Ant Control

Ants top the list of pest complaints in the Triangle by a wide margin, and it's usually a line of them marching across a kitchen counter that finally gets someone to stop reaching for the spray bottle and call a professional instead. The spray isn't useless — it does knock ants down — which is exactly the problem, since a temporary fix is what keeps people spraying the same spot every few weeks instead of solving it.

Why Ants Get Into a House in the First Place

Ants come inside chasing three things: food, water, and an opening. Sugary spills, syrup, dropped fruit, pet food left out overnight, and even a thin film of grease on a stovetop are all enough to start a trail — ants recruit with pheromones, so one scout finding a food source can turn into a steady line of workers within hours. Water is just as strong a draw as food, sometimes stronger: a slow drip under a sink, condensation on a pipe, or a pet's water bowl can pull ants in even when the countertops are spotless.

Entry points tie the whole picture together. Raleigh's mix of settled older homes and newer, builder-grade construction both leave plenty of small openings — window and door frames, utility line penetrations, foundation vents, gaps in baseboard trim. None of these need to be large; most ant species can squeeze through something smaller than a dime.

A few species-specific patterns are worth knowing:

• Odorous house ants — small, dark, and far and away the most common ant complaint across the Triangle — are pulled hard toward anything sweet and tend to trail indoors right after rain, when their outdoor nests flood out.
• Carpenter ants are larger and, unlike most ants, hollow out wood to nest in rather than eat. Finding them near a bathroom, kitchen, or any area with a moisture history is worth treating as a signal to check for a wood-moisture problem alongside the ant issue itself.
• Fire ants are mostly an outdoor yard problem in this area, building visible mounds in open lawn and needing a different approach entirely from an indoor trailing species.

Getting Rid of Ants: Why DIY Often Falls Short

Boric acid baits, diatomaceous earth, peppermint or tea tree oil, and store-bought sprays can all knock down the ants that are visible in the moment, but visible ants are a small fraction of the actual colony. The nest — and the queen — is almost always somewhere a spray never reaches: inside a wall void, under a slab, or out in the yard. Repellent sprays can actually make things worse with certain species, since disturbing a trail sometimes causes a colony to split into several smaller nests instead of staying put as one target.

A professional approach starts with correctly identifying the species, since a carpenter ant problem — which can signal wood damage — gets handled very differently from odorous house ants trailing in from an outdoor mulch bed. From there, treatment generally combines:

• Non-repellent insecticides applied to trails and entry points. Ants can't detect these, so they walk right through and carry the product back to the rest of the colony.
• Targeted baiting placed exactly where ants are actively feeding, working on the same delayed principle so it spreads through the colony instead of only killing on contact.
• Perimeter treatment around the foundation, cutting off new trails before they ever reach the inside of the house.

Most homeowners see a noticeable drop in activity within a few days, with full elimination typically taking one to two weeks as the treatment works through the colony — slower than an instant-kill spray, but the difference between ants gone for good and ants gone for a week.

Keeping Ants Out Between Visits

A handful of habits make a real difference in how quickly ants find a way back in:

• Wipe counters and sweep after cooking, especially near stovetops, since even a small amount of residual grease or sugar is enough to start a new trail overnight.
• Keep pantry staples in sealed containers rather than the bags and boxes they came in — sugar, cereal, pet food, and flour are common indoor targets once a trail is established.
• Fix small leaks promptly. A dripping faucet or a sweating pipe is often a bigger draw than any food source, particularly during hot, dry stretches when outdoor water sources dry up and ants move indoors specifically looking for moisture.
• Pull mulch and vegetation back from the foundation. Mulch beds pressed directly against the house — common in a lot of Triangle landscaping — give outdoor colonies a staging area just inches from an entry point.
• Seal gaps you've already seen ants use — window frames, utility penetrations, foundation vents. This won't stop every ant, but it removes the easiest, already-proven paths inside.

None of this replaces treatment once a colony is established — a cleaner kitchen alone won't erase a pheromone trail that's already there — but it meaningfully stretches the gap between visits and makes any treatment that does happen work better and last longer.

What Ant Treatment Costs

A standalone ant treatment is usually folded into a standard quarterly pest control visit rather than priced separately, since keeping ants out is often the exact reason people sign up for ongoing service in the first place. Carpenter ants are the exception — locating the actual nest and checking for an underlying moisture problem takes more diagnostic time than a routine odorous house ant trail, so expect that work to cost more than a standard visit. Most companies will treat an active ant problem on the first visit of a new plan at no extra charge.

Frequently Asked Questions

How do you get rid of carpenter ants specifically? Locating the nest is the priority, since carpenter ants nest inside wood rather than trailing to an outdoor food source the way most ants do. A thorough treatment also checks for a moisture problem nearby, since carpenter ants are drawn to wood that's already softened by water damage.

Why do ants show up in winter when it's cold outside? Cold weather pushes colonies to seek stable warmth and a steady food source indoors, and winter ant activity often means a colony has already established a nest inside the structure rather than just visiting from outdoors, which is a different and usually more involved problem to treat.

What's the best way to deal with "sugar ants" in the kitchen? "Sugar ants" is just a common name for odorous house ants, and a non-repellent bait beats a contact-kill spray every time here — spraying scatters the colony and can make the trail harder to track, while bait gets carried back to where the colony actually lives.

Do I need a separate ant treatment or is it covered under general pest control? For most homes, a standard quarterly pest control visit already includes ant treatment as part of the routine service. A carpenter ant infestation is the main case where a company might treat it as its own line item due to the added diagnostic work involved.