Getting rid of wasps around your house comes down to three things: removing existing nests, trapping foragers, and sealing up the gaps that invite them back. The approach you take depends on what type of wasp you’re dealing with and where they’ve set up, but most homeowners can handle small nests safely with the right timing and a few inexpensive supplies.
Identify What You’re Dealing With
Before you grab a can of spray, take a moment to figure out which wasps are visiting. The three most common types around homes behave differently, and that changes how you handle them.
Paper wasps build small, open-celled nests that look like upside-down umbrellas. You’ll find them under eaves, porch ceilings, deck railings, and similar sheltered spots. These nests are exposed, so you can see the honeycomb structure directly. Paper wasps are relatively docile unless you disturb the nest.
Yellowjackets are the aggressive ones. They’re stocky, bright yellow and black, and they often nest underground in old rodent burrows or inside wall voids. Their nests are enclosed in a papery shell, and colonies can grow into the thousands by late summer. Yellowjackets are responsible for most wasp stings around homes because they scavenge at trash cans, cookouts, and anywhere food is left out.
European hornets are noticeably larger, ranging from three-quarters of an inch to nearly an inch and a half. They’re reddish-brown with golden yellow markings and teardrop-shaped patterns on the abdomen. They typically nest in hollow trees, attics, or wall cavities, and they’re one of the few wasps that fly at night.
Remove Nests Safely
The single most effective thing you can do is eliminate the nest itself. For small, visible paper wasp nests, this is a straightforward job. For large yellowjacket or hornet colonies, it’s worth calling a professional.
Timing matters more than anything else. Treat nests at night, when nearly all the wasps are inside and far less active. The one exception is paper wasps, which can be treated during the day as long as you don’t stand directly underneath the nest. Locate the nest entrance during daylight so you know exactly where to aim after dark.
Aerosol wasp sprays designed for nest treatment can reach up to 20 feet, which lets you keep a safe distance. Aim the spray directly into the nest opening and saturate it for several seconds. Don’t try to knock the nest down immediately. Wait at least three to four days to confirm the colony is dead before scraping or pulling the nest off.
Wear protective clothing whenever you treat a nest. A long-sleeved shirt, pants, gloves, and closed shoes are the minimum. For hornets or yellowjackets, a full wasp suit with a head veil sealed at the wrists, ankles, and collar is strongly recommended. These wasps can sting repeatedly, and a defensive swarm from a large colony is genuinely dangerous.
When to Call a Professional
If a nest is inside a wall void, up in an attic, buried underground, or anywhere that’s hard to reach, professional removal is the safer choice. The cost depends on the type of wasp, the size of the colony, and how difficult the nest is to access. A nest tucked inside a crawl space or high on a roofline will cost more because it requires specialized equipment and extra time. Many pest control companies include stinging insect treatment in their general plans, though physical nest removal sometimes carries an additional charge.
Set Up Traps for Foragers
Traps won’t eliminate a colony, but they reduce the number of wasps buzzing around your outdoor living spaces. Commercial wasp traps and homemade versions both work on the same principle: lure wasps into a container they can’t easily escape from.
The bait you use should match the season. In spring and early summer, wasps are raising larvae and craving protein, so a small piece of raw meat or fish works well. By mid to late summer, their dietary preference shifts toward sugars. A simple brown sugar syrup (one ounce of dark brown sugar dissolved in one cup of water) is an effective and inexpensive bait for this time of year.
Place traps around the perimeter of your yard or near problem areas like garbage cans and outdoor dining spots, but keep them at least 20 feet away from where people gather. You want the traps pulling wasps away from you, not drawing them closer. One caution: traps set very early in the season can catch beneficial pollinators like wild bees. Hold off on deploying them until wasp populations visibly increase, typically mid-summer onward.
Use Repellents to Keep Wasps Away
Certain plant-based oils genuinely repel wasps. Research has shown that a blend of clove, geranium, and lemongrass essential oils can block wasps from being attracted to food sources. Clove oil alone reduced wasp visits to baited traps by about 95% in one study. The active compounds responsible are the same chemicals that give these plants their strong scents.
To make a simple repellent spray, combine about 20 drops of clove bud oil, 10 drops of lemongrass oil, and 5 drops of geranium oil in a small spray bottle, then fill the rest with water or witch hazel. Shake well before each use and spray it around porch railings, door frames, window sills, and outdoor seating areas. This won’t kill wasps or destroy nests, but it can discourage them from lingering where you spend time. Reapply every few days or after rain.
Seal Entry Points to Prevent Nesting
Wasps return to the same general areas year after year because the structures that attracted them haven’t changed. Gaps in soffits, open eaves, unsealed joints between walls and rooflines, and cracks around utility penetrations all serve as invitations. Closing these off is the most reliable long-term prevention.
Start by inspecting the underside of your eaves and soffits for gaps, even small ones. Wasps can squeeze through surprisingly tight spaces. Caulk seams and joints with exterior-grade silicone. For larger openings or ventilation gaps, install stainless steel insect screen. It has the same fine mesh size as regular window screen but uses a heavier gauge wire that won’t corrode or deteriorate over time. Staple or fasten the mesh behind soffit panels, across blocking between rafters, and over any opening that connects to an enclosed cavity.
If wasps have already been nesting in a soffit or wall void, remove the soffit panel to access the space, clean out old nests completely, seal any openings between the wall and the roof structure, install mesh screening, and then replace and caulk the soffit. Leaving old nests in place can attract new queens looking for established nesting sites the following spring.
Reduce What Attracts Them
Wasps hang around houses for three reasons: shelter, food, and water. You’ve addressed shelter by sealing entry points and removing nests. Food and water take a bit of ongoing attention.
Keep outdoor trash cans tightly lidded. Rinse recycling bins regularly, especially ones holding soda cans or juice containers. Pick up fallen fruit from trees. If you eat outdoors, cover food and clean up promptly. Pet food left outside is another draw, particularly in spring when wasps are hunting protein.
Standing water in birdbaths, clogged gutters, or plant saucers gives wasps a convenient drinking source. Eliminating unnecessary water sources, or at least moving them away from your house, makes your property less appealing as a home base.
What to Do if You Get Stung
Most wasp stings cause localized pain, redness, and swelling that resolve within a few hours to a couple of days. Clean the area with soap and water, apply a cold pack to reduce swelling, and take an over-the-counter pain reliever if needed. Unlike honeybees, wasps don’t leave a stinger behind, so there’s nothing to scrape out.
Watch for signs of a severe allergic reaction, which can develop within minutes. These include hives or flushing across the body, swelling of the face, lips, or throat, difficulty breathing or swallowing, a rapid and weak pulse, dizziness, or vomiting. This is anaphylaxis, and it requires an immediate call to 911. If the person carries an epinephrine autoinjector, help them use it right away. Have them lie flat and stay still. An antihistamine pill alone is not sufficient to treat anaphylaxis, as it works too slowly during a severe reaction. Even if symptoms begin improving after epinephrine, emergency medical evaluation is still necessary because symptoms can return.