Chipmunks may look cute, but when they start burrowing under your deck, porch, or patio, they can cause serious damage to your home’s foundation and landscape. Their tunnels can loosen soil, damage support beams, and even attract other pests.
Learning how to get rid of chipmunks safely and humanely helps protect your home while keeping your outdoor space beautiful.

In this guide, you’ll discover natural remedies, DIY repellents, and long-term prevention tips to stop chipmunks from nesting under your structures—without harming your garden or the environment.

Why Chipmunks Nest Under Decks, Porches, and Patios

Chipmunks seek out sheltered, dry spaces where they can store food and stay safe from predators. Unfortunately, the area under your deck or patio is ideal for them. Understanding why they choose these hiding spots is the first step toward effective control.

---

Common Reasons Chipmunks Choose These Spots

1. Protection from predators: Areas under decks provide cover from cats, dogs, and birds of prey.
2. Ideal nesting spots: Chipmunks prefer soft soil for digging burrows and tunnels.
3. Nearby food sources: Gardens, bird feeders, and fruit trees attract chipmunks looking for easy meals.
4. Warmth and dryness: Decks and porches keep them warm during colder seasons.

Signs of a Chipmunk Infestation Around Your Home

Before you start removal, look for these clear signs of chipmunk activity:

• Small holes or tunnels near foundations and garden beds
• Chewed plant roots or bulbs
• Sounds of scratching or digging near your porch
• Droppings or small paw prints in soft soil

These signs confirm that chipmunks have established burrows nearby and are likely nesting under your deck or patio.

How to Identify Chipmunk Burrows and Entry Points

Chipmunks create 1–2 inch-wide burrow entrances without mounds of dirt—unlike moles or groundhogs. Look for these openings near the edges of decks, patios, or stairs. Use a flashlight to inspect cracks, wood gaps, and soil edges where chipmunks might slip in.

Mark these locations before applying repellents or sealing holes later on.

The Damage Chipmunks Can Cause Around Your Home

Although chipmunks are small, they can cause surprisingly large problems when they build tunnels around your home. Their digging habits can weaken soil, harm plants, and even lead to structural damage if left unchecked. Understanding the risks helps you act early before the damage spreads.

Structural Risks of Chipmunk Tunnels

Chipmunks dig complex underground tunnels that can stretch several feet long. When these tunnels form near deck footings, patios, or home foundations, they can displace soil and weaken support structures.
Over time, this may lead to:

• Cracked patios or uneven pavers due to soil instability
• Sagging decks from disturbed support beams
• Foundation settling in severe infestations

If you notice small holes or sinking areas near your deck, it’s a strong sign of chipmunk burrowing activity.

Garden and Landscaping Damage

Chipmunks love to dig up flower bulbs, eat seeds, and gnaw plant roots. They’re often drawn to gardens because of the easy access to food.
Here’s what they typically damage:

• Flower beds and vegetable gardens
• Bulbs like tulips, lilies, and daffodils
• Newly planted seeds and sprouts
• Potted plants near patios

They may also scatter mulch and dig in planters, leaving your garden messy and uneven.
To maintain a healthy, pest-free landscape, it’s important to use natural repellents and barriers early in the season.

Chipmunks vs. Other Burrowing Animals — Key Differences

Many homeowners confuse chipmunks with moles, voles, or ground squirrels. Knowing the difference helps you choose the right removal method.

Animal	Tunnel Size	Soil Mound	Diet	Common Area
Chipmunk	1–2 inches	No mound	Seeds, nuts, plants	Decks, patios, gardens
Mole	2–3 inches	Raised tunnels	Insects	Lawns
Vole	1 inch	Small mound	Roots, stems	Garden beds
Ground Squirrel	3+ inches	Large mound	Plants, grains	Open fields

Chipmunk holes are neat and dirt-free, which helps identify them quickly near porches or foundation edges.

Natural Ways to Get Rid of Chipmunks Under Decks

If you prefer eco-friendly pest control, there are plenty of natural ways to get rid of chipmunks without harming your pets, garden, or the environment.
These remedies rely on strong scents, barriers, and sound deterrents to drive chipmunks away and discourage them from coming back.

Using Scents Chipmunks Hate (Peppermint, Vinegar, Garlic)

Chipmunks have a highly sensitive sense of smell, making scent-based repellents very effective.
Here are some odors they can’t tolerate:

• Peppermint oil: Mix 10–15 drops with water in a spray bottle and apply it around deck edges, cracks, and burrow holes.
• Vinegar: Spray white vinegar near chipmunk tunnels to discourage nesting.
• Garlic or cayenne pepper: Sprinkle crushed garlic or pepper flakes near holes and garden borders.

Reapply every few days or after rainfall for best results.

How to Make a DIY Chipmunk Repellent Spray

Creating your own DIY chipmunk repellent is inexpensive and works surprisingly well.

Recipe:

• 1 cup water
• 1 tbsp cayenne pepper
• 1 tbsp dish soap
• 10 drops peppermint essential oil

Instructions:

1. Mix the ingredients in a spray bottle.
2. Spray around deck corners, patio edges, and garden beds.
3. Repeat every 3–4 days.

