Ant Control

We treat the ant species that actually invade CNY homes — including carpenter ants, which damage wood and need a different approach than nuisance ants.

Not all ants are the same problem. The little ants trailing across a kitchen counter are a nuisance; carpenter ants — the large black ants common throughout Central New York — tunnel into damp or damaged wood and can cause real structural damage over time. Telling them apart, and finding the nest, is most of the battle. A spray on the trail kills the ants you see and does nothing about the colony producing them.

We treat the ant species that actually invade CNY homes, with special attention to carpenter ants because they're the ant that matters most here. Our older housing stock and wet springs give them plenty of the moisture-damaged wood they favor — around leaky sills, roof edges, decks, and bathrooms. We locate the parent and satellite nests and treat so the whole colony is affected, not just the foragers.

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Carpenter ants, parent nests, and satellite nests

Carpenter ants are the ant that matters most in Central New York, and understanding how they nest explains why spraying a trail never works. A carpenter ant colony has a parent nest — typically outdoors in a tree stump, woodpile, or moisture-damaged wood — where the queen lives, plus one or more satellite nests that workers establish in nearby structures. Those satellite nests are often what ends up inside your walls: in the damp wood around a leaky window, a poorly flashed roof edge, a bathroom wall, or a porch column with wood-to-soil contact.

Because the colony is spread across multiple sites and the queen may never be in the part you can see, killing visible foragers accomplishes nothing lasting — and repellent sprays can actually make it worse by causing the colony to bud into additional satellite nests. Effective treatment uses non-repellent products and baits that workers unknowingly carry back and share, reaching the nests and the queen. It also means correcting the moisture that drew them, because carpenter ants seek out wood that has already been softened by water.

Unlike termites, carpenter ants do not eat wood; they excavate smooth galleries to nest, pushing out the shavings and insulation as the sawdust-like frass you find on sills and in the basement. The damage is slower than termite damage but real over years, which is why an established colony is worth treating properly rather than swatting the ones on the counter.

Signs of an ant problem

Large black ants indoors, especially at night or in spring — a classic sign of carpenter ants.
Small piles of what looks like sawdust (frass) near woodwork, windowsills, or the basement — carpenter ants pushing debris out of their galleries.
Faint rustling sounds inside walls or trim in a quiet room.
Steady trails of small ants to a food or moisture source in the kitchen or bathroom.
Winged ants indoors in spring, which often means a mature nest is nearby.

How we treat it

1
Identification
We identify the species — carpenter ants, pavement ants, odorous house ants, and others each call for a different strategy — and look for signs of structural nesting.
2
Nest location
We trace trails and moisture to find the parent nest and any satellite nests, indoors and out. This is what makes treatment stick.
3
Targeted treatment
We use non-repellent products and baits that ants carry back to the colony, treating voids, entry points, and the exterior perimeter.
4
Moisture & conducive-condition notes
Carpenter ants follow moisture. We point out the leaks, gutters, and wood-to-soil contact fueling the problem so it doesn't recur.
5
Follow-up
We confirm the colony is knocked down and re-treat if foragers persist.

What to expect

We aim to treat the colony, not just the trail, so results build over a couple of weeks as bait moves through the nest.
For carpenter ants, we'll assess whether any wood needs a closer look for damage and moisture repair.
Exterior perimeter treatment helps keep new colonies from moving in from nearby trees and woodpiles.
If the same nest keeps producing, we go back and address it — that's covered under the guarantee.

Seasonality in Central NY

Spring (Apr–Jun) is prime ant season in CNY. Colonies wake up, foragers appear, and winged reproductives may swarm — the best time to treat before satellite nests establish.
Summer: activity continues, with carpenter ants most visible at dusk. Moisture from summer storms can expand nesting sites.
Fall: activity tapers as ants prepare to overwinter, often inside wall voids in heated homes — which is why you sometimes see them on a warm winter day.

What it costs

Ant treatment is priced by the species, the extent of the infestation, and whether structural nesting is involved. A pavement-ant trail is a simpler job than a carpenter-ant colony nesting in a moisture-damaged wall.

