A ground squirrel in the walls usually means it entered through a foundation gap, and the fix is trapping it out and sealing the opening. Ground squirrels dig under foundations and can enter through gaps. Here is what to do.
- Ground squirrels enter through foundation gaps.
- Trap them near the entry point.
- Seal the gap after removal.
- They live in colonies, so expect several.
Confirm It Is a Ground Squirrel
Ground squirrels are active during the day, so you hear scampering in the walls during daylight, unlike rats and mice, which are nocturnal. Look for burrow entrances near the foundation.
Trap Them
Small live traps or snap traps baited with nuts, oats, or peanut butter, placed near the entry point or burrow, work. Ground squirrels live in colonies, so be prepared for several.
Seal the Gap
Inspect the foundation, sill plate, and pipe entries for gaps. Seal every opening with mesh or hardware cloth. Sealing is what ends the problem.
Remove Attractants
Remove food sources like spilled bird seed and fallen fruit, and trim ground cover near the house. Less food and cover means the colony moves elsewhere.
Frequently Asked Questions
Trap it near the entry point, then seal the foundation gap. Ground squirrels live in colonies, so expect several.
Yes, their burrows can undermine foundations over time, and they enter walls through gaps. Address it promptly.
Through gaps in the foundation, sill plate, and pipe entries. Sealing those gaps is the fix.
Yes, they live in colonies, so where there is one there are usually several.




