Quick Summary
- Spiders are most noticeable in fall, and many stay in your home throughout the cold months.
- Four venomous spiders live in our region: the brown recluse, black widow, false black widow, and yellow sac spider.
- Sealing entry points and reducing the insects spiders feed on are the two most effective prevention steps.
- Clutter, cardboard storage, and firewood piles give spiders the dark, undisturbed hiding places they prefer.
- Rid-A-Bug provides spider management throughout Wilkes County, Yadkin County, and the surrounding foothills, with same-day service or service within 24 hours.
Why Spiders Move Indoors During Winter
Spiders enter homes when outdoor conditions become too hot, cold, wet, or dry. In the foothills, cooler weather arrives earlier than it does in the Piedmont, which shortens the window between the first chilly nights and the first indoor sightings. By late fall, spiders that found a way inside are already settled into quiet corners of the house.
Spider activity climbs in fall for two reasons. Male spiders wander in search of mates, and the insects spiders eat tend to gather near warm structures. Many species slow down significantly in winter without truly hibernating, and they remain in undisturbed spaces such as attics and basements until warmer weather returns.
Local housing adds to the problem. Our region has many older farmhouses, cabins, and homes built over vented crawl spaces, and each of these offers more openings than newer slab construction. Wooded lots, stacked firewood, and outbuildings give spiders plenty of staging ground close to the house. For a broader look at seasonal prep, see our Fall Pest Control Checklist for NC Foothills Homeowners.
Venomous Spiders in the Carolinas and Virginia
Most spiders you find indoors are nuisance pests that look frightening but pose little risk. Only four venomous species live in our area, and knowing how to recognize them helps you decide when a sighting calls for action.
- Brown recluse: This is the most dangerous spider in our region. If you are bitten, seek medical attention right away.
- Black widow: Less venomous than the brown recluse, black widows can still cause significant harm. They favor dark, rarely disturbed spaces, including woodpiles.
- False black widow: This spider is venomous but far less dangerous than its namesake, and its markings differ slightly.
- Yellow sac spider: Its bite is considerably less harmful than a black widow or brown recluse bite, though it is still a spider you do not want in your home.
A few harmless house spiders can actually help by eating other bothersome insects. However, an unusually high number of spiders, or any sign of the four venomous species, is a good reason to take action.
How to Keep Spiders Out of Your Home This Winter
You may not be able to keep every spider outside, but you can make entry much harder and make your home far less inviting. The steps below work best when you combine them.
Seal Common Entry Points
Broken storm windows, worn weatherstripping, cracks in walls and foundations, and damaged vent enclosures all give spiders an easy path inside. Walk your home's exterior and check these areas in order:
1. Foundation walls and the mortar between bricks, looking for cracks and gaps.
2. The line where siding meets the foundation.
3. Gaps around pipes, wires, and utility lines entering the house.
4. Windows and doors, including weatherstripping, door sweeps, and storm windows.
5. Openings around dryer vents, exhaust fans, and air conditioning units.
6. Roof vents and crawl space vents, checking for torn or missing screens.
Steel wool combined with caulk works well for small gaps, while expanding foam suits larger openings. Replace worn door sweeps and weatherstripping before the coldest weeks of the year.
Reduce the Insects Spiders Feed On
Spiders follow their food. A home with a steady supply of flies, ants, cockroaches, and other small insects will attract and hold more spiders, so controlling those pests is a central part of spider prevention.
Store food in airtight containers, clean up crumbs and spills promptly, and keep garbage in cans with tight-fitting lids. Fix leaky faucets and pipes, since many of the insects spiders eat depend on moisture. When you remove the food source, spiders have far less reason to stay.
Clear Clutter From Storage Areas
Spiders prefer dark, cluttered spaces where they can remain unbothered. Garages, basements, attics, and closets full of boxes are ideal hiding spots, and spiders sometimes emerge from stored items once those items come back into living areas.
- Store seasonal items in sealed plastic containers instead of cardboard boxes.
- Keep storage areas organized with clear paths so you can inspect them.
