environment.
Protect Your Home from Rodents!
Trust Rive-Nord Extermination to block all entry points before it’s too late.
We offer a free assessment and superior service throughout the North Shore and Lanaudière regions.


