Sealed Gas Line Entry Point Exclusion

Case Study: Mice Infest Cellar in Vaughan

The following article details a mouse control job in Vaughan. Mice had snuck into a single-family home in September by crawling through the vents and gaps in the home’s exterior. To get rid of them, a technician used stations of rodenticide and blocked out every possible entry point. If you have been struggling with mice, give us a call. Our technicians are trained and experienced in getting rid of mice in a variety of settings. We will get rid of the mice on your property and keep them gone for good.


The homeowner in this case gave Mouse Control a call when they needed help getting rid of mice. They could hear scratching sounds coming from the walls in the basement and they had spotted mice in their cold cellar. Invasions like these are common in the fall when the situation took place. Mice hope to nest somewhere warm in the winter, so they sneak into our homes. A member of the Mouse Control team arrived the next day to investigate.

Mouse Problems in Fall
Rodent problems are common in the fall. Like us, the animals would rather live somewhere cozy for the winter.

With every job, our technicians perform detailed inspections. This determines where the pests are most active and where they are coming from, so we can treat the problem more effectively and help prevent one from ever happening again. In this case, the technician found signs of mouse activity throughout the basement cellar. Droppings were found along the walls and the homeowner pointed out where they could hear scratching noises.

Following the interior inspection, the technician went outside to look for entry points. Mice usually enter homes by crawling through vents, cracks in the foundation, and gaps under doors. Any hole or space that could fit a mouse may cause an interior infestation. Here, the technician found 2 wall vents and a gap surrounding the gas line. Wall vents can unfortunately be chewed through, and mice can climb up the brick wall and through the gas line gap. These would need to be addresses to keep mice out for good.

Gas Line Mouse Entry Point
Mice frequently use gaps surrounding the utility lines to get inside the house. Thankfully, these can be sealed with caulking or mesh.

The technician recommended having some bait stations installed in the basement, then to have the entry points excluded. Trapping the mice indoors would contain the infestation while keeping other mice from coming inside. The homeowner agreed to the bait stations but wanted some time to think about the exclusion. So, the technician got the treatment started.

Treatment and Exclusion

Two bait stations were placed in the basement. Both were set up along the walls, where mice are most likely to travel. Because mice have poor vision, they tend to walk along the outer walls of rooms, travelling along the same paths every night. Putting bait stations here increases you chances of catching mice. The bait stations used consist of small plastic boxes with holes on their side. They contain a rodenticide that appeals to mice, so mice enter them, feed, then perish in their nests.

A few weeks later, the technician returned to check on the bait stations. Missing packets of rodenticide indicated that the mice were feeding on the poison and the treatment was working. To ensure that every mouse would be accounted for, the technician refilled the stations and would return again later.

During the second visit, the homeowner agreed to have the exterior of the home excluded. Since the technician had all the necessary equipment on him, he got started right away. First, he filled the gap surrounding the gas line with caulking, then he covered the wall vents with mesh. This is a 16-gauge mesh made of galvanized steel, thick enough that rodents cannot chew through. When finished, the technician provided the owner with a 2-year warranty. If anything were to break through his work, one of our technicians would come back to fix it.

Sealed Gas Line Entry Point Exclusion
Sealing this opening would keep mice and insects from crawling into the walls of the home, then making their way into the cellar.
Wall Vent Covered
Mice and rats use wall vents to get inside the house. They can climb up the home’s brick wall, then chew their way through the vent.


Within a few more weeks, the mice were gone, and the homeowner has not had any mice since. Excluding the home, whilst targeting the mice with strategically placed bait got rid of the mice in a matter of weeks.

It’s important to remember that mice do not appear out of thin air. They get into the house somehow. When getting rid of mice, get the help of a professional technician and close those entry points to keep mice out for good. Call Mouse Control for safe and effective mouse removal services in the GTA.

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