The most effective natural way to get rid of snakes in your house is to remove what attracted them in the first place: food, shelter, and easy entry points. Snakes don’t move into homes on purpose. They follow rodents, insects, or cool hiding spots, and they’ll leave or stay away once you eliminate those draws. If a snake is in your house right now, the priority is containment and safe removal before moving on to long-term prevention.
What to Do Right Now if a Snake Is Inside
Stay calm and keep your distance. Snakes enter homes by accident and are typically trying to find a way back out. Keep at least a few feet between you and the snake, and don’t attempt to grab it. Even nonvenomous snakes will bite defensively if they feel cornered.
Your immediate goal is to limit the snake’s movement. Close doors to the room it’s in so it can’t disappear deeper into the house. A snake that slips behind walls or into a crawlspace becomes far harder to deal with. Keep children and pets out of the area entirely.
If you can identify the snake as nonvenomous from a safe distance, you have a few options. You can open an exterior door in the room and gently guide it out with a long broom. You can also place a glue board trap along the wall where the snake is traveling. These traps hold the snake without injuring it. Once caught, take the trap outside, well away from your home, and pour vegetable oil over the snake’s body to dissolve the glue. Work slowly and keep oil away from the snake’s nostrils. It will release and move off on its own.
If you can’t identify the snake, treat it as potentially venomous and call a local wildlife removal professional. Don’t try to kill it. Dead venomous snakes can still bite reflexively and inject venom.
How to Tell if a Snake Is Venomous
In the United States, most snakes found indoors are harmless species like garter snakes, rat snakes, and corn snakes. The venomous species you’re most likely to encounter are copperheads, cottonmouths, rattlesnakes, and coral snakes.
Copperheads, cottonmouths, and rattlesnakes are all pit vipers. They share a few features you can spot from a distance: thick, heavy bodies relative to their length, triangular heads that are distinctly wider than their necks, and vertical (cat-like) pupils. Copperheads have reddish-brown hourglass-shaped bands on a lighter body. Cottonmouths range from olive-brown to nearly black and will display the white interior of their mouth when threatened. Rattlesnakes have a rattle at the tail tip, though young ones may only have a single button that’s hard to see.
Coral snakes look completely different. They’re slender with small, rounded heads and bright bands of red, yellow, and black. The key identifier: red bands touch yellow bands. Several harmless snakes mimic this pattern, but on those species the red bands touch black instead. The old rhyme “red touches yellow, kill a fellow” holds true for North American species.
Seal Every Entry Point
Snakes can squeeze through surprisingly small gaps. A half-inch opening is enough for most adult snakes, and baby rattlesnakes can pass through half-inch hardware cloth without difficulty. To block all sizes, use quarter-inch by quarter-inch hardware cloth over vents, crawlspace openings, and any gaps in your foundation. This mesh size stops even hatchlings.
Walk the perimeter of your home and check for gaps around pipes, utility lines, dryer vents, and where the siding meets the foundation. Caulk or expanding foam works for small cracks. For larger openings, cut hardware cloth to size and secure it with screws or staples. Don’t forget door sweeps on exterior doors, especially garage doors, which are one of the most common snake entry points. The sweep should sit flush against the ground with no visible daylight underneath.
Check window well covers, basement windows, and any drainage pipes that enter the home. If a pipe has space around it where it passes through a wall, fill it. Snakes are opportunistic. They don’t create openings, but they’ll exploit every one you leave.
Eliminate Food Sources
Snakes go where the food is. For most species found in homes, that means rodents. If you have mice or rats, you almost certainly have a reason for snakes to visit. Solving the rodent problem is the single most effective long-term snake deterrent.
Start by identifying what kind of rodent you’re dealing with. Mice leave small droppings and tend to nest inside walls and cabinets. Rats leave larger droppings and gnaw marks. Outside, voles create small holes and trails through grass, while gophers leave mounds of dirt with larger burrow openings. Each requires a slightly different approach, but the basics overlap: remove food access, eliminate nesting sites, and use traps.
