Straight answers from a licensed New York exterminator and Associate Certified Entomologist (ACE) — serving all five boroughs, in English and Spanish.
Get a Free Estimate →⏱ 5 min read
Quick answer: The spiders you see in New York City are almost all harmless. The common ones are cellar spiders (daddy long-legs), common house spiders, jumping spiders, wolf spiders, orb-weavers, and sac spiders. The two medically significant U.S. spiders people worry about — the brown recluse (Loxosceles reclusa) and the black widow (genus Latrodectus) — are not established in NYC; the recluse does not live here, and the northern black widow is rare and reclusive. Most NYC “spider problems” are actually a sign of other insects (spiders follow their food), which is the real thing worth addressing.
As an Associate Certified Entomologist, I get more nervous spider photos from New Yorkers than almost any other pest. The good news is reassuring and consistent: the vast majority of spiders in NYC apartments and yards are harmless, beneficial predators. Here is a field guide to what you are actually looking at, organized by where you tend to find them.
Basement and corner spiders
Cellar spider (daddy long-legs)
Thin, gangly legs and a small body, hanging in loose, messy webs in basement corners, ceilings, and closets. Completely harmless to people. The persistent myth that they are “the most venomous spider but their fangs are too small” is false on both counts. They actually help by eating other insects, including other spiders.
Common house spider
Small, brownish, builds tangled cobwebs in corners, window frames, and behind furniture. The classic web you sweep away. Harmless and shy.
Window, wall, and active hunters
Jumping spider
Small, compact, often fuzzy, with large front eyes — and they move in quick hops rather than building a web. People find them on windowsills and walls in daylight. Curious and harmless; their bite is medically insignificant and they almost never bite people.
Wolf spider
Larger, fast, ground-hunting, and often mistaken for something dangerous because of its size and speed. Wolf spiders do not build webs to catch prey; they chase it. They wander indoors occasionally, especially in cooler months. A bite is uncommon and comparable to a bee sting — alarming-looking, not dangerous.
Sac spider
Small, pale yellowish-green, builds a small silken “sac” retreat in wall-ceiling corners. One of the more likely NYC spiders to bite if trapped against skin, but the bite is minor for the vast majority of people.
Garden, yard, and outdoor spaces
Orb-weavers
The spiders that build the classic round, wheel-shaped webs in gardens, fire escapes, and between railings, often most visible in late summer and fall. They can be large and dramatic but are harmless and rarely come indoors. They are pure benefit — they eat mosquitoes and flies.
The two everyone asks about
Brown recluse
Not established in New York City. The brown recluse’s range is the central and southern U.S.; verified specimens in NYC are essentially always misidentifications of harmless local spiders. If someone tells you they found a recluse in their NYC apartment, it is almost certainly something else.
Black widow
The northern black widow can occur in the broader region but is rare in the city, reclusive, and found in undisturbed outdoor spots like woodpiles and sheds rather than apartments. Encounters in everyday NYC living spaces are very unlikely. Its bite is medically significant, so it deserves respect — but not the panic the name triggers.
Why you are seeing spiders — and what it really means
Spiders are predators, so a noticeable spider population is usually a signal that there is plenty of prey — flies, gnats, moths, or other insects — in or around your space. In that sense, spiders are an indicator: clearing up the underlying insect activity and sealing entry points reduces spiders far more effectively than chasing the spiders themselves. Reducing webs, sealing gaps around windows and doors, and managing exterior lighting (which draws the insects spiders eat) all help.
When to call a professional
Most NYC spider sightings need no intervention beyond a vacuum. Consider a professional if you have persistent webbing throughout a space, a recurring population that suggests a strong insect food source, or genuine concern about identification. New York Exterminating can identify a spider from a clear photo and address both the spiders and the insects drawing them; see our spider control service. Because spiders follow their food, we often pair it with general pest-proofing and exclusion.
A Brooklyn-based, NYSDEC-registered company (Reg. #15140) led by Jorge Bedoya, an Associate Certified Entomologist (ACE). For spiders, NYE provides targeted spider control and the prey pests that attract them. ACE-led work comes with a client portal of service reports and photos, fully bilingual service, and no long-term contract.
NYC Spiders FAQ
Are there dangerous spiders in NYC?
Very few. The brown recluse is not established in New York City, and the northern black widow is rare and reclusive. The spiders New Yorkers actually encounter — cellar spiders, house spiders, jumping spiders, wolf spiders, orb-weavers — are harmless to medically insignificant.
Is a daddy long-legs poisonous?
No. The cellar spider (daddy long-legs) is harmless to people, and the popular claim that it is extremely venomous but cannot bite is a myth. It is actually a beneficial predator of other insects.
Why do I suddenly have a lot of spiders?
Usually because there is a good supply of insects to eat. A spider increase often points to flies, gnats, or moths in or near your space, plus easy entry points. Address the insect source and seal gaps and the spiders typically decline.
Can you identify a spider from a photo?
Often, yes. A clear, in-focus photo with something for scale is usually enough for an entomologist to identify a common NYC spider and tell you whether it is harmless.
Do I need an exterminator for spiders?
Usually not for the occasional spider. It is worth a call when webbing is persistent and widespread, the population keeps returning (a sign of an insect food source), or you want a positive identification for peace of mind.
Found a spider you cannot identify? An Associate Certified Entomologist can tell you what it is and whether it matters. New York Exterminating serves all five boroughs, no contracts. Call (347) 210-4646 or see our spider control service.
Reviewed by Jorge Bedoya, Associate Certified Entomologist (ACE), New York Exterminating. For any spider bite with severe or spreading symptoms, seek medical care.
