How to Get Rid of Ants in the Kitchen

If you want to know how to get rid of ants in the kitchen for good, the answer is to kill the colony, not the handful of ants you can see. The ants on your counter are foragers sent out from a hidden nest, and they will keep coming as long as the queen is alive and food is easy to find. Slow-acting baits, a cleaner kitchen, and caulk solve most cases.

TL;DR

Put away the spray. It only kills the ants you see and can stop the rest from taking bait.
Set out sweet gel or liquid bait right next to the trail, and let the ants feed for several days.
If the ants ignore sweet bait, try a protein or grease bait, or a different brand.
Once activity stops, clean up crumbs and spills, store food in sealed containers, and caulk the entry gaps.
Large black ants plus sawdust or winged ants indoors can mean carpenter ants, which is a moisture and wood problem worth a pro’s look.

Why Ants Are in Your Kitchen
Identify Your Ant
Symptoms, Causes, and Who Should Fix It
How to Get Rid of Kitchen Ants, Step by Step
What Not to Do
When to Call a Professional
How to Prevent It
FAQ

Why Ants Are in Your Kitchen

Ants come inside for three things: food, water, and shelter from bad weather. A kitchen offers all three in one room.

Easy Food

Crumbs under the toaster, a sticky ring under the honey jar, grease on the stovetop, and a pet bowl left full all day are open invitations.

Moisture

Ants need water, and some species nest near it. A slow drip under the sink, a sweating supply pipe, or a wet cabinet floor from a dishwasher that isn’t draining properly can draw ants and even give them a place to live. Carpenter ants in particular are drawn to damp or water-damaged wood.

Weather Swings

Extension entomologists note that heavy rain, drought, and very hot or cold spells can push ants indoors. The nest is often still outside.

Small Entry Gaps

Ants only need a hairline gap. Common routes include the gap under an exterior door, window sills, the seam where siding meets the foundation, and holes where pipes and wires pass through walls.

Identify Your Ant

A quick look helps you pick the right bait and spot a bigger problem. Catch a few ants on clear tape and zoom in with your phone’s camera.

Odorous House Ants

These are small, about 1/8 inch long, and blackish. They march in well-defined trails, and the giveaway is the smell: crush one and you’ll notice a rotten-coconut odor. They have a strong sweet tooth and often nest near moisture, which makes them a classic kitchen and bathroom ant.

Pavement Ants

Pavement ants are similar in size and color and easy to mix up with odorous house ants. Up close, they have two distinct bumps on the narrow waist and fine grooves on the head and thorax. Outside, look for small piles of soil pushed up through cracks in sidewalks, driveways, and patios. They often prefer protein and grease over sugar.

Carpenter Ants: A Different Problem

Carpenter ants are much bigger. Workers run roughly 3/8 to 1/2 inch, and most found in homes are black or red and black. They don’t eat wood, but they hollow it out to nest, leaving piles of coarse sawdust below the openings.

A few big ants wandering through the kitchen in spring may be scouts from an outdoor nest. Many winged ants indoors is a stronger sign that a nest is inside the walls. Because indoor nests are usually tied to current or past roof or plumbing leaks, treat carpenter ants as a moisture and wood problem first, and an ant problem second.

Symptoms, Causes, and Who Should Fix It

Symptom	Likely cause	DIY or pro?
Trail of tiny dark ants to sugar or fruit; smell like rotten coconut when crushed	Odorous house ants foraging from a nearby nest	DIY with sweet gel or liquid bait
Small ants ignoring sweet bait, going for crumbs, grease, or pet food	Pavement ants or another protein-loving species	DIY with protein or grease bait
Soil piles in sidewalk or patio cracks plus ants indoors	Pavement ant nest under slab or pavement	DIY with bait and sealing
Ants return every time it rains	Outdoor nest plus unsealed entry gaps	DIY: bait, then caulk and weatherstrip
Ants clustered under the sink or around the dishwasher	Leak or standing moisture	DIY leak fix and bait; plumber if the leak is inside a wall
Large black ants, sawdust piles, or many winged ants indoors	Carpenter ant nest in damp or damaged wood	Pro
Tiny ants that keep turning up in new rooms after you spray	Possibly pharaoh ants, whose colonies split when stressed	Pro

How to Get Rid of Kitchen Ants, Step by Step

Tools and supplies: ready-to-use ant bait (gel, liquid stations, or both), masking tape or wax paper, a flashlight, airtight food containers, dish soap, a sponge, a caulk gun, and a tube of silicone or siliconized acrylic caulk.

Safety first: read the entire bait label before you open it, even if you’ve used the product before. Place baits only where the label allows, and keep them out of reach of children and pets.

Step 1: Stop Spraying and Watch the Trail

Resist the urge to spray. Spray kills foragers, but the nest and queen are out of reach. Those foragers are the delivery service you need to carry poison home.

Follow the trail with a flashlight to see where the ants enter and where they’re headed. Those two points are where your baits belong.

Step 2: Figure Out Whether They Want Sugar or Protein

Ants fall roughly into sweet-lovers and protein- or grease-lovers, and some change preference through the year. Put a pea-sized dab of jelly and a separate dab of peanut butter on squares of masking tape right beside the trail. Check back in about two hours and see which one has more ants on it.

If the jelly wins, use a sugar-based bait. These usually contain boric acid, borax, or another slow-acting ingredient mixed into a sweet syrup or gel. If the peanut butter wins, look for a bait labeled for protein- or grease-feeding ants.

Step 3: Place Baits Right Next to the Trail

Put bait stations directly beside the trail and near the spot where ants enter the room. Don’t put bait on top of the trail, and don’t put it where you recently sprayed or cleaned with a strong product, since the residue can repel ants.

