Not All Roaches Are the Same—Treatment Shouldn’t Be Either

See a big roach scurrying across your kitchen floor? That’s probably an American cockroach wandering in from outside. Finding small tan roaches in your cabinets? Those are German roaches—a completely different problem requiring completely different treatment.

Most people don’t realize New York has multiple cockroach species, each with different biology, behavior, and treatment requirements. Spraying the same chemical everywhere doesn’t work. You need species-specific treatment from someone who knows the difference.

We’ve been eliminating cockroaches in NYC since 2010. We identify which species you’re dealing with and treat accordingly.

Dealing with roaches? Call +1 (347) 210-4646 or request service online. We’ll identify the species, explain what’s happening, and eliminate them.

The Three Main Cockroaches in NYC

American Cockroaches (Periplaneta americana)

What they look like: Large (1.5-2 inches), reddish-brown, oval-shaped with yellowish figure-8 pattern behind the head. These are the big roaches you see on sidewalks and in basements.

Where they live: Outdoors in sewers, storm drains, mulch, and leaf litter. They come inside through cracks, gaps around pipes, floor drains, and ventilation openings. They prefer damp basements, crawlspaces, and utility rooms.

Why they’re inside: Looking for moisture, warmth, or food. They’re not infesting your kitchen cabinets—they’re usually just passing through or hiding in damp areas. Common in buildings with basement moisture issues, plumbing leaks, or poor perimeter sealing.

Treatment approach: Perimeter barrier treatments, crack-and-crevice applications in entry points, granular treatments in crawlspaces and mechanical rooms, moisture control recommendations, exclusion work to seal gaps.

Oriental Cockroaches (Blatta orientalis)

What they look like: Medium-sized (1-1.25 inches), dark brown to black, shiny appearance. Males have short wings, females have tiny wing stubs. Often called “water bugs” because they’re always near moisture.

Where they live: Outdoors in mulch, leaf piles, sewers, and storm drains. Indoors they congregate in damp basements, crawlspaces, around floor drains, near leaking pipes, and in utility areas. They can’t climb smooth vertical surfaces well.

Why they’re inside: Seeking moisture and cool, dark hiding spots. They’re almost always found in basements, bathrooms, and areas with plumbing issues. They die quickly in dry conditions, so if you’re seeing them, you probably have a moisture problem.

Treatment approach: Moisture source elimination (fix leaks, improve drainage), targeted applications in harborage areas, floor drain treatments, perimeter exclusion, crawlspace and basement applications, dehumidification recommendations.

German Cockroaches (Blattella germanica)

What they look like: Small (½ inch), light tan to brown with two dark parallel stripes behind the head. These are the kitchen and bathroom invaders.

Where they live: Exclusively indoors. They complete their entire life cycle inside your home—in cabinets, behind appliances, inside wall voids, in electrical outlets, anywhere warm with food and moisture access.

Why they’re inside: They were brought in (furniture, boxes, bags, neighboring apartments). Unlike American and Oriental roaches that wander in from outside, German roaches are transported. Once established, they breed explosively—one female can produce 30,000 offspring in a year.

Treatment approach: This requires a specialized elimination program, not standard roach treatment. See our dedicated German Cockroach Elimination page for details. Treatment includes rotating gel baits, insect growth regulators, crack-and-crevice applications, and multiple follow-up visits over 6-8 weeks.

Why NYC Buildings Have Cockroach Problems

Old infrastructure with endless entry points – Most NYC buildings were constructed before modern pest-proofing. Gaps around pipes, cracks in foundation walls, deteriorated mortar, open utility chases, floor drain connections—older buildings have dozens of cockroach entry points. Even newer construction often leaves gaps during renovation work.

Damp basements and plumbing issues – American and Oriental cockroaches thrive in moisture. Basement seepage, condensation on pipes, slow drains, leaking plumbing—these create perfect conditions. Many NYC buildings have perpetual moisture issues that attract roaches continuously.

Shared walls and connected buildings – Attached row houses, apartment buildings, and connected basements create roach highways. Your neighbor’s problem becomes your problem. Roaches travel through wall voids, shared plumbing chases, and utility corridors.

Year-round warmth from heating systems – Heated buildings keep roaches active and breeding year-round. There’s no winter die-off. German roaches especially benefit from constant indoor temperatures, reproducing continuously without seasonal slowdown.

Dense urban environment with endless food – Garbage rooms, sidewalk trash, restaurant dumpsters, food service establishments—NYC provides unlimited food sources. American cockroaches thrive in sewer systems fed by restaurant and residential waste.

Construction and renovation activity – When walls get opened, roaches scatter. Demolition creates new harborage in debris. Construction crews move between sites, accidentally transporting German roaches. Renovation often makes existing roach problems worse before they get better.

Delayed treatment allows establishment – People ignore a few big roaches thinking they’re harmless. Meanwhile, if those are American or Oriental roaches, they’re breeding outside and more are coming in. If they’re German roaches, the population is exploding inside your walls.

Our Cockroach Control Process

Step 1: Species Identification & Inspection

We identify which cockroach species you’re dealing with. This determines everything else about the treatment. We locate harborage areas, entry points, moisture sources, and food access. We assess infestation severity and explain what’s causing the problem.

Different species require completely different approaches:

• American/Oriental roaches: Focus on exclusion, perimeter treatment, moisture control
• German roaches: Requires intensive indoor treatment program over multiple weeks

Step 2: Customized Treatment Plan

Based on species identification and property conditions, we develop a targeted treatment plan. This includes:

• Treatment methods (baits, residual sprays, dusts, growth regulators)
• Number of visits required
• Preparation instructions
• Prevention recommendations
• Expected timeline for elimination

We explain everything upfront—no surprises, no upselling.