Indoors, store all food (including pet food) in sealed hard containers. Fix leaky pipes that provide water sources. Set snap traps along walls where you’ve seen droppings. Outdoors, keep bird feeders away from the house or eliminate them entirely, since spilled seed attracts mice. Clean up fallen fruit from trees. Stack firewood at least 20 feet from your home and elevate it off the ground. Rodents reproduce quickly and often avoid any single control method, so using multiple approaches at once gives the best results.
Remove Hiding Spots Around Your Home
Snakes need cover. They’re vulnerable to hawks, cats, and other predators in the open, so they stick to areas with shelter. Rock piles, brush piles, tall grass, dense ground cover, and stacked lumber all create ideal snake habitat right next to your house.
Keep grass mowed short within a wide perimeter around your foundation. Move rock piles, compost bins, and wood stacks well away from the house. Trim shrubs and ground cover so there’s a clear, open zone between your landscaping and your walls. If you have decorative rock or mulch beds right against the foundation, consider replacing them with gravel or bare ground. Mulch beds stay moist and attract insects, which attract frogs and rodents, which attract snakes. The whole food chain starts with cover and moisture.
Inside, reduce clutter in basements, garages, and storage areas. Snakes that get indoors will hide in boxes, behind appliances, or in piles of stored items. The less clutter, the fewer hiding spots, and the easier it is to spot a snake before it settles in.
Why Mothballs and Repellents Don’t Work
Mothballs are one of the most common folk remedies for snakes, and they flat out don’t work. Studies have shown they have no meaningful repellent effect on snakes. UVA Health describes their use as a snake repellent as “an old wives’ tale that just won’t go away.”
Beyond being ineffective, mothballs are genuinely dangerous. They contain naphthalene or paradichlorobenzene, both of which release toxic fumes. Scattering them under or around a house means those vapors seep into your living space, causing headaches, dizziness, and eye and lung irritation. They also look like candy to young children. Naphthalene exposure can damage red blood cells, leading to fatigue, shortness of breath, and painful urination. Using mothballs outdoors or in any way not listed on their label is actually a violation of federal pesticide law.
Commercial snake repellents, including those containing sulfur or essential oil blends, haven’t fared any better in testing. No chemical repellent has been proven to reliably deter snakes. Your time and money are far better spent on physical exclusion and habitat modification, which actually solve the problem.
Natural Predators and Deterrents That Help
Certain animals naturally keep snake populations in check. Cats are active hunters of small snakes. Guinea fowl and some chicken breeds will kill and eat snakes on sight. King snakes eat other snakes, including venomous species, and their presence in an area tends to push other snakes out.
You can also encourage natural predators by installing raptor perches or owl boxes near your property. Hawks and owls hunt both snakes and the rodents that attract them, addressing two problems at once. These aren’t instant solutions, but over a season or two, a property with active predators will see noticeably fewer snakes than one without.
Trapping Snakes for Removal
If you’re dealing with a snake you’ve confirmed is nonvenomous and want to handle it yourself, glue board traps are the simplest option. Place them along walls, in corners, and near any gaps where a snake might travel. Snakes follow edges rather than crossing open floor space, so wall placement is key.
Check traps daily. When you catch a snake, take the entire trap outside to a wooded area or field at least a quarter mile from your home. Pour vegetable oil or cooking oil generously over the snake’s body, working it gently between the snake and the adhesive. Start from the tail and work toward the head. The oil neutralizes the glue, and the snake will free itself and move away. It may lose a few scales in the process, but this is minor and heals quickly.
Minnow traps baited with eggs also work well for snake capture, particularly in crawlspaces or garages. The snake enters through the funnel opening to reach the bait but can’t easily find its way back out. These traps are fully reusable and cause no injury to the snake.
For venomous snakes, or any snake you can’t confidently identify, skip the DIY approach. A wildlife removal professional can typically respond the same day and will have the right tools to handle the situation safely.