As the weather cools down in Southern Utah, especially here in St. George, spiders start heading indoors—looking for warmth, shelter, and an easy food source. If you’ve lived here long, you’ve probably spotted one of those eight-legged squatters hanging out in your garage, basement, or tucked into a corner of the shed. Fall is when spider activity ramps up, and if you’re not careful, they’ll move in before you know it.
Common Spiders in St. George
Southern Utah is home to a variety of spiders, some harmless and others not so friendly. Knowing which ones to watch out for can help you better protect your home and family.
- Black Widows – The most infamous spider around here. Recognizable by their shiny black body and red hourglass marking, black widows are venomous and love to nest in dark, undisturbed areas like woodpiles, storage boxes, and garages. A bite from one of these gals can be serious—especially for kids, pets, and older adults.
- Wolf Spiders – Big, hairy, and fast-moving, these spiders might look terrifying, but they’re not dangerous. They don’t build webs and are often seen scurrying across the floor or driveway hunting for prey.
- Hobo Spiders – Often confused with brown recluses (which are rare in Utah), hobo spiders are brown, funnel-web builders that tend to stay low to the ground. Their bites are debated, but most experts now agree they’re not medically significant. Still, they’re not something you want crawling around the house.
- Cellar Spiders & House Spiders – These are the skinny-legged, long-bodied types that hang out in ceiling corners. They’re harmless but unsightly and multiply fast.

Why Fall Spider Control Matters
Fall in St. George is beautiful—cooler temps, red rock hikes, and cozy evenings. But for spiders? It’s prime time to move in.
Spiders don’t hibernate like bears. When the nights start to dip into the 40s and 50s, they seek out places with steady temperatures, water access, and food (like other insects). Your home checks every box.
If you’re seeing webs in the corners, spiders running across the floor, or even egg sacs in the garage, now’s the time to act. Ignoring a few spiders today can lead to dozens more in just a few weeks. Plus, spider populations around your home often signal a bigger issue—like insect infestations they’re feeding on.
Where Spiders Like to Hide
Here in Southern Utah, we’ve treated hundreds of homes in St. George, and we see the same patterns year after year. Here’s where spiders like to hang out:
- Under eaves and patio furniture
- Inside garages, tool sheds, and basements
- Around window sills and door frames
- Inside cluttered closets or storage bins
- Beneath rocks, firewood, or landscaping timbers
Spiders are smart. They go where they’re least likely to be disturbed. That’s why prevention and control should start from the outside and work inward.
Tips to Keep Spiders Out This Fall
You don’t need to wait for a full-blown invasion to take action. Here are a few tips to reduce spider activity:
- Seal up cracks and gaps – Check around windows, doors, vents, and your foundation for entry points. Even a tiny gap is big enough for a spider.
- Reduce clutter – Both inside and outside. Spiders love hiding in cardboard boxes, stacked firewood, and forgotten corners.
- Keep lights off – Outdoor lights attract insects, and insects attract spiders. Use motion lights or yellow bug bulbs when possible.
- Vacuum regularly – Especially around corners, ceiling edges, and under furniture.
- Eliminate other pests – Flies, ants, and beetles are spider food. If you cut down their food source, spiders will move on.

Why Choose Newby’s for Spider Control?
You’ve got options in St. George, but here’s what sets us apart:
- We’re local. We know the pests because we live with them too.
- We’re experienced. Our team has years of hands-on experience in Southern Utah homes.
- We’re honest and professional. No scare tactics. No upcharges. Just solid, dependable service.
- We’re thorough. We don’t just spray and walk away. We inspect, treat, and follow up to make sure spiders don’t come back.
And we’re not some big national chain. We’re your neighbors. When you call Newby’s, you’re supporting a Southern Utah business that gives back—like providing free pest control to local food banks and doing our part to keep the community healthy.
Final Thoughts: Don’t Let Spiders Settle In
The best time to handle spiders is before they hatch a new batch of creepy crawlers. Whether you’re dealing with a few webs or seeing more activity than usual, fall is the season to get serious.
At Newby’s Pest Control, we’ve helped hundreds of families in St. George and surrounding areas keep their homes spider-free and safe. We’d be happy to do the same for you.
Click here to learn more about our spider control service or schedule a visit today. We’ll treat your home like it’s our own—and keep those unwanted visitors where they belong: outside.