We quote honestly after identifying what you actually have — and if carpenter ants have caused damage that needs a carpenter's attention, we'll tell you rather than paper over it.

How to prevent it

Fix roof, gutter, and plumbing leaks — carpenter ants need moisture-softened wood.
Keep firewood off the ground and away from the house; trim branches touching the roof.
Seal gaps around windows, sills, and utility lines.
Address wood-to-soil contact on decks, porches, and siding.

Is it a carpenter ant — and how can you tell?

Carpenter ants are the large ants — often a quarter to a half inch — that are usually black, sometimes dark red and black, with a single node between thorax and abdomen and an evenly rounded upper thorax. In Central New York they most often reveal themselves by appearing indoors on warm days in late winter and spring. A key sign is frass: small piles of what looks like coarse sawdust mixed with insect parts, pushed out of the galleries they excavate. Finding frass beneath a windowsill, door frame, or baseboard is a strong indication of a nest in the structure.

One identification that genuinely matters is carpenter ant swarmers versus termite swarmers, since both produce winged reproductives. Carpenter ants have bent (elbowed) antennae, a pinched waist, and two pairs of wings of different lengths; termites have straight antennae, a broad waist, and two pairs of equal-length wings. New York is largely outside the zone of heavy termite pressure, so winged ants indoors are far more likely carpenter ants — but the distinction is worth getting right, and it's one we confirm on inspection.

The smaller ants most homeowners see are different animals with different fixes. Odorous house ants form persistent trails to sweets and give off a faint rotten-coconut smell when crushed; pavement ants trail along walkways, driveways, and slab edges and often nest under concrete. Neither damages wood. Because carpenter ants, odorous house ants, and pavement ants call for different strategies, the identification step isn't academic — it's what determines whether we're protecting your structure or just clearing a kitchen trail.

Carpenter ants: the ant that matters in Central New York

While several ant species turn up in Finger Lakes homes, the one that dominates — and the one that can actually damage a house — is the carpenter ant. Central New York's wooded lots, mature trees, and damp, wood-framed older homes are ideal habitat. Carpenter ants don't eat wood the way termites do; they excavate it to build nests, hollowing out galleries in moist or previously water-damaged wood around roof edges, windows, sills, decks, and anywhere a small leak has softened the framing.

The tell in our area is spring activity indoors. When large black ants — often a quarter to a half inch long — appear inside on warm early-season days, it frequently means a parent colony is nesting in or near the structure and has been active long enough to send out satellites. Because carpenter ants prefer moist wood, they map closely onto exactly the vulnerable spots common in older Ithaca-area homes: around chimneys and skylights, behind gutters, under decks, and near basement windows.

Other species show up too — pavement ants trailing along walks and slab edges, and odorous house ants forming the fast, persistent kitchen trails many homeowners recognize. Each responds to a different approach, which is why identification comes first. But in this region, the carpenter ant is the one where getting it right protects not just your kitchen but your structure.

Property damage and contamination

New York is largely outside the range where aggressive subterranean termites are a constant threat, which means carpenter ants are the region's primary wood-destroying insect concern for many homeowners. Over time, an established colony excavating galleries in structural or trim wood can cause real damage, particularly because the ants are usually exploiting wood that is already moisture-compromised — so their presence often flags a hidden leak or ventilation problem that needs attention on its own.

The other ant species are less about structure and more about contamination and nuisance. Pavement ants and odorous house ants forage across counters, pantries, and pet-food areas, trailing between the outdoors and your food. While they are not major disease vectors, no one wants ants in the sugar or streaming along the backsplash, and a persistent indoor trail signals a nest that will keep resupplying until it's addressed at the source.

Because ants operate as colonies with a queen (or several) hidden away, the visible trail is just the supply line. Damage and contamination both continue as long as the colony is alive, which is why knocking down foragers without reaching the nest gives only temporary relief. The goal is always the colony, not the ants on the counter.

