How to Stop Skunks From Digging Under Your House

If you’re dealing with skunks digging under house foundations, you’re probably seeing fresh holes, disturbed soil, and a strong smell that shows up at the worst times. Skunks are persistent, and once they find a safe spot beneath your home, they keep returning. The good news is you can stop the digging by figuring out what’s there, removing the attractants, and using proper exclusion and sealing.

For more help, see our Skunks Under Decks and Sheds: Block Entry Fast guide.

Why Skunks Dig Under Houses and Decks

Skunks dig because structures provide dark, protected cover and easy access to insects and grubs. Your foundation line, crawlspace vents, deck skirting, and porch edges can become a ready-made den area.

What attracts skunks to a foundation

Skunks are drawn to food and shelter. Under a house, they can find grubs, beetles, ants, and other insects living in the soil. If your yard has thick lawn that holds moisture, exposed crawlspace openings, or standing water near the foundation, it becomes even more attractive. Loose mulch, compost piles, and accumulated debris near the entry points also create cover and hunting spots.

How skunks use crawlspaces, decks, and porches

Skunks slip into crawlspaces through small gaps, including around vent openings, damaged skirting, and openings under steps. Decks and porches act like windbreaks and predator barriers, so the animal works the edges and low spaces under boards. They dig a tunnel from the surface toward a safer den area, then use the same route repeatedly, expanding the entrance hole over time.

Signs the digging is active and recent

Look for fresh, loose soil piled at the edge of the hole, intact blades of grass that get pushed aside, and a travel path with repeated disturbance. Active digging usually shows nearby scenting or nighttime movement. You may also notice scratching noises in the crawlspace or under the deck, especially during the evening hours when skunks feed.

How to Tell Whether You Have Skunks or Another Burrowing Animal

Before you block anything, identify the animal. Hole size, track shape, and damage patterns tell you whether you’re dealing with a skunk versus other burrowers.

Track the size and shape of the entry hole

Skunk entry holes are often small to medium, with a rough, disturbed perimeter and a tunnel that leads under cover. Compare the hole with what’s typical for local wildlife, since groundhogs and raccoons tend to create different entrance patterns and opening sizes. If the opening is near a foundation edge and stays small while digging continues outward, that can point to skunks using the same access point.

Look for tracks, droppings, and musky odor

Skunk tracks usually show five toe pads on the front and four on the hind, with noticeable claw marks. Droppings are often dark with a strong musky smell, and they may be found near the travel route or just outside the entrance area. Raccoon droppings are more tubular, and groundhog droppings are pellet-like. If you smell a sharp skunk odor near the hole, take it seriously as active skunk presence.

Spot the difference between skunk, groundhog, and raccoon damage

Groundhogs often create larger burrows with a flatter, more excavated look and may show heavy chewing if they feed on landscaping. Raccoons tend to use latched gaps, crawl space access points, and may cause torn materials, plus they often leave behind more obvious debris. Skunks usually focus on small entry points along foundation edges, with localized soil disruption and a musky scent.

Immediate Steps to Protect Your Home

Act fast to reduce risk and prevent the animal from getting trapped inside. Your first goal is to make sure you’re not accidentally sealing an occupied den.

Keep away from the entrance and avoid trapping animals inside

Skunks spray when they feel cornered or threatened, so give the area a wide buffer. Do not place traps directly at the den entrance or try to block the opening while you suspect an animal is inside. If you can safely access from a distance, observe from inside a closed area or a vehicle, and avoid shining bright lights directly at the entrance.

Keep pets and kids at least 25 to 30 feet away from the hole and crawlspace entrances.

Postpone sealing or permanent blocking until you know the den is empty.
If you must work outside, wear eye protection and long sleeves, and keep a clear escape path.

Reduce food, shelter, and hiding spots around the house

Lowering what attracts skunks helps them move on. Start with insects and debris close to the foundation, because skunks hunt for grubs and other prey in the soil. Clean up anything that provides cover, like piles of leaves or loose boards.

