Wolf spiders are ground hunters that don’t build webs, so they wander into homes through small gaps and tend to startle people with their size and speed. They’re harmless to humans, but that doesn’t mean you want them as roommates. Getting rid of them comes down to three things: sealing the entry points they use, reducing what attracts them inside, and removing or trapping the ones already there.
Make Sure It’s Actually a Wolf Spider
Wolf spiders are half an inch to two inches long, hairy, and brown to gray with stripes or mottled markings on their bodies. They’re often confused with brown recluse spiders, but the two look quite different up close. Brown recluses have a distinct violin-shaped marking behind the head and smoother, less hairy bodies. Wolf spiders lack that marking entirely. If you’re in the southeastern U.S. where brown recluses are native, this distinction matters for deciding how urgently to act.
Unlike web-building spiders, wolf spiders actively chase down prey. You’ll typically spot them running across floors, especially at night. They’re commonly found near doors, windows, basements, garages, and around houseplants. Seeing one indoors usually means it followed insects inside or slipped through a gap while looking for shelter.
Seal the Gaps They Use to Get Inside
The most effective long-term fix is physical exclusion: making it harder for wolf spiders (and the insects they hunt) to enter your home. A gap as small as 1/16 of an inch is enough for spiders and insects to squeeze through, so even cracks that look insignificant can be entry points.
Start with exterior doors. Lie on the floor and check for light filtering underneath. Install door sweeps or thresholds at the base of every exterior door, paying special attention to the bottom corners, which are the most common entry spots. Caulk along the bottom outside edge and sides of door thresholds. For garage doors, use a rubber bottom seal rather than vinyl, which performs poorly in cold weather. Sliding glass doors can be sealed by lining the bottom track with half-inch to three-quarter-inch foam weatherstripping.
Next, seal utility openings where pipes and wires enter the foundation and siding. Think outdoor faucets, electrical receptacles, gas meters, dryer vents, and cable TV wires. These are some of the most overlooked entry points. Plug them with caulk, cement, expandable foam, steel wool, or copper mesh. For cracks around windows, doors, and fascia boards, use a quality silicone or acrylic latex caulk. Latex-type caulks are easier to work with because they clean up with water and can be painted over.
Repair any tears in window and door screens. Install quarter-inch wire mesh (hardware cloth) over attic, roof, and crawl space vents to block not just spiders but other wildlife from entering.
Remove What Attracts Them
Wolf spiders go where their food is. If your home has flies, crickets, ants, or other small insects, wolf spiders will follow. Reducing your indoor insect population is one of the most reliable ways to make your home less appealing to them.
Keep outdoor lights off or switch to yellow “bug lights” that attract fewer insects near doorways. Move woodpiles, leaf litter, and rock piles away from the foundation of your house, since these are prime wolf spider habitat. Trim vegetation and ground cover that touches the exterior walls. Inside, reduce clutter in basements, garages, and storage areas. Wolf spiders prefer dark, undisturbed spaces, so cleaning out cardboard boxes and clearing floor-level clutter removes the hiding spots they favor.
Trap the Ones Already Inside
Sticky traps (also called glue boards) are one of the simplest and most effective tools for catching wolf spiders that are already in your home. Because wolf spiders are active hunters that roam along floors and walls, they walk right into well-placed traps.
Place sticky traps flat against walls with the open ends running parallel to the wall surface, making it easy for spiders to walk in from either direction. Put them in dark, out-of-the-way locations: along garage walls, behind furniture, in storage areas, along baseboards in basements, and near doorways. Space them 5 to 10 feet apart in areas where you’ve seen activity. Replace them when they’re full or when the glue surface gets dusty and loses its stickiness.
For a single spider you can see, the simplest approach is the glass-and-cardboard method. Place a glass or jar over the spider, slide a piece of cardboard underneath, and carry it outside. Wolf spiders are fast but not aggressive toward people, and this gets the job done without chemicals.
Natural Repellents: What Works and What Doesn’t
Peppermint oil is the most commonly recommended natural spider repellent, and there’s some basis for it. The active compounds in peppermint oil are fumigants that show insecticidal properties in lab settings, and at least one study found peppermint oil repelled Argentine ants for up to seven days after application. That said, there’s limited scientific research proving it reliably repels or kills spiders specifically, and most commercial pest-control companies are skeptical of essential oils as standalone treatments.
If you want to try it, mix about five drops of peppermint oil into a 16-ounce spray bottle filled with water, add a small squirt of dish soap to help the oil mix, and shake well. Spray along baseboards, windowsills, doorframes, and other entry points. Reapply every few days, since the scent fades quickly. Think of this as a supplemental measure rather than your primary strategy.
Chemical Perimeter Treatments
For persistent problems, a perimeter spray can create a chemical barrier around your home’s foundation. Products in the pyrethroid family are the most widely used for this purpose. Pyrethroids are synthetic versions of compounds naturally found in chrysanthemum flowers, and they work by disrupting the nervous system of insects and spiders on contact.
These come as liquid sprays, granules, and aerosols. Apply them around the exterior foundation of your home, focusing on entry points like door thresholds, window frames, and utility openings. Indoor application along baseboards can also help in problem areas like basements and garages. Follow the product label carefully for application rates and safety precautions, especially if you have pets or small children. Residual sprays typically last several weeks before needing reapplication.
Wolf Spider Bites Are Not Dangerous
If a wolf spider does bite you, the venom is not dangerous to humans. Because of their size, the bite can cause some pain, a red bump, swelling, and visible fang marks, but these symptoms typically resolve on their own without medical attention. You might also experience some itching around the bite area.
Signs of an allergic reaction are different and worth watching for: a red line extending outward from the bite, hives that grow in size, or swelling of the face, particularly around the mouth. These reactions are uncommon but would warrant a call to your doctor. For a normal bite, basic first aid (clean the area, apply ice, and leave it alone) is all you need.