Something keeps tunneling under the concrete slab of my garden shed. I’ve filled it in, but every morning it’s back—and I’m worried it could damage the foundation. What would you do?

8. Install a Protective Barrier

A long-term solution is to create a dig-resistant barrier around the shed. Use galvanized wire mesh buried roughly 12 inches underground and bend it outward in an “L” shape to stop animals from tunneling underneath. Extending the mesh about 24 inches above ground can also help prevent climbing.

9. Repair or Strengthen the Concrete

After the animal has been removed, inspect the concrete slab for cracks or weak spots. Minor cracks can usually be filled with standard concrete repair compound, but more serious damage might require additional concrete reinforcement or steel support. Regular checks can help avoid larger problems later.

10. Reduce Yard Attractions

Make your yard less inviting to burrowing animals. Keep grass trimmed, remove piles of debris, and protect gardens with fencing. Some homeowners also use natural deterrents such as garlic-based sprays or hot pepper mixtures. When food and shelter are limited, groundhogs often relocate.

11. Seek Professional Help if Needed

If trapping efforts fail or if the shed shows major structural issues, it may be time to call professionals. Wildlife control specialists can safely handle the animal, while structural experts can evaluate the stability of your shed and recommend proper repairs. Professional help can prevent further damage and give you peace of mind.

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