This mixture produces a scent that’s unpleasant for chipmunks but harmless to plants and pets.

Plants That Naturally Repel Chipmunks

Some strong-scented plants act as natural repellents while adding beauty to your garden. Plant these near your deck or patio perimeter:

• Daffodils – Their bulbs contain toxins that chipmunks avoid.
• Garlic and onions – Their strong aroma deters burrowing pests.
• Marigolds – A natural insect and rodent repellent.
• Lavender – Offers fragrance for humans, but chipmunks dislike it.

Integrating these plants helps you build a natural pest barrier and maintain an aesthetic landscape.

How Ultrasonic Repellers Help Deter Chipmunks

For those who want a hands-free solution, ultrasonic pest repellers are a great choice.
These devices emit high-frequency sounds that disturb chipmunks and other small rodents but are inaudible to humans.

Place one near your deck or patio entrance for continuous protection.
Many solar-powered versions are weather-resistant and safe for outdoor use.

Humane and Safe Chipmunk Removal Methods

If you’ve confirmed chipmunks are living under your deck, porch, or patio, it’s best to remove them humanely rather than using harsh chemicals or poisons. Humane removal protects your home while maintaining a balanced outdoor ecosystem.

Setting Live Traps Properly

Live traps are one of the most effective and humane ways to catch chipmunks without harming them.
Choose a small animal trap (around 10–12 inches) and follow these steps:

1. Bait the trap with sunflower seeds, peanut butter, or fruit.
2. Place it near burrow entrances or along chipmunk paths under the deck.
3. Check the trap regularly — at least every few hours to prevent stress.
4. Release the chipmunk safely several miles away in a wooded area.

Avoid setting traps in extreme heat or rain to ensure humane conditions.

Relocating Chipmunks Ethically and Legally

Before relocating chipmunks, check local wildlife regulations, as some areas have relocation limits.
When releasing chipmunks:

• Choose a safe forested or park area at least 2–5 miles from your home.
• Ensure no domestic pets or predators are nearby.
• Release them early in the day to give time for adjustment.

This approach keeps your property chipmunk-free while respecting nature.

Why You Should Avoid Poison or Harmful Chemicals

Using poisons or chemical bait may seem quick, but it can create bigger problems:

• Dead chipmunks may attract other pests or cause odor issues.
• Poisons can harm pets, birds, and beneficial wildlife.
• Contaminated soil or plants could affect your garden’s health.

Instead, rely on live traps, scent repellents, and exclusion barriers — methods proven safe and effective for long-term results.

How to Seal and Prevent Future Chipmunk Infestations

After removing chipmunks, it’s crucial to seal off all entry points and make your home less inviting to new ones. Prevention is always easier—and more effective—than removal.
With a few simple home maintenance steps, you can stop chipmunks from returning and protect your deck, porch, and patio for good.

Inspecting and Sealing Chipmunk Entry Points

Chipmunks are tiny and can squeeze through gaps as small as 1 inch. Carefully inspect these areas:

• Around deck posts and stairs
• Cracks in patio edges or between pavers
• Gaps around vents, pipes, and foundation walls

Once located, seal openings using:

• Hardware cloth or metal mesh (¼-inch holes)
• Concrete or caulk for small gaps
• Gravel or stones to block tunnel entrances

Recheck these spots seasonally to ensure no new holes appear.

Installing Wire Mesh or Gravel Barriers

Chipmunks often dig just below the surface, especially near decks and patios.
To block them permanently:

1. Dig a trench 8–12 inches deep along the deck perimeter.
2. Line it with wire mesh or galvanized hardware cloth.
3. Fill with gravel or crushed stone to make digging impossible.

This creates a durable underground barrier that deters burrowing animals without harming them.

Landscaping Tips to Deter Chipmunks from Returning

Chipmunks are attracted to cluttered areas and easy food sources. A few smart landscaping choices can discourage them naturally:

• Keep grass and shrubs trimmed and tidy.
• Store birdseed in sealed containers.
• Remove fallen fruits and nuts regularly.
• Avoid piling firewood or rocks near your deck.

These small changes help create a chipmunk-resistant environment while keeping your yard beautiful.

Using Motion-Activated Sprinklers or Lights

If chipmunks keep coming back, add a motion-activated sprinkler or ultrasonic light system near problem areas.
These devices startle chipmunks when they detect movement, teaching them to avoid your property over time.

• Sprinklers use a harmless water burst.
• Ultrasonic lights emit vibrations chipmunks dislike.
• Solar-powered options work great for patios and gardens.

Combined with sealing and repellent methods, these gadgets offer 24/7 protection without chemicals.

When to Call Professional Pest Control Services

While DIY chipmunk removal and prevention methods are effective for small infestations, sometimes the problem grows beyond what home remedies can handle.
If chipmunks continue nesting under your deck, porch, or patio despite your efforts, it’s time to call professional pest control services for a lasting solution.

