Squirrel in Your GTA Attic: Why They Come Back

You called a wildlife company. They caught a squirrel and sealed the hole. A month later, another squirrel chewed through a different spot and is back in your attic. This is the most common complaint about squirrel removal. Here is why it happens and how to fix it.

Why Squirrels Come Back

Wrong entry point identification. Squirrels often have multiple entry points. You sealed one, but they use another. The sealed squirrel circled back to find the original entry sealed and chewed a new hole.

Seasonal re-entry. Squirrels return to the same spaces in spring and fall. Your exclusion was correct for fall, but spring breeding brings new squirrels looking for den sites.

Trap and release cycle. Trapping one squirrel and relocating it does nothing to prevent the next one. The territory is still available, and another squirrel moves in.

The Right Approach: One-Way Doors

One-way doors let squirrels exit but prevent re-entry. This is the proper technique. The squirrel leaves to forage and cannot get back in. No trapping, no relocation, no cycle.

One-way doors must be installed over ALL active entry points, not just the obvious one. A proper exclusion covers every gap the species could use.

Entry Point Types

Squirrels enter through specific points:

• Roof edge: Where the roof meets the fascia. Squirrels loosen shingles and slip underneath.
• Soffit vents: The small vents under your eaves look solid but allow squirrel entry.
• Roof vents: Plastic mushroom vents are easy targets.

Timing Matters

The best time for squirrel exclusion is February to March before breeding season, and September to October before winter. Excluding in summer risks trapping nursing mothers with their young.

What Else Is Needed

Exclusion alone is not enough. Nest material must be removed, otherwise insects infest the decaying matter. Sanitation removes urine and feces. A full inspection identifies all entry points.

Get free quotes from licensed squirrel removal operators who use proper exclusion techniques instead of trapping.