Remove leaves, mulch, and debris within 10 feet of the foundation line.
Fix sprinkler overspray and any standing water near crawlspace vents and porch edges.
Cut back overgrown grass and weeds close to the access points so the skunks have less cover to approach safely.

Use lights, noise, and motion-activated deterrents correctly

Deterrents can make the area less comfortable, but they work best as part of a bigger plan. Motion-activated lights and sprinklers work when they detect movement and startle the animal without causing it to get stuck inside.

Install a motion-activated light aimed at the entry area, not into the crawlspace.
Place motion-activated sprinklers so the spray hits the approach path, not the den entrance.

Avoid using loud continuous noise that can push the animal into the structure through nearby gaps.

Safe Ways to Remove Skunks Already Under the House

Removal must be handled with care. The safest approach is to exclude the animal at the right time, after it has left, or to hire a licensed wildlife removal professional when access is complex.

When to call a licensed wildlife removal professional

Call a professional if the skunk is fully inside a crawlspace you cannot access safely, if there are multiple entry points, or if you suspect babies. Professionals have the right equipment to remove and exclude wildlife without trapping the animal. If the area includes insulation contamination or difficult sealing work, expert help prevents damage and odor problems.

Contact a licensed wildlife control operator if the crawlspace is enclosed, blocked, or difficult to close.
Ask about exclusion methods and a removal plan, not just trapping.
Use their guidance before any permanent repairs to vents, skirting, or foundation gaps.

Why exclusion is safer than trying to chase them out

Chasing can corner the skunk, increasing spray risk and making it dig deeper into the structure. Exclusion methods guide the animal out while blocking re-entry. This reduces the chance that the skunk stays trapped inside, which creates strong odor and a cleanup job you do not want.

Plan to use one-way exclusion devices or professional exclusion tactics rather than blocking openings immediately.
Keep the area dark and minimize disturbances while the animal leaves on its own.

Avoid sealing during the day if you see recent digging or nighttime activity.

How to confirm the animals have left before sealing

Sealing too early is the main mistake. Before you close any gaps, make sure there is no ongoing digging and no signs of re-entry. Confirmation comes from observations and the status of the exclusion setup, not guesswork.

Watch the entrance area at dusk and during the night for at least two clear nights of inactivity.

Look for the tunnel area staying undisturbed, with no fresh soil and no returning scent marks.
Once activity stops, seal the entry point using durable materials that skunks cannot dig through.

Seal the Foundation So Skunks Cannot Return

Sealing is where the long-term fix happens. Use durable barriers that resist digging, and close gaps along vents, skirting, and foundation edges.

Repair gaps, vents, and weak points along the foundation

Start by locating all access points, including small gaps around vent openings, holes under steps, and damaged deck skirting. Skunks can enter through surprisingly small spaces and expand them with repeated digging.

Inspect the foundation line, crawlspace vents, and under-deck seams for openings 1/2 inch or larger.
Remove loose material around damaged areas so the barrier fits tightly against solid surfaces.

Repair structural cracks and gaps before covering them, so the barrier has something solid to attach to.

Install buried barriers or hardware cloth where needed

Skunks dig, so surface-only blocking fails. Where the animal can reach soil, use barriers that extend below ground level and hold up to digging pressure.

Install 1/4-inch hardware cloth where skunks can access the base, and bury it at least 12 inches deep (more if you know they’ve dug deeper).

Overlap seams and fasten edges securely so gaps do not form at corners.
Use corrosion-resistant fasteners for outdoor use.

Close off deck and porch openings without trapping wildlife

Deck and porch skirting can be sealed once you confirm the den is empty. Focus on closing openings while leaving no path back into the crawlspace or under-structure void.

Replace damaged skirting with rigid panels or properly fitted barriers, leaving no gaps bigger than 1/2 inch.

Close openings under stairs and porch edges using hardware cloth behind solid trim where appropriate.
Ensure any vents remain properly screened, not blocked, so you do not create moisture or airflow problems.

