The most effective way to get rid of snakes is to make your property unappealing to them by removing hiding spots, cutting off their food supply, and sealing entry points. Chemical repellents, despite being widely sold, don’t work. The strategies that actually keep snakes away are physical: changing your yard, installing barriers, and controlling rodents.
Why Snakes Are on Your Property
Snakes show up for two reasons: shelter and food. A yard with tall grass, rock piles, stacked firewood, or gaps under a porch offers exactly the kind of cool, protected cover snakes seek out. Those same hiding spots also attract rodents, which are a primary food source for most snake species. If you have a mouse or vole problem, you likely have a snake problem too, because the snakes are following the meal.
Understanding this connection is key. You don’t need to chase individual snakes off your property. You need to eliminate the conditions that invite them in the first place.
Remove Hiding Spots Around Your Yard
This is the single most impactful step. Snakes are ambush predators that rely on cover to hunt and rest. Every pile of debris, overgrown shrub, or gap in your foundation is a potential snake habitat. Michigan State University Extension recommends these specific changes:
- Rock and brush piles: Remove them entirely. They shelter both snakes and the rodents snakes eat.
- Firewood and lumber: Store firewood on a raised rack, ideally away from your house. Old lumber, tarps, and construction debris sitting on the ground should be cleared.
- Grass height: Mow regularly. Tall grass gives snakes cover to move and hunt without being detected by predators like hawks.
- Shrubs and bushes: Trim branches so they don’t touch the ground. That gap between the lowest branch and the soil removes a favorite hiding spot.
- Decks, porches, and steps: Block access to the space underneath with hardware cloth or lattice backed by fine mesh. Snakes, rodents, and other animals use these shaded, protected areas heavily.
- Foundation gaps: Seal any openings where siding meets the foundation. Check around pipes, vents, and utility lines entering the house.
These changes work because they address the root cause. A clean, open, well-maintained yard simply has nothing to offer a snake.
Cut Off the Food Supply
Rodent control is snake control. If mice, voles, or rats are living on your property, snakes will find them. Oregon State University Extension notes that voles reproduce quickly, have many offspring, and often avoid traps and baits, so a single approach rarely solves the problem. An integrated strategy works best.
Start by identifying what’s attracting rodents. Bird feeders that spill seed on the ground are a common culprit. Pet food left outside, open compost bins, and fruit that falls from trees all draw rodents in. Removing those food sources is the first layer. Snap traps placed along walls and runways can reduce active populations, though trapping alone is usually temporary. Encouraging natural predators (owls, hawks, and yes, non-venomous snakes) provides ongoing control without chemicals.
If you choose to use rodenticides, be cautious. Poisons that kill rodents can also poison the animals that eat them, including pets, raptors, and the very snakes you might want around. The National Pesticide Information Center can help you select products with lower risks to non-target wildlife.
Install Snake-Proof Fencing
If you live in an area with venomous snakes and want a physical barrier, snake fencing works when installed correctly. The specifications matter more than most people realize.
Use metal mesh (galvanized hardware cloth or steel) with gaps no larger than 1/4 inch. Baby rattlesnakes can squeeze through gaps as small as 1/3 inch, so standard chicken wire is useless for this purpose. Chicken wire also degrades quickly and isn’t available in a small enough mesh size to block snakes. Plastic screening breaks down in sunlight and weather within a season or two.
The mesh should extend at least 30 inches above the nearest ground surface, with 36 inches being the recommended height. Bury the bottom edge a few inches underground or bend it outward in an L-shape to prevent snakes from pushing underneath. Gates and corners are the most common failure points, so pay extra attention to ensuring there are no gaps at these spots.
Snake fencing makes the most sense around specific high-use areas like a patio, play area, or pool deck rather than an entire property perimeter, which can be expensive and difficult to maintain.
Why Commercial Repellents Don’t Work
This is worth addressing directly because repellents are one of the most commonly purchased snake products. Research from the University of Nebraska tested naphthalene (mothballs), sulfur, and a commercial product combining the two against garter snakes. The snakes showed no significant avoidance behavior in any trial. Whether placed in the snake’s home range or an unfamiliar area, the chemicals did not alter the snakes’ movement or behavior. Non-avoidance rates were as high as 90% in the sulfur trials, with no statistical difference between the chemical treatments and plain limestone controls.
In short, the snakes may detect the smell, but they don’t care. Mothballs scattered around your yard are not only ineffective but also toxic to children, pets, and soil. Sulfur granules are similarly useless. Save your money and invest in habitat modification instead.
What to Do if a Snake Is Inside Your Home
Finding a snake indoors is startling, but the snake almost certainly entered by accident and wants to leave as much as you want it gone. Stay calm and keep your distance of at least a few feet. Most snakes found in homes are non-venomous species like garter snakes, rat snakes, or corn snakes.
Your first priority is containment. Close doors to limit where the snake can travel. You don’t want it disappearing into a closet or behind an appliance. If the snake is near an exterior door, you can sometimes guide it outside with a broom, sweeping gently in the direction you want it to go. For a small or coiled snake, place an overturned bucket or wastebasket over it and set something heavy on top to hold it in place until you can deal with it or call for help.
If you can identify the snake as harmless and you’re comfortable handling the situation, scoop it into a container and release it in a natural area away from homes. If you can’t identify it, or if it has a triangular head, elliptical pupils, or a heat-sensing pit between the eye and nostril, treat it as venomous and call a wildlife removal professional. Don’t attempt to capture a snake you suspect is venomous.
How to Identify a Venomous Snake
In the United States, the vast majority of venomous snakes are pit vipers: rattlesnakes, copperheads, and cottonmouths. They share several visual features that can help you identify them from a safe distance.
Pit vipers have a broad, triangular or spade-shaped head that’s noticeably wider than the neck. They have vertical, cat-like pupils rather than round ones. And they have a small pit (a heat-sensing organ) on each side of the face, located roughly between the eye and the nostril. Rattlesnakes typically have rattles on the tail tip. Young copperheads and cottonmouths have bright yellow or greenish-yellow tail tips.
One important caution: many non-venomous snakes flatten their heads when threatened, making them look triangular. Watersnakes do this frequently and are commonly mistaken for cottonmouths. If you’re unsure, keep your distance and let the snake move on. Most snakes will leave on their own if given space and an escape route.
When to Call a Professional
Call a wildlife control service if you find a snake you suspect is venomous, if snakes keep appearing despite habitat changes, or if you find shed skins or droppings that suggest a snake is living in your walls, crawl space, or attic. Shed skins and droppings are sometimes the only evidence, since snakes can be secretive enough that you never see the animal itself.
Professional removal is also the right call if a snake is in a location you can’t safely access, like inside a wall void, behind a water heater, or in a cluttered garage. Snakes will not bite unless they feel cornered or are handled directly, but the risk of a bite increases sharply when someone tries to grab or trap a snake in a tight space without experience.
If Someone Gets Bitten
Call 911 immediately. Don’t wait to see if symptoms develop. While waiting for help, move away from the snake, stay still and calm, and remove jewelry, watches, or tight clothing before swelling begins. Clean the bite with soap and water and wrap it loosely with a dry bandage. Keep the bitten limb roughly at heart level.
If you can safely photograph the snake from a distance, do so. Identifying the species helps medical teams choose the right treatment. If swelling begins, mark its edge with a pen and note the time so healthcare providers can track how fast it’s spreading.
Do not apply a tourniquet, ice, or suction. Do not cut the wound. Avoid aspirin, ibuprofen, or naproxen, as these increase bleeding risk. Acetaminophen (Tylenol) is safe for pain relief while you wait for emergency care.