In Upstate New York, homeowners often notice more spiders in late summer and fall as temperatures begin to cool. During this time, spiders become more active while searching for food and mates, and many wander indoors through small gaps around doors, windows, and foundations.

It's also important to remember that spiders follow their food. If you're seeing spiders, there may also be ants, flies, stink bugs, or other insects attracting them.

Fortunately, most spiders found throughout the Capital Region, Hudson Valley, Adirondacks, and surrounding areas are harmless.

Common spiders we encounter include:

• House spiders
• Wolf spiders
• Cellar spiders
• Jumping spiders
• Orb weavers

While black widow spiders have occasionally been found in isolated areas of New York, they are uncommon. Brown recluse spiders are not established in New York and are rarely encountered. If you suspect you've found a medically significant spider, avoid handling it and contact a licensed pest management professional.

A clean home doesn't necessarily mean you won't have spiders.

Spiders enter homes looking for shelter, warmth, and food, not because a home is dirty. Even well-maintained homes can have occasional insect activity, and spiders will follow those food sources indoors.

Sometimes.

Because spiders feed on insects, frequent spider activity can indicate there are other pests living in or around your home.

Common food sources include:

• Ants
• Flies
• Gnats
• Stink bugs
• Beetles
• Pantry pests

Reducing insect activity is often the most effective long-term spider control strategy.

Removing a web doesn't remove the spider.

If spiders continue finding food inside your home, they'll often rebuild their webs in the same areas. Recurring webs usually indicate:

• Available insect prey
• Easy entry points
• Favorable hiding places
• Egg sacs that have already hatched

Spiders thrive in cool, dark, undisturbed spaces.

Basements, garages, crawl spaces, attics, and storage rooms often provide:

• Moisture
• Darkness
• Clutter
• Limited human activity
• Plenty of insects

These conditions create ideal spider habitat.

Heavy rain can flood outdoor hiding places and drive both spiders and the insects they feed on closer to your home.

During wet weather, it's common to notice increased spider activity around:

• Foundations
• Garages
• Basements
• Window wells
• Entry doors

DIY products may reduce visible spiders temporarily but rarely solve the underlying problem.

Spider control is most successful when you:

• Reduce insect populations
• Seal entry points
• Remove webs and egg sacs
• Address moisture issues
• Treat areas where spiders hide

Professional treatments often provide longer-lasting results because they focus on both spiders and the insects attracting them.

Several conditions can attract spiders, including:

• Outdoor lighting that attracts insects
• Moisture around the home
• Cracks and gaps around doors and windows
• Dense landscaping touching the home
• Cluttered storage areas
• Existing insect activity

Spider activity changes throughout the year.

Spring

• Young spiders emerge.

Summer

• Populations increase as food becomes abundant.

Late Summer & Fall

• Homeowners notice spiders most often as they search for mates and shelter.

Winter

• Many spiders remain hidden indoors in protected areas.

Unlike termites or carpenter ants, spiders do not damage wood or structures.

However, excessive spider webs, egg sacs, and recurring activity may indicate conditions that are attracting insects into your home. Addressing those conditions can help reduce spider populations.

Many spiders look similar, making identification difficult without a close inspection.

If you're unsure what species you've found:

• Take a clear photo from a safe distance.
• Avoid handling the spider.
• Contact a pest management professional for identification if you're concerned.

Most spiders are beneficial because they feed on insects.

If you occasionally find a spider indoors, relocating it outside may be appropriate. However, recurring spider activity, multiple webs, or frequent sightings may indicate a larger insect issue that should be addressed.

Preventing spiders starts with making your home less attractive.

Helpful prevention tips include:

• Seal cracks and gaps around doors, windows, and utility lines.
• Repair damaged screens and weatherstripping.
• Trim shrubs and tree branches away from the home.
• Reduce outdoor lighting near entrances when possible.
• Vacuum webs, egg sacs, and corners regularly.
• Store firewood away from the foundation.
• Reduce clutter in garages, basements, and crawl spaces.
• Control insects that spiders feed on.

Consider scheduling a professional inspection if:

• Spider webs continue returning.
• You're seeing spiders in multiple rooms.
• Large wolf spiders are appearing frequently.
• You find multiple egg sacs.
• You're unsure whether a spider is dangerous.
• Spider activity suddenly increases.
• DIY efforts haven't solved the problem.

Professional spider control goes beyond simply spraying spiders.

A comprehensive service typically includes:

• Identifying the spider species
• Inspecting areas where spiders live and hide
• Evaluating entry points
• Recommending exclusion improvements
• Treating key harborage areas
• Reducing insect populations that attract spiders
• Providing prevention recommendations to help keep spiders from returning

By combining inspection, exclusion, and targeted treatments, professional pest control offers a more effective long-term solution than DIY products alone.