Why spraying the trail can make ants worse

The instinct with a visible ant trail is to spray it, but with many species — carpenter ants especially — a repellent spray can trigger 'budding,' where a stressed colony splits and relocates into multiple new nests. You kill the ants you can see and end up with two problems where you had one. This is the single most common reason DIY ant control seems to work for a week and then comes back worse.

Professional control uses non-repellent products and targeted baits that foragers carry back to the nest, moving the active ingredient through the colony to the queen. Combined with correct species identification and finding the nest's likely location — reading the trails, the moisture clues, and the structural vulnerabilities — this reaches the source instead of scattering it. For carpenter ants, that often includes locating and addressing the moisture problem that drew them in the first place, so the fix actually holds.

There is also value in a professional simply knowing what they're looking at. Carpenter ants, pavement ants, and odorous house ants look similar to most homeowners but call for different strategies, and treating the wrong way wastes time while the colony grows. Getting the identification and the method right the first time is what separates a lasting result from an endless cycle of trailing ants each spring.

Frequently asked questions

How do I know if these are carpenter ants?

Carpenter ants are large (about ¼ to ½ inch) and usually black. Frass that looks like sawdust near woodwork, activity at night, and winged ants indoors in spring all point to carpenter ants nesting in the structure.

Do carpenter ants actually damage the house?

They can. Unlike termites they don't eat wood, but they excavate galleries in damp or damaged wood to nest, and an established colony left alone for years can weaken structural members. Moisture is the common thread.

Why didn't store-bought spray work?

Repellent sprays kill foragers and can actually split the colony into more satellite nests. We use non-repellent products and baits that ants carry back to the nest, treating the source instead of the symptom.

Where do carpenter ants nest?

In moisture-damaged wood: around leaky roofs and gutters, window and door frames, decks, porch columns, and bathroom or kitchen walls. There's often a parent nest outdoors and satellite nests inside.

What's the difference between carpenter ants and termites?

Both damage wood, but carpenter ants leave clean galleries and sawdust-like frass, while termites eat the wood and leave mud tubes. If you're unsure, we can identify it — and we offer WDI inspections for real-estate purposes.

How long until the ants are gone?

Trails usually thin out within days, but fully affecting the colony through bait takes a couple of weeks. We follow up to make sure the nest is knocked down, not just the visible ants.

Will they come back next spring?

Not if the nest is eliminated and the moisture conditions that drew them are corrected. We treat the source and point out the leaks and wood-to-soil contact fueling the problem.

Do you treat other ants besides carpenter ants?

Yes — pavement ants, odorous house ants, and the other nuisance species that trail through CNY kitchens. Each has a different treatment, which is why identification comes first.

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

Carpenter ants are the large (¼–½ inch) black ants that tend to appear indoors on warm spring days, sometimes with faint rustling in walls or small piles of what looks like sawdust (frass). Smaller ants trailing along counters or walkways are usually odorous house ants or pavement ants. We identify the species on the first visit, because each needs a different approach.

Do carpenter ants cause as much damage as termites?

They work differently — they excavate wood to nest rather than eat it — so damage accumulates more slowly, but an established colony in structural wood can still cause real problems over time. In our part of New York, where aggressive termites are less common, carpenter ants are the wood-destroying insect most homeowners actually need to watch for.

Why do the ants come back a week after I spray them?

Repellent sprays can cause carpenter ant colonies to 'bud' — split and relocate into several new nests — so you end up with more problems, not fewer. Non-repellent baiting reaches the queen and colony at the source, which is why professional treatment holds where spraying the trail doesn't.

Carpenter ants keep showing up near a window/roofline — why there?

Carpenter ants prefer moist or previously water-damaged wood, so recurring activity in one spot usually points to a hidden leak or condensation problem there — around a window, chimney, gutter, or skylight. Part of solving it for good is finding and flagging that moisture source, not just treating the ants.

Our guarantee

Covered by our defined-term service guarantee: if covered pests return during the service period, we re-treat at no additional charge. See Our Guarantee for terms and exclusions.

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