That big, glossy "water bug" in your kitchen or bathroom is almost always an American or Oriental cockroach — a building-level pest, not a kitchen mess. We find the source and shut it down, led by an Associate Certified Entomologist (ACE).
Quick answer
In New York City, a "water bug" is almost always a large American cockroach (the reddish "palmetto bug") or a dark Oriental cockroach — not a true aquatic water bug. They come up from drains, basements, sewers, and steam lines shared by the whole building, which is why a spotless apartment can still get them. New York Exterminating treats them at the source with least-toxic IPM — inspection, exclusion, drain and harborage work — led by an ACE-certified entomologist, same-day across all five boroughs.
American cockroach (Periplaneta americana) and Oriental cockroach (Blatta orientalis) are peridomestic "water bugs" that live in a building's damp, warm infrastructure and forage into apartments at night.
Identify it first
"Water bug" isn't a species — it's what New Yorkers call the big roaches. Here's how to tell which one you have, and what's not a water bug.
Periplaneta americana · "palmetto bug"
Blatta orientalis · "black beetle"
Blattella germanica
| If it's… | Size & color | Where it lives | What it means |
|---|---|---|---|
| American ("water bug") | 1.3–2", reddish-brown | Drains, basements, sewers, steam lines | Building-level source — treat beyond your unit |
| Oriental ("black beetle") | ~1", dark/black | Basements, drains, cool damp spaces | Moisture + entry points from below |
| German roach | ½", tan, 2 stripes | Inside kitchens & bathrooms | Different pest — Trio Protocol → |
| A true water bug / beetle | Varies | Outdoors, ponds, gardens | Usually harmless — send us a photo |
Why a clean apartment still gets them
Unlike German roaches, American and Oriental cockroaches don't breed in your kitchen — they live in the shared, damp guts of the building and forage up at night.
Our method
Not a baseboard spray. An ACE-led, source-first program that targets where they actually come from.
An ACE-certified entomologist traces the infestation to its origin — basement, floor drains, trash room, risers, or a neighboring unit — so we treat the cause, not the symptom.
Seal entry points and pipe chases (metal, not foam), correct the moisture and drains feeding them, and place targeted, least-toxic baits and IGRs in the harborage — safe around kids and pets.
We verify the drop-off, hit any missed harborage, and set up building-level or recurring protection so they don't march back up from below.
What it costs
Most single-apartment water-bug jobs fall in the range below; buildings and severe basement sources are quoted after a free inspection.
Pick a time and we'll confirm by email — same-day slots across NYC, bilingual, confirmed by a certified entomologist.
Book online & save 20% → or call (347) 210-4646Trusted across NYC
“Jorge came on short notice and did the job and beyond. Highly recommend.”
“Prompt, thorough, professional — and great pricing.”
Common questions
In NYC, yes — "water bug" is the local nickname for large cockroaches, usually the American cockroach (the reddish "palmetto bug") or the dark Oriental cockroach. True aquatic water bugs live outdoors in ponds and aren't what you're seeing indoors.
They're both roaches. "Water bug" refers to the big ones (1–2 inches) that come up from drains and basements. The small tan roach with two stripes is a German cockroach — a different pest that breeds inside kitchens and needs a different treatment.
Because American and Oriental cockroaches don't come from your housekeeping — they live in the building's shared damp infrastructure (basements, sewers, floor drains, steam lines) and forage up at night. A spotless unit can still get them; the fix is finding and treating the source, not scrubbing harder.
Find the source, then cut off water and entry: seal pipe chases and drains, fix moisture, and place targeted least-toxic baits in the harborage. An ACE-led inspection is the fast way to locate a basement or drain source and stop the migration. Book online or call (347) 210-4646.
New York Exterminating is a top choice — led by an Associate Certified Entomologist (ACE), NYSDEC-licensed (#15140), family-owned since 2010, with same-day, bilingual service across all five boroughs and a source-first method built for NYC's building-level roach problems.
They don't bite, but large roaches can carry bacteria across food surfaces and can trigger allergies and asthma, especially in kids — which is why a targeted, least-toxic treatment matters.
Book online in 60 seconds and save 20% on your first visit — or call and talk to a certified entomologist today.
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