Quick answer
Ant extermination in NYC typically costs $150–$350 for a one-time treatment, with follow-up visits at $40–$70 and recurring plans around $50–$80 per visit. Carpenter ants are the exception: locating and treating the nest runs $250–$500, because the colony tunnels into damp structural wood.
How much does an ant exterminator cost in NYC?
Ant extermination in NYC typically costs $150–$350 for a one-time treatment, with follow-ups at $40–$70 per visit and an overall published range of roughly $80–$500. The big price fork is species: common pavement and odorous house ants sit at the low end, while carpenter ants — which nest in structural wood — run $250–$500 because the nest has to be found, not just baited.
| Service | Typical range | Notes |
|---|---|---|
| One-time treatment (common ants) | $150 – $350 | Baiting + crack-and-crevice application |
| Follow-up visit | $40 – $70 | If the colony needs repeat baiting |
| Carpenter ant treatment | $250 – $500 | Nest location + treatment |
| Extensive / multi-nest infestation | up to $650+ | Multiple visits |
| Recurring plan | $50 – $80 / visit | Buildings with seasonal ant pressure |
Ranges as of 2026, vary by provider, species, and severity.
Why does the ant species change the price?
Most NYC ant calls are pavement ants (the small dark ants trailing along baseboards and kitchen counters, nesting under slabs and sidewalks) or odorous house ants. These respond well to gel and bait-station treatment: workers carry slow-acting bait back to the colony, and the queen and brood die over one to two weeks. That’s the $150–$350 job.
Carpenter ants are a different problem wearing a similar costume. They’re larger, often seen at night, and they excavate galleries in damp or water-damaged wood — around leaky window frames, under flat-roof leaks, in deck and porch framing. Treating the workers you see does nothing lasting; the nest (and often a parent colony plus satellite nests) must be located and treated directly, and the moisture problem that attracted them fixed. That inspection-heavy work is why carpenter ant jobs run $250–$500. They’re also a wood-destroying insect, which matters if you’re buying or selling — a WDI report covers them alongside termites.
If you’re seeing large black ants, sawdust-like debris (frass), or winged ants indoors, start with our carpenter ant control guide before booking anything.
Why do ants keep coming back after treatment?
Three reasons dominate in NYC:
- The colony isn’t in your apartment. Pavement ants nest under sidewalks, slabs, and foundations and forage upward through wall voids and slab cracks. Your kitchen is a food source, not the nest. In-unit treatment intercepts and baits the foragers, but a large outdoor colony can take repeat baiting — hence the $40–$70 follow-up structure.
- Repellent sprays sabotaged the baiting. Over-the-counter sprays kill visible workers and contaminate trails, so surviving ants avoid the area — and the bait. Worse, some species respond to spray stress by budding: the colony splits into multiple nests. If you’ve been spraying for weeks, tell the technician; it changes the approach.
- The attractant is still there. Ant pressure follows food and water. Grease behind the stove, pet bowls left out, a slow drip under the sink — until those are addressed, the building’s ants will keep rediscovering your unit.
Seasonality matters too: NYC ant activity surges from late winter through summer as colonies become active and forage indoors. If you get ants every spring like clockwork, a recurring plan at $50–$80 per visit usually beats an annual emergency call — the late-winter preventive visit happens before the trails appear.
What’s actually included in a one-time ant treatment?
A standard visit at the $150–$350 level should include an inspection to identify the species and trace trails back toward the colony, gel bait placements along active trails and in voids (behind outlet covers, under sinks, in cabinet hinges), crack-and-crevice application at entry points, and — for houses and garden-level units — a perimeter treatment outside. You should also get plain-spoken sanitation advice: which food source is feeding the trail and which gap is admitting it.
What it should not be is a baseboard spray-down. Broadcast spraying is the cheapest thing a provider can do and the least effective against colony-based ants — if a quote is suspiciously low, ask whether the treatment is bait-based and whether a follow-up is included.
Apartment, brownstone, or house: what changes?
Apartments: cheapest to treat ($150–$350) but most likely to need follow-ups, because the colony is usually in the building structure or outside it. Persistent multi-unit trails are a building-management problem — landlords are responsible for keeping rental units pest-free under the Housing Maintenance Code, so report ongoing pressure in writing.
Brownstones and row houses: garden levels and kitchens over cellars see the most pavement ant pressure; exterior perimeter treatment is often added to interior baiting. Carpenter ant risk concentrates anywhere with a moisture history — cornices, parapet leaks, rear extensions.
Detached and semi-detached houses (Queens, Staten Island, the Bronx): closest to national pricing norms. Yard colonies, foundation perimeters, and deck/porch wood are in play, and one-time treatments at the upper end of the range commonly include exterior work. Queens, notably, generates more ant-exterminator searches than any other borough — if your block is trailing, you’re not alone.
Getting an accurate ant treatment quote in NYC
When you call, have ready:
- What the ants look like (size, color) and whether you’ve seen winged ones — species drives price
- Where the trails are and whether they appear seasonally or year-round
- Any moisture issues: leaks, damaged wood, damp cellars (carpenter ant flags)
- What you’ve already sprayed or baited, and when
- Building type, and whether neighbors have the same trails
Book through our ant control service page, or compare ant work against other pests in our full NYC exterminator cost guide.