A groundhog under your shed is a problem you will usually hear before you see. The scratching under the floor, the dirt mound at the base, the garden plants vanishing overnight. It all points to one animal, and once a groundhog decides your shed is home, it is not leaving on its own.
Here is how to confirm it is a groundhog, how to get it out, and how to make sure it does not come back.
- Look for a burrow entrance with a dirt mound at the shed base.
- Groundhog burrows undermine the slab and funnel water underneath, causing settling and rot.
- Live trapping or a one-way door is the way to remove them; never seal one in.
- Bury a hardware cloth skirt around the shed to keep them out for good.
Signs of a groundhog under your shed
The obvious sign is a burrow entrance at the base of the shed, big enough to fit your fist, with a crescent-shaped pile of dirt kicked out beside it. That mound is the giveaway, because groundhogs push soil out as they dig.
You might also notice scratching or rustling under the floor in the early morning and late afternoon, which is when they are most active. Look for oval, dark droppings near the entrance, and plants clipped off near the shed.
A groundhog burrow is not a single hole. It is a tunnel system with multiple entrances and chambers, and it can run surprisingly far from the shed. That is what makes the damage worse than it looks.
Why groundhogs pick sheds
A shed is basically a pre-built roof over a burrow. The raised floor keeps out rain, predators, and temperature swings, and the dark space underneath feels just like a natural den.
The soil around a shed foundation is usually soft and easy to dig, which is exactly what a groundhog wants. Once it is dug in, it stays, and it will raise young there year after year.
The damage groundhogs do under sheds
The tunneling is the real threat. Burrows undermine concrete footings, let floor joists shift, and create voids that make the slab settle and crack.
Water is the second problem. Burrow openings funnel rainwater under the shed, which leads to rot and mold in the floor and framing. The extra airflow from the holes also pushes moisture under the structure, and that speeds up decay.
One warning up front: do not block the entrance to seal a groundhog in. A trapped groundhog will dig through the floor or die under there, and a dead animal under your shed stinks and draws flies. Get the animal out first, then seal.
How to remove a groundhog from under a shed
Step 1: Confirm it is active
Stuff the burrow entrance loosely with leaves or paper and check it a day later. If the plug is pushed out, the burrow is active. A trail camera pointed at the entrance will confirm it is a groundhog and not a skunk or rabbit.
Step 2: Set a live trap
Place a live trap near the entrance and bait it with cantaloupe, sweet corn, or apple. Put the bait past the trigger plate so the animal has to step all the way in. Check it morning and evening.
Step 3: Use a one-way door
After trapping, or instead of it, a one-way exclusion door over the entrance lets the groundhog leave but stops it getting back in. Leave it in place for a few days to be sure the animal has actually gone.
Step 4: Seal the burrow
Once you are sure nothing is living under there, fill the burrow with packed soil and gravel and tamp it down. Then watch for a few weeks to make sure no new digging starts.
Keeping groundhogs from coming back
Install a skirt of galvanized hardware cloth around the base of the shed. Bury it at least a foot deep and bend the bottom edge outward in an L-shape, so a digging groundhog hits the buried lip and gives up.
Keep the area around the shed clear. Mow the grass short, and remove brush piles, wood stacks, and tall weeds near the structure. Groundhogs like cover, and a clean perimeter leaves them exposed, so they are less likely to dig in.
Frequently Asked Questions
Look for a burrow entrance with a dirt mound at the base, fresh digging, droppings, and gnaw marks on wood. You might hear scratching under the floor at dawn and dusk, or see the groundhog itself coming and going.
Yes. Their tunnels undermine footings and slabs, cause settling, and create voids that lead to cracks over time. The damage gets worse the longer the animal stays, so don’t wait it out.
Rarely. Once a groundhog establishes a burrow under a shed, it stays and raises young there year after year. You almost always have to actively remove it.
Cantaloupe is the most reliable bait I know of. Sweet corn, apple, and fresh greens also work. Put the bait past the trigger plate so the animal has to step all the way into the trap.
Doing it yourself costs whatever you spend on a trap and materials. A professional usually charges per visit or per animal, so call a couple of local wildlife control operators for quotes rather than guessing.
The Bottom Line
A groundhog under your shed is a structural problem wrapped in a wildlife problem. Confirm it is active, trap or one-way-door it out, then seal the burrow and bury a hardware cloth skirt so it can’t come back.
Never seal an animal in under the shed. Remove first, seal second, and keep the perimeter clean, and the shed stays yours.
