How to Get Groundhogs Out from Under a Deck: 5 Steps

If you are trying to figure out how to deter groundhogs from under the deck, start with the hole, not the animal. Groundhogs come back to the same sheltered space if they can keep using it, so the real fix is to make the area unattractive, block access, and remove the food that keeps them nearby. The same approach works for how to get rid of groundhogs under my deck, how to get rid of groundhogs under shed, and how to get rid of groundhogs under porch.

Start by checking how the groundhog is using the space

Before you do anything else, find the main entry hole and look for secondary openings. Groundhogs usually dig one obvious entrance with a large pile of fresh soil outside it, then a tunnel system under the structure. You need to know where they are coming and going before you block anything, or you will trap one inside or leave an open side door.

Look for the signs that matter

Fresh dirt, a round burrow opening about 8 to 12 inches wide, crushed vegetation, and droppings near the entrance all point to active use. Under decks and sheds, you may also see worn paths in grass and damaged lattice or skirting. If the opening is under a porch, check the crawlspace edge and the corners where the siding meets the ground.

Find the main and backup exits

Groundhogs under sheds and decks use more than one exit if the tunnel is long enough. Mark every opening with a stake or small rock. Do not fill holes yet. The animal needs an exit route during the removal process, or it will dig a new one and spread the damage.

Remove the groundhog without trapping it inside

The best way to get rid of groundhogs under a shed or deck is to let the animal leave, then close the structure behind it. If local rules allow live trapping, use a large body-grip style trap only if you are trained and the law permits it, otherwise use a humane live trap sized for a groundhog. Place it close to the active opening on level ground, and bait it with apple slices, cantaloupe, or fresh lettuce.

Use a one-way exit or live trap

Set the trap or one-way exclusion device near the active entrance at dusk.

Wear gloves and avoid handling bait with bare hands.
Check the device first thing in the morning and again at night.
If the groundhog is caught, follow your local wildlife rules for relocation or removal.
Do not leave a live trap in direct sun all day.

If you need how to remove groundhogs from under a shed, the same setup works there. For crawlspaces and tight deck openings, one-way doors are cleaner than repeated trapping because they let the animal leave on its own.

Block the entrance the right way

Once the burrow is empty, seal it immediately. Groundhogs return fast if they smell a usable tunnel. The barrier that works is not loose chicken wire. Use 1/2 inch hardware cloth or welded wire, buried 12 inches deep and bent outward into an L shape for another 12 inches, then fasten it to the deck or shed skirt with exterior screws and washers.

Build a barrier that stops digging

For decks, install skirting from grade to the bottom edge of the structure, then extend the wire underground. For sheds, cover every side, including the rear wall if it faces brush or woods. For porches, close the open space under the floor with framed panels or heavy gauge mesh so the animal cannot reenter under the steps.

Seal the burrow after the animal leaves

Stuff the tunnel with packed gravel, then cover the entrance with soil and tamp it firm. Add the wire barrier over the spot. If you are closing several holes, start with the one nearest the main tunnel and move outward. This is the core of keeping groundhogs from under shed and deck structures long term.

Make the area less attractive for future digging

Groundhogs choose cover, food, and easy access. Remove those three things and you cut off the reason they stay. If you are deterring groundhogs from nesting under sheds or trying to keep groundhogs from under deck stairs, the yard around the structure matters as much as the opening itself.

Clear food and cover

Trim tall grass, remove brush piles, and thin out dense shrubs within 20 to 30 feet of the structure. Pick ripe vegetables and fruit as soon as they are ready, and clean up fallen apples, berries, and garden scraps. If you have a compost pile, use a closed bin with a tight lid. Pet food, bird seed, and spilled grain also draw groundhogs into yards.

Use barriers in the garden and around beds

If the deck is near a vegetable plot, surround the garden with 3 to 4 foot fencing and bury the bottom 12 inches. Groundhogs can climb, so the top edge should lean outward. For especially stubborn spots, add an electric fence approved for wildlife at 4 to 6 inches off the ground, with a second wire 8 to 10 inches high.

Use repellents as a short-term backup, not the main fix

If you want how to repel groundhogs under shed openings while you are building a barrier, use repellents only as a temporary pressure tactic. They work best when the burrow is already abandoned or when you are trying to push the animal toward an open exit. The main goal is to make the spot unpleasant until exclusion is complete.

Apply scent and taste repellents correctly

Use a commercial animal repellent labeled for groundhogs and follow the label exactly. Spray or granules go around the entrance, along paths, and at the base of nearby plants, not directly into the tunnel. Reapply after heavy rain and after mowing. Strong scents like predator urine or castor oil based repellents can support the eviction process, but they do not replace hardware cloth or fencing.

Do not rely on noise or gimmicks

Motion devices, radios, and homemade noise tricks do not solve how to keep groundhogs away from shed areas. Groundhogs get used to sound fast. Use repellents only as a bridge while you trap, wait for departure, or install a physical barrier.

Prevent damage to the deck, shed, porch, and garden

Once the groundhog is gone, protect the structure so the same problem does not start again. Groundhogs cause trouble by undermining footings, loosening posts, and opening pathways for water and other pests. The fastest way to avoid another infestation is to harden every access point around the structure and the landscape around it.

Protect vulnerable edges and corners

Install lattice only if it is backed by hardware cloth. Leave no gap larger than 1/2 inch at corners, vents, or pipe penetrations. If the deck sits low to the ground, the skirting should be buried or anchored to a trench so the animal cannot dig underneath. For sheds, keep the perimeter clean and visible, with no stacked firewood or debris leaning against the walls.

Reduce digging opportunities nearby

Fix eroded soil, fill depressions, and redirect standing water away from the structure. Groundhogs like soft ground that is easy to excavate. If they have been feeding in the yard, fence the vegetable garden before the next growing season. That is the most reliable way to get rid of groundhogs under a shed and keep them from coming back to the same property.

Frequently Asked Questions

How do you get rid of groundhogs under deck spaces fast?

The fastest safe approach is to identify the active entrance, place a one-way exit or legal live trap, then seal the opening with buried hardware cloth after the animal is out. Do not fill the hole first. That pushes the groundhog to dig another exit.

What is the best way to get rid of groundhogs under shed structures?

The best method is exclusion. Remove the animal, then trench and bury 1/2 inch hardware cloth around the shed perimeter. Pair that with cleanup of brush, weeds, and food sources so the burrow site does not stay attractive.

How do you get groundhogs from under a porch?

Use the same process as with a deck, but pay extra attention to porch corners, steps, and crawlspace vents. Close the opening with framed wire mesh or solid skirting that extends into the ground, since porches often have multiple weak points.

How can I get rid of groundhogs under my shed without them coming back?

Block every gap after the animal leaves, not just the main entrance. Then remove cover, keep grass short, store compost in sealed bins, and protect nearby gardens with fencing. Exclusion plus habitat cleanup stops repeat digging.

What should I use to repel groundhogs under shed areas?

Use a repellent labeled for groundhogs as a temporary measure, placed around the entrance and along nearby paths. It helps discourage reentry during the removal process, but it does not replace fencing, skirting, or buried mesh.