Vancouver Island is no stranger to rodent issues, especially in more densely populated areas like Victoria. In fact, a recent national report ranked Victoria fifth among Canadian cities for rodent activity, driven in part by mild weather and ongoing urban development.
With more rats being spotted around homes and businesses, many homeowners are looking for ways to protect their property. One of the most overlooked defences? Insulation—specifically spray foam insulation.
Why Rodents Get In (and Why It’s Hard to Keep Them Out)
Rodents like rats and mice are persistent. Once the temperature drops or food sources become scarce, they look for easy ways into warm, sheltered spaces. Homes with gaps around foundations, unsealed crawl spaces, or open wall cavities are easy targets.
Traditional fibreglass or batt insulation can actually make things worse. It doesn’t seal gaps, and once rodents get inside, they’ll chew through it or use it as nesting material. The result is contamination, odours, and damaged insulation that needs to be replaced.
How Spray Foam Stops the Problem Before It Starts
Closed-cell spray foam works differently. When applied, it expands into cracks, holes, and joints—filling spaces that rodents might otherwise use as entry points. Once cured, it forms a hard, dense barrier that rodents can’t easily chew through or move aside.
It’s not a pest control product in the traditional sense, but it creates a physical defence that makes your home much harder for pests to enter. That alone can dramatically reduce the risk of infestation.
Crawl Spaces, Attics, and Other Problem Areas
Crawl spaces and attics are two of the most common points of entry for rodents on Vancouver Island. Homes built decades ago often have gaps where utilities enter the home, or open vents with no airtight barrier behind them.
Spray foam is an excellent solution for these vulnerable areas. It conforms to uneven surfaces, sticks to wood, concrete, and metal, and seals tight—even in hard-to-reach places.
Once installed, it limits airflow, improves energy efficiency, and makes it much more difficult for pests to sneak in.
A Cleaner, Healthier Home
Rodents do more than chew—they leave behind droppings, dander, and urine, all of which can affect air quality and lead to costly cleanup.
Sealing off access points with spray foam insulation helps prevent this in the first place, which is especially important for families with young children, seniors, or anyone with allergies.
Based on Vancouver Island, HD Horne Sprayfoam & Insulation understands how to deal with the unique challenges of our climate and local wildlife. We’ve seen firsthand how spray foam improves both comfort and peace of mind.
If you’re concerned about rodents or want to seal up vulnerable parts of your home, reach out to HD Horne Sprayfoam & Insulation. We’ll help you create a well-sealed, energy-efficient, and rodent-resistant home—built for Vancouver Island living.