- Vacuum corners, baseboards, and the spaces under and behind furniture.
- Check holiday decorations and stored boxes before bringing them indoors.
Manage Firewood and Landscaping
Firewood is one of the most common ways spiders reach the house in winter. Black widows in particular are drawn to woodpiles, so store firewood at least 20 feet from your home and keep it elevated off the ground. Only bring in wood you plan to burn right away, and inspect each piece before carrying it inside.
Trim bushes, shrubs, and tree branches so they do not touch your home's exterior. Remove leaf piles and yard debris near the foundation, since these create shelter for both spiders and their prey.
Control Moisture in Crawl Spaces and Basements
Damp crawl spaces and basements support the insects that spiders hunt. Dehumidifiers help in problem areas, and repairing leaks keeps moisture from building up in the first place.
For a long-term fix, crawl space encapsulation creates a dry environment that is not conducive to mold, mildew, or pests. It can also improve indoor air quality and energy efficiency.
When to Call a Professional for Spider Control
Even after sealing entry points all season, some homeowners still find spiders crossing the floor or tucked into corners. Professional help is the right step in any of these situations:
1. You see spiders frequently or in large numbers.
2. You find a spider you believe is a brown recluse or black widow.
3. You notice egg sacs or heavy webbing in basements, crawl spaces, or storage areas.
4. You are also seeing the insects spiders feed on, which points to a larger pest problem.
Controlling spiders effectively means addressing both the spiders and the bugs they eat. Rid-A-Bug uses Integrated Pest Management, an approach that combines inspection, exclusion, habitat changes, and targeted treatment to reduce reliance on chemicals. LEED certified treatments are available, and you can learn more about that approach in our article on Eco-Friendly Pest Control and LEED Certification.
Spider Management From Rid-A-Bug
Rid-A-Bug Exterminating has been family owned and operated since 1972 and is based in Wilkes County. Our staff of more than 45 pest management professionals serves homes and businesses across the foothills and piedmont of North Carolina, as well as parts of South Carolina and Virginia.
Here is what you can expect when you call us about spiders:
- Same-day service or service within 24 hours, with weekend and evening appointments available.
- Technicians who are state-registered for pest management and wood-destroying insects.
- A thorough inspection to identify the spider species, entry points, and the insects drawing them in.
- Warranties available for retreatment and damage repair.
- A 10% discount for military members and senior citizens.
You can read more about our spider management services and our broader pest and insect management program.
Frequently Asked Questions
Do spiders stay active during winter?
Yes. Spiders are most common in fall, but many remain in your home through the cold months. They tend to slow down and settle into quiet areas such as basements, attics, and crawl spaces, which is why they can surprise you on a winter afternoon.
Are the spiders in my house dangerous?
Most house spiders are harmless. The four venomous species in our region are the brown recluse, black widow, false black widow, and yellow sac spider. If you suspect a brown recluse or black widow, contact a professional, and seek medical attention if you are bitten by a brown recluse.
What is the most effective way to keep spiders out?
Sealing entry points and reducing the insects spiders eat are the two most effective steps. Clearing clutter, using plastic storage bins, and keeping firewood away from the house also make a noticeable difference.
Should I remove every spider I see?
Not necessarily. A few non-venomous spiders can help control other insects in your home. If you notice an unusually high number of spiders, or any sign of venomous species, it is time to call for an inspection.
How much does professional spider control cost?
Pricing depends on your property, the level of activity, and the treatment plan. Please contact Rid-A-Bug to discuss your situation and receive a quote.
Enjoy a Spider-Free Winter
A few hours of sealing, decluttering, and moisture control this fall can keep spiders out of your home for the entire winter. When spiders still find a way in, or when you spot one of the venomous four, a professional inspection gets to the source quickly.
Rid-A-Bug has protected homes across Wilkes County, Yadkin County, and the surrounding foothills for more than 50 years. To schedule an inspection, call 1-800-682-5901 or contact us online. We typically take care of pest problems in less than 24 hours, so you will not have to wait until spring for relief.