Keeping spiders out of your house comes down to cutting off what draws them there in the first place. Turn off or switch out outdoor lights that attract insects, move firewood and mulch away from your foundation, and seal gaps around doors, windows, and the garage. Removing their food supply and closing their entry points, backed by regular perimeter pest control, is what keeps spiders from settling in as the weather cools.
Keeping spiders out of your house gets easier once you know why they show up in September. Cooler nights push them toward warm walls, and the insects they eat are already heading indoors. If you've noticed a fresh web across the porch light every morning, that's usually the first sign fall spider season has started in your yard.
Why Spiders Move In When the Weather Cools
Spiders don't come inside because they suddenly like your house better. They come inside because their food does. As nighttime temperatures drop across Metro Atlanta, moths, beetles, and other insects gather around porch lights and window wells looking for warmth. Spiders follow the food, spinning webs wherever the bugs are thickest, which is often right at your entry points.
At the same time, spiders themselves are looking for a warmer spot to spend the colder months. Gaps around doors, vents, and foundation cracks give them an easy way in. Once they're inside, they'll often settle into quiet, undisturbed spots like basements, garages, and closets.
Are the Spiders in Georgia Homes Dangerous?
Most of what you'll find around a Georgia home is harmless. Common house spiders and garden spiders help control other insects and generally keep to themselves. The two to know in Georgia are the brown recluse and the black widow. Both prefer dark, undisturbed areas like woodpiles, garages, and storage boxes, and both are best left alone rather than handled directly.
Also, never squish a spider. Crushing one, especially a female carrying an egg sac, can scatter eggs or trigger a defensive bite. It's safer to sweep it into a container and release it outside, or leave it to pest control if you're not sure what you're looking at.
Common Mistakes That Let Spiders Back In
A few habits make fall spider problems worse without homeowners realizing it:
- Bright white porch lights. These attract far more insects than warm-toned or yellow bulbs, which means more prey, and more spiders, gathering at your door.
- Firewood and mulch piled against the house. Both make ideal hiding spots, and they put spiders one step from your foundation.
- Assuming one spray fixes it. A single indoor treatment doesn't address why spiders are showing up. If the food source and entry points stay the same, new spiders move in behind the ones you removed.
What Stops Spiders From Coming In the House
Once you understand what's drawing spiders toward your home, prevention is mostly about closing the gaps.
- Switch your outdoor lighting. Swap white bulbs for warm LED or yellow “bug light” bulbs near doors and garages. Less insect activity at your lights means less reason for spiders to build webs there.
- Keep firewood and mulch off the foundation. Store woodpiles at least 20 feet from the house, and pull mulch back a few inches from your siding. This removes a favorite hiding spot for both spiders and the insects they eat.
- Seal doors, windows, and garage gaps. Door sweeps, weatherstripping, and repaired screens close off the easiest routes inside. Pay extra attention to the garage door, since it's one of the most common entry points homeowners overlook. Garages also have more clutter and less foot traffic, which spiders like.
- Address the basement separately. Basements stay cool, dark, and quiet, which is exactly what spiders look for once the weather turns. Check window wells, utility penetrations, and foundation vents to keep spiders out of your basement.
- Reduce the insects spiders feed on. This is where perimeter pest control makes the biggest difference. Exterior pest control treats spiders and the insects gathering around your home's perimeter, so spiders have less reason to move in behind them. You can read more about what perimeter pest control does and why it works better than one-time indoor sprays.
Backyard Care Company runs mosquito control and lawn fertilization for homes across Atlanta and Charlotte, plus pest control in Metro Atlanta, using low-toxicity materials chosen with pets, kids, and pollinators in mind.
The Long-Term Approach to Keeping Spiders Out of Your House
No single treatment keeps a home spider-free forever, since new insects and new spiders move through every season. What works is consistency. Seal entry points once, then keep the exterior treated so the insects spiders feed on don't build up again.
That's the idea behind Backyard Care's home pest control program. Instead of a single indoor spray, ongoing exterior treatment keeps the perimeter of your home less attractive to insects in the first place, which reduces the number of spiders showing up at your door, garage, or basement window.
Backyard Care Company has completed more than 10,000 services across Metro Atlanta and Greater Charlotte, and is locally owned and operated, with a focus on outdoor spaces homeowners actually want to spend time in.
What Do Spiders Dislike Most?
Spiders avoid disturbance, dryness, and busy areas. Regularly sweeping webs, decluttering garages and basements, keeping outdoor lighting dim near entry points, and reducing the insect activity they feed on all make a home less appealing to them. None of this requires harsh chemicals indoors, which fits homeowners who want results without heavy pesticide use.
Getting Ahead of Fall Spider Season
Fall spider activity in Georgia isn't something to panic about. It's a predictable, seasonal shift you can prepare for. A few changes to outdoor lighting, some distance between your firewood pile and your siding, and sealed entry points handle most of it. For the rest, ongoing perimeter treatment keeps the insects, and the spiders that follow them, from building back up around your home.
If you're ready for a plan built around your yard, you can get a free pest control quote or check whether Backyard Care serves your area. Our team is also happy to answer questions about what's showing up around your home this fall.
FAQ
What stops spiders from coming in the house?
Sealing gaps around doors, windows, and the garage, combined with reducing outdoor lighting that attracts insects, addresses both how spiders get in and why they're drawn there.
What do spiders dislike the most?
Busy, frequently disturbed areas with little insect activity. Decluttering, regular cleaning, and warm-toned outdoor lighting all make a home less inviting.
How do I permanently get rid of spiders in my house?
No single treatment keeps spiders away forever, but combining sealed entry points with ongoing exterior pest control keeps their food source, and their numbers, consistently low.
Why should you never squish a spider?
It can scatter eggs from a female carrying an egg sac or trigger a defensive bite. Sweeping the spider into a container and releasing it outside is the safer option.
Are the spiders in Georgia homes dangerous?
Most aren't. The brown recluse and black widow are the two worth being cautious around, and both tend to hide in undisturbed spots like woodpiles and garages rather than out in the open.