Signs You Need Expert Help

If any of the following signs appear, your chipmunk infestation may require a professional:

• You notice multiple new burrows around the foundation each week.
• Your deck or patio begins sinking or cracking.
• DIY repellents or traps stop working after a few weeks.
• You hear persistent scratching or digging noises under structures.
• Chipmunks are entering crawl spaces, garages, or attics.

These signs indicate a large or deep nesting colony that needs expert attention.

What to Expect from a Professional Chipmunk Removal Service

A certified pest control technician or wildlife removal specialist uses safe and humane methods to manage chipmunks effectively.
Here’s what their process typically includes:

1. Inspection: Identifying entry points, burrows, and nesting zones.
2. Removal: Using live traps or exclusion devices to safely capture chipmunks.
3. Sealing: Closing gaps, holes, and cracks around decks and patios.
4. Prevention Plan: Installing barriers and recommending maintenance steps.

Professionals also ensure compliance with local wildlife laws for ethical relocation.

Average Cost of Chipmunk Removal

The cost of professional chipmunk removal varies depending on your location and the severity of the infestation.
On average, homeowners can expect:

• Initial inspection: $75 – $150
• Live trapping and removal: $200 – $400
• Sealing and exclusion work: $150 – $300
• Full pest control package (optional): $400 – $600

While hiring a professional may seem costly upfront, it often prevents future structural damage, saving you money long term.

Final Tips: Keeping Your Home Chipmunk-Free All Year

Even after removal, preventive maintenance is key to ensuring chipmunks don’t return.
A few small habits can make your deck, porch, and patio unappealing to burrowing pests year-round — helping you protect your home naturally and effortlessly.

Regular Maintenance and Yard Cleaning

Chipmunks are drawn to clutter, debris, and food sources around your yard. Keeping your outdoor area tidy helps break their nesting cycle.

Simple maintenance checklist:

• Clear away fallen nuts, fruits, and birdseed regularly.
• Trim back bushes, shrubs, and tall grass near decks.
• Sweep or hose off patios weekly.
• Store garbage in sealed bins and keep compost covered.

Routine cleaning makes your yard less attractive to chipmunks and other small rodents.

Seasonal Chipmunk Prevention Checklist

Chipmunk activity changes with the seasons, so your prevention strategy should too.

Spring:

• Inspect for new burrows or holes around decks and patios.
• Refresh natural repellents like peppermint oil or vinegar sprays.

Summer:

• Maintain wire mesh barriers and check for digging signs.
• Keep bird feeders elevated or move them away from your porch.

Fall:

• Remove fallen acorns, nuts, and leaves.
• Seal small gaps before chipmunks begin preparing for winter.

Winter:

• Watch for signs of nesting in sheds, garages, or crawl spaces.
• Reapply deterrents during warm spells when activity increases.

Eco-Friendly Long-Term Deterrent Strategies

To maintain a chipmunk-free home naturally, focus on sustainable deterrent practices that blend with your landscaping:

Plant deterrents: Keep lavender, garlic, or marigolds near decks.

Water barriers: Use motion-activated sprinklers to scare away pests.

Sound devices: Install solar-powered ultrasonic repellers.

Design smart: Avoid stacking wood or rock piles near deck foundations.

These methods keep chipmunks away while preserving your yard’s beauty and ecosystem balance.

FAQs About Getting Rid of Chipmunks

What is the fastest way to get rid of chipmunks?

The fastest way is to seal entry holes, set humane traps, and apply natural repellents like peppermint oil or cayenne powder near active areas.
Combining these methods ensures chipmunks leave quickly and don’t return.

How do I get rid of chipmunks under my deck or patio?

Locate all burrow openings and seal them with wire mesh or gravel, leaving one open for safe exit.
Then, use ultrasonic devices or natural deterrents near the remaining hole to drive them out before sealing completely.

Do coffee grounds repel chipmunks?

Yes — the strong smell of coffee grounds can help repel chipmunks.
Sprinkle used coffee grounds around garden beds, porch edges, and chipmunk-prone areas. It’s a simple, eco-friendly method to discourage digging.

What smells do chipmunks hate the most?

Chipmunks dislike peppermint, garlic, vinegar, and ammonia.
Spraying these scents around entry points and garden borders can help keep them away naturally.

How do I stop chipmunks from digging in my garden?

Cover soil with hardware cloth or garden mesh, especially near bulbs or flowerbeds.
Add a border of gravel or crushed stone around plants, and use repellents like castor oil spray for extra protection.

Are chipmunks harmful to homes or gardens?

While small and cute, chipmunks can cause serious structural damage by burrowing under decks or patios.
They can also eat plant roots, bulbs, and seeds — damaging gardens if left unchecked.

Should I hire a professional to remove chipmunks?

If DIY methods fail or the infestation grows, it’s best to call a licensed wildlife removal expert.
Professionals can remove chipmunks safely, seal all possible re-entry points, and ensure long-term prevention.

Conclusion:

To maintain a chipmunk-free home, focus on prevention, cleanliness, and eco-friendly deterrents.
Consistency matters more than intensity — small, regular actions make the biggest difference!