For gel in a tube or syringe, squeeze a small drop onto the non-sticky side of a piece of masking tape or a square of wax paper. Use several placements, not just one; bigger ants and bigger infestations need more bait points.

Step 4: Be Patient and Keep the Bait Fresh

Expect to see more ants for the first day or two, not fewer. That swarm around the bait is a good sign: workers are loading up and carrying it back to feed the queen and larvae.

Baits work slowly by design, and most infestations need several days of steady feeding. Check the baits daily and add more if a station is empty or a gel dab has dried out. Leave bait in place until you’ve gone a few days with no ants at all, even if they seem gone sooner.

Step 5: Switch Products if They Ignore the Bait

Ants can be picky. If they walk past the bait for a full day, switch from sugar to protein bait (or the other way), or try a brand with a different active ingredient.

Step 6: Clean Up the Trails and Food Sources

While baiting, sweep and wipe the rest of the kitchen with plain soapy water, but leave the area right around the baits alone. Put sugar, cereal, flour, and pet food in airtight containers, and rinse jars and cans before they go in the recycling.

Once the ants are gone, collect the used tape squares and empty stations, bag them, and throw them out. Wash the bait spots and the old trail path with soap and water to remove residue and the scent trail ants follow.

Step 7: Fix Leaks and Dry Out Damp Spots

Empty the cabinet under the sink and check with a flashlight for drips at the trap, supply lines, and shutoff valves. If the ants cluster near the dishwasher or fridge, check for pooled water underneath. If you find water coming from inside a wall, call a plumber rather than opening it yourself.

Step 8: Seal the Entry Points

After the colony is under control, seal the gaps you found in Step 1. Run a bead of caulk along cracked baseboards, window sills, and the holes where pipes enter the cabinet. Add or replace weatherstripping and the door sweep on exterior doors.

Outside, seal openings where siding meets the foundation and around hose bibs and cables. Sealing comes last on purpose: caulk first and the ants just find another way in.

What Not to Do

Don’t spray insecticide or strong cleaners near your baits. It kills the carriers and teaches the colony to avoid the spot.
Don’t apply any insecticide on counters, cutting boards, or other food-prep surfaces.
Don’t use repellent sprays or dusts if you suspect pharaoh ants. Stress can split one colony into several.
Don’t pull baits the moment you see fewer ants. Leftover workers and larvae can restart the problem.
Don’t use an outdoor-only product indoors, or mix your own pesticide blends. Use the product only as its label directs.
Don’t drill into walls or framing to chase a nest. Leave that to a pro.

When to Call a Professional

Most kitchen ant problems end with patient baiting. Call a licensed pest control company if you see any of these signs:

Large black or red-and-black ants along with sawdust piles or many winged ants indoors.
You’ve baited for two to three weeks, tried both sugar and protein baits, and ants are still coming.
Tiny ants keep spreading to new rooms, which can point to pharaoh ants.
You suspect a nest inside a wall, ceiling, or under a floor that you can’t reach.
Damp or damaged wood around a window, door, or the sink base with ants coming and going.

Pros have more experience, better equipment, and access to products homeowners can’t buy, including some carpenter ant treatments that only licensed applicators can use. For carpenter ants, the University of Kentucky’s extension entomologists note that locating and reaching a hidden nest is the hard part, so professional help is often the practical choice. None of the extension sources consulted for this guide list typical prices, so get two or three quotes and ask what’s included.

If carpenter ants are involved, also fix the moisture that attracted them. That might mean repairing a roof leak, clearing gutters, or tracking down a leaking water heater in a utility area next to the kitchen.

How to Prevent It

Prevention is mostly about giving scouts nothing worth reporting. Wipe counters and the stovetop every night, and sweep under the toaster, microwave, and fridge edge once a week. Store open food in jars or containers with tight lids, and keep ripe fruit in the fridge during ant season.

Pick up pet food bowls after meals instead of leaving them full all day. Take out kitchen trash and recycling often, and rinse containers first.

Keep the sink area dry. A sink that drains slowly leaves damp food residue in the basket and pipes, so it’s worth learning why your sink drains slowly and how to fix it. Food that collects in the disposal can draw ants too; if yours struggles to grind, see our guide to a garbage disposal that hums but won’t spin.

Outdoors, store firewood off the ground and away from the house, and trim plants so they don’t touch the siding. If you’re already walking the perimeter, it’s a good time to look under the eaves for paper nests, too; our wasp nest removal guide covers what to do if you find one.

FAQ

How long does it take for ant bait to work?

Baits can take 24 to 48 hours or longer to start working, and you may see more ants at first. Most small household infestations drop off after several days of steady feeding, and wiping out a whole colony can take a few weeks. Keep bait available the whole time.

Why do I have more ants after putting out bait?

That’s the bait working. Foragers recruit nestmates to a good food source, so more ants show up to carry the bait home.

Are ant baits safe around pets and kids?

Ready-to-use baits contain small amounts of active ingredient, but no pesticide is something a child or pet should get into. Follow the label exactly, use enclosed bait stations where possible, and place them behind appliances or inside cabinets kids and pets can’t reach. If someone swallows bait, contact Poison Control or your veterinarian and have the product label in hand.

Does vinegar get rid of ants?

Wiping a trail with vinegar or soapy water removes ants and the scent they follow, but it doesn’t touch the nest. The ants usually return along a new route. Use cleaning to support baiting, not replace it, and keep it away from the bait spots.

How do I know if I have carpenter ants or regular ants?

Size is the quickest clue: carpenter ant workers are about 3/8 to 1/2 inch, several times bigger than a typical 1/8-inch kitchen ant. Look for coarse sawdust near wood trim or baseboards and winged ants indoors. If you see those signs, have a professional inspect for a nest and a moisture problem.