Step 3: Targeted Treatment Application

For American & Oriental Cockroaches:

• Perimeter barrier treatments around building foundation
• Crack-and-crevice applications at entry points (pipe penetrations, gaps, drains)
• Residual applications in basements, crawlspaces, utility rooms
• Granular applications in exterior harborage areas
• Floor drain treatments to prevent sewer entry
• Exclusion recommendations (sealing gaps, repairing screens, fixing drainage)

For German Cockroaches:

• Multi-visit elimination program over 6-8 weeks
• Rotating gel baits in 50-100+ placement points
• Insect growth regulators to sterilize populations
• Crack-and-crevice applications in harborage areas
• Void treatments behind wall-mounted fixtures
• Follow-up visits every 2 weeks to break breeding cycle

Step 4: Follow-Up & Prevention

American and Oriental roaches typically require 1-2 follow-up visits to ensure elimination and catch any stragglers. German roaches require multiple scheduled follow-ups as part of the elimination program.

We provide recommendations for long-term prevention:

• Moisture control (fix leaks, improve ventilation, use dehumidifiers)
• Exclusion work (seal gaps, install door sweeps, repair screens)
• Sanitation improvements (reduce clutter, clean drains, manage garbage)
• Monitoring (sticky traps to detect new activity early)

Step 5: Documentation & Monitoring

All customers get access to our online portal with service history, treatment logs, photos, and follow-up schedules. We track results and adjust approaches if needed.

How Long Does Cockroach Control Take?

American & Oriental Cockroaches:

• Initial treatment shows results within 1-2 weeks
• Follow-up at 2-3 weeks to catch remaining roaches
• Most infestations resolved within 30 days
• Prevention measures reduce re-entry long-term

German Cockroaches:

• Requires 6-8 week elimination program
• Visible activity drops after first 2 weeks
• Near-zero activity by week 6-8
• Follow-up visits every 2 weeks are critical
• See our German Cockroach Elimination page for detailed timeline

Timeline depends on infestation severity, building conditions, and whether we can address contributing factors (moisture issues, neighboring infestations, structural gaps).

Warning Signs You Have Cockroaches

Visual sightings:

• Big reddish-brown roaches in basements or bathrooms (American)
• Dark black roaches near drains or damp areas (Oriental)
• Small tan roaches in kitchen or bathroom, especially at night (German)
• Seeing roaches during daytime (indicates high population)

Droppings:

• Small black pepper-like droppings along baseboards, in cabinets, behind appliances
• Droppings near food storage areas or water sources
• Smear marks (brown streaks) on walls near harborages

Odor:

• Musty, oily smell in heavily infested areas
• Strong odor in closed cabinets or behind appliances

Egg cases:

• Small brown capsules (¼-½ inch) in cabinet corners, behind appliances
• German roach egg cases are light brown and smaller
• American roach egg cases are dark brown and larger

Shed skins:

• Cockroaches molt multiple times as they grow
• Finding shed skins indicates breeding populations

If you’re seeing these signs, you have an active infestation that won’t resolve on its own.

Why Professional Treatment Works Better Than DIY

Species identification matters – Most people can’t tell cockroach species apart. American roaches need outdoor perimeter treatment. German roaches need intensive indoor baiting. Wrong identification means wrong treatment and wasted time.

Store-bought sprays often make it worse – Repellent sprays scatter German roaches into new areas, spreading the infestation. They create “bait aversion” making professional baits less effective later. They kill visible roaches but don’t eliminate harborages.

Professional products are more effective – We use commercial-grade baits, non-repellent products, insect growth regulators, and formulations not available to consumers. These are specifically designed for resistance-prone populations.

Treatment placement is critical – Cockroaches live in cracks, voids, and hidden harborages. Surface spraying doesn’t reach them. Professional crack-and-crevice treatment puts product where roaches actually live.

Multiple visits break the breeding cycle – One treatment doesn’t eliminate eggs or newly hatched nymphs. Professional programs return on schedules designed to catch all life stages before they reach breeding age.

We address root causes – Moisture problems, entry points, sanitation issues, structural gaps—we identify what’s attracting and allowing roaches in, not just killing visible ones.

Cockroach Prevention After Treatment

Once we’ve eliminated the current infestation, keep them from coming back:

Moisture control:

• Fix plumbing leaks immediately
• Use dehumidifiers in damp basements
• Improve ventilation in bathrooms and kitchens
• Clean and maintain floor drains regularly

Exclusion work:

• Seal gaps around pipes and utility penetrations
• Install door sweeps on exterior doors
• Repair damaged window screens
• Fill cracks in foundation walls and around baseboards

Sanitation:

• Clean up food spills immediately
• Store food in sealed containers
• Take garbage out regularly
• Clean behind and under appliances
• Reduce clutter that provides hiding spots

Monitoring:

• Place sticky traps in key areas to detect new activity early
• Schedule periodic inspections in high-risk properties
• Address moisture issues before they attract new roaches

In multi-unit buildings, coordinate with neighbors and building management. Your unit can be perfect, but if roaches are breeding next door, they’ll eventually migrate back.

Get Effective Cockroach Control

Look, cockroaches are disgusting. They contaminate food, trigger allergies and asthma, and carry disease organisms on their bodies. The longer you wait, the worse it gets.

Here’s the thing: You need the right treatment for the right species. We identify what you’re dealing with and treat accordingly. No guessing, no one-size-fits-all approach.

Call us at +1 (347) 210-4646 or request service online. We’ll inspect, identify the species, and start treatment within a week.

New York Exterminating, Inc.
1115 E 13th St, Brooklyn, NY 11230
Licensed & Certified Since 2010

Cockroach-free homes start with proper identification and treatment.