Every June, we walk into NYC apartments and find the same things: a grease film around the back of the stove, crumbs accumulated under the refrigerator drip tray, cardboard boxes stacked in corners. None of it looks alarming on its own. Together, it reads like a pest welcome mat.
New York City is home to an estimated 2.4 billion cockroaches—a figure that NYC Health tracks as a genuine public health concern. Summer doesn't create new pest populations so much as it activates the ones already living in your building's walls, basement, and shared utility spaces. Heat accelerates their breeding cycles, and when interior temperatures climb, they move up and in. The apartments they target are the ones that offer them what they need: food residue, water, and warm hiding spots.
We've been cleaning apartments across neighborhoods from Astoria to Carroll Gardens to Washington Heights for years. What follows is what we actually find—and what a targeted deep clean does about it.
This is the single most reliable indicator we see. The area behind and beneath the burners accumulates cooking grease that's nearly invisible under normal lighting but becomes obvious when you pull the stove out from the wall. Cockroaches are attracted to grease specifically—it's a food source and a scent trail. A thorough degreasing of the stove area, including the wall behind it and the floor underneath, eliminates one of their primary attractants.
Last month we cleaned a pre-war one-bedroom in Jackson Heights where the tenant had lived for six years without ever pulling the stove out. The layer of grease on the baseboard behind it was close to a quarter-inch thick. The tenant had seen roaches "occasionally" and assumed it was building-wide. After the clean, they called us back two weeks later to say the activity had dropped off noticeably. Cleaning doesn't eradicate an infestation—but it removes the reason to stay.
The plastic tray underneath the refrigerator collects condensation water. In summer, NYC humidity means this tray fills faster, and if it's never emptied, it becomes a standing water source—which is just as important to pests as food. We pull and empty this tray on every deep clean. Most people have never seen theirs. Some haven't been emptied in years.
The cabinet under the kitchen sink is one of the most pest-favorable environments in any apartment: dark, slightly warm from the pipes, and often damp from minor drips. We pay particular attention to the corners and back wall, which collect grime that becomes a food source. If there's any moisture, we flag it as a plumbing issue to the tenant—because even a slow drip creates conditions no amount of cleaning fully addresses long-term.
Cockroaches need water to survive, and the micro-condensation that forms at the base of a toilet during NYC's summer humidity is often enough. Cleaning this area thoroughly—including behind and underneath—removes both the moisture buildup and the organic matter that accumulates in it.
We see this in almost every NYC apartment: cardboard boxes, recycling bags, piles of paper near the front door or in closets. Cockroaches eat cardboard and lay egg cases inside corrugated cardboard. We always recommend switching to plastic bins for storage near food prep areas and keeping the recycling cycle short. If you're holding onto boxes "just in case," consider whether they're worth the pest risk.
In NYC, most apartments keep a separate bag for recyclables inside the kitchen. Any residual food or liquid in those containers—a beer can, a pasta sauce jar—is a magnet. We recommend rinsing recyclables before they go in the bag, and we clean under and around wherever that bag lives.
Pest activity in New York follows a fairly predictable arc: it picks up in late May, peaks in July and August, and starts declining in October. June is the window when conditions are changing fast—temperatures are rising, humidity is increasing, and pests that have been dormant or confined to lower building floors start moving. A pre-summer deep clean done in June removes attractants before that peak, making your apartment a less hospitable target during the worst months.
This is especially true in older buildings—pre-war co-ops, older rental stock, brownstones converted into apartments. These buildings have more entry points (gaps around old pipes, poorly sealed baseboards), and the pest pressure from shared walls and common spaces is higher. In a newer building with modern construction, you have more margin. In a pre-war building in Jackson Heights or a converted brownstone in Crown Heights, that margin is smaller.
A standard recurring clean maintains cleanliness. A pest-prevention deep clean goes further. Here's what's specifically included when a client books with pest prevention in mind:
We use non-toxic, plant-derived cleaning products throughout. Citrus-based degreasers are effective on kitchen grease and act as a natural deterrent—cockroaches dislike the scent of d-limonene (the active compound in citrus-based cleaners) and tend to avoid recently cleaned surfaces. You can find these and other professional-grade formulations in our non-toxic home care collection.
There's a temptation when dealing with pests to reach for the strongest available option. But in a small NYC apartment—especially one with children or pets—heavy pesticide use creates its own air quality concerns. The VOC load from commercial pesticide sprays in an enclosed space can persist for days.
Our approach: remove the conditions that attract pests first, then use cleaners that are effective without being toxic. The NYC Health Department's pest control guidance also emphasizes removing food and water sources before any pesticide is considered. If there is an active infestation, a licensed exterminator is the right call—but a clean that removes attractants supports that treatment and helps prevent recurrence.
The right time to book a pest-prevention deep clean in NYC is before the peak—ideally in June, before July's full heat arrives. If you're already seeing activity, a deep clean is still valuable; coordinate with your building's exterminator so the clean happens after treatment to remove the residue and egg cases that treatment exposes.
For new tenants, a professional home cleaning in NYC before move-in is the most effective time for a thorough pest-prevention pass. You have access to the whole apartment, there's no furniture in the way, and you're starting fresh before anything can accumulate.
We cover all five boroughs—Manhattan, Brooklyn, Queens, the Bronx, and Staten Island. If you'd like a quote for a deep clean or recurring service, get in touch here.
Cleaning doesn't exterminate cockroaches, but it removes the food, water, and harborage conditions that sustain them. NYC Health's integrated pest management framework emphasizes cleaning as the foundational first step before any treatment.
Citrus-based degreasers containing d-limonene are effective on kitchen surfaces and have a natural deterrent effect. The most important factor is thoroughness and coverage of hard-to-reach spots, not any single product.
One thorough pre-summer deep clean in late May or June, followed by regular maintenance (bi-weekly or monthly), is the standard recommendation. The deep clean addresses accumulation; recurring cleaning prevents new buildup.
Generally, yes. Older buildings have more gaps around pipes, settling cracks in baseboards, and shared infrastructure that provides more entry points. The benefit of regular deep cleaning is proportionally higher in these buildings.
Yes. Move-in is the ideal time for a full pest-prevention pass—full access, no furniture, and a clean slate before anything accumulates. See our home cleaning services page for details and pricing.
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