Prevent Future Digging Around the Yard

Prevention works best when you remove food sources and make the area less comfortable for foraging. Keep barriers maintained, and reduce the soil conditions skunks like.

Remove grubs, insects, and other food sources

Skunks hunt insects under lawns and near moist soil. If you reduce grubs and beetles, the skunk’s incentive to dig decreases.

Treat lawn grub problems using an appropriate local product and follow label directions for timing.
Reduce standing water and fix drainage issues so the yard holds less moisture.

Keep trash secure and clean up pet food so it does not attract insects and other wildlife.

Trim vegetation and clean up debris near the house

Skunks use cover to move closer to entry points. When you remove hiding spots, they lose the advantage and the approach becomes more exposed.

Trim shrubs and weeds back at least 2 to 3 feet from the foundation line.

Remove leaf piles, fallen branches, and boards stacked near the crawlspace entrances.
Keep mulch in a neat layer and avoid piling it directly against the foundation.

Maintain barriers, grading, and drainage

Even good sealing can fail if landscaping shifts, soil settles, or water concentrates near weak spots. Maintenance prevents re-entry.

Check hardware cloth and skirting after heavy rain and during landscaping changes.
Regrade soil so water moves away from the foundation, not toward it.
Keep gutters clean and ensure downspouts discharge away from crawlspace openings.

When the Damage Means Bigger Problems

Sometimes skunk activity leads to issues beyond holes in the dirt. Odor, contamination, and insulation damage can turn a nuisance into a larger cleanup and repair job.

Check for insulation damage, odor, and contamination

Crawlspaces can collect odor when skunks urinate or leave waste under insulation and in voids. If you see disturbed insulation, wet spots, or strong persistent musky smell, the cleanup needs careful handling.

Inspect crawlspace areas for torn insulation, droppings, and areas that smell strongly.

If waste is present, plan for professional cleaning guidance, especially if insulation is heavily contaminated.
Ventilate the space while you assess, and wear appropriate protective gear to avoid exposure.

Watch for repeated burrowing or animal re-entry

If the digging starts again after repairs, you likely missed an entry point or the barrier was undermined. Repeated signs mean the skunks still have an access route.

Monitor the same perimeter points at night after sealing to detect renewed digging.
Look for new soil piles, fresh holes, and disturbed edges along vents or deck skirting.
Reinspect all nearby structures, including sheds, steps, and fence lines that may connect to crawlspace access.

Know when foundation repair or pest control is needed

Foundation issues and persistent burrowing can require structural fixes plus wildlife exclusion. If you see cracks, sinking soil, or recurring access gaps, pest control alone will not solve the cause.

Have a contractor evaluate foundation cracks or settling if gaps are widening or shifting.
Use wildlife control to recheck exclusion effectiveness if re-entry happens.

Address moisture and drainage issues, because persistent dampness encourages insects, which brings skunks back.

Frequently Asked Questions

Do skunks burrow under houses on purpose?

Yes. Skunks dig under houses, decks, sheds, and porches because these spaces are dark, quiet, and protected from predators. They also look for insects in the soil, and they may use crawlspaces and voids as a safe den site.

How do I know if a skunk is under my house?

Look for a fresh hole near the foundation, disturbed soil, and nighttime activity. A strong musky odor is another key sign. You may also hear rustling, scratching, or movement from within the crawlspace or under a deck.

Is it dangerous to seal a skunk inside?

Yes. Sealing an occupied den can trap the animal, cause severe odor, and create a stressful situation that increases spraying risk. Confirm the area is empty, or hire a licensed wildlife professional before closing openings.

Will mothballs, ammonia, or loud noises keep skunks away?

They may cause short-term avoidance, but they are unreliable as a long-term fix. Skunks can return once the disturbance stops, especially if food sources and access points remain. The dependable solution is removing attractants and blocking entry with durable materials.

Can skunks under a deck cause damage?

Yes. Skunks can enlarge holes, disturb soil, damage insulation or crawlspace barriers, and leave behind odor and waste. Repeated digging can also undermine soil near the foundation and worsen the access problem over time.