Spiders are nature's pest controllers, but that doesn't mean you want them setting up webs in your corners, skittering across your floors, or surprising you in the shower. If you're tired of sharing your living space with eight-legged roommates, you're not alone. The good news is that keeping spiders out of your house doesn't require harsh chemicals or constant vigilance—just a smart, layered approach that makes your home far less appealing to them. Here's everything you need to know to reclaim your space.
How to Keep Spiders Out of Your House by Eliminating Their Food Source
Spiders don't wander into your home for shelter alone—they follow their prey. If you have flies, mosquitoes, moths, or other small insects buzzing around, spiders will treat your home like an all-you-can-eat buffet. The single most effective long-term strategy for spider control is cutting off this food supply.
Start by addressing the basics: keep kitchen counters clean, store food in sealed containers, and take out garbage regularly. Fix leaky faucets and pipes—standing water attracts thirsty insects, which in turn attract spiders. Consider switching outdoor lighting to yellow "bug lights" that are less attractive to flying insects, and keep those lights away from doorways when possible. If you have a persistent insect problem, targeted treatments for those pests will naturally reduce your spider population without you having to chase every arachnid individually.
Seal Every Entry Point Spiders Could Exploit
Spiders are master contortionists that can squeeze through gaps you'd barely notice. A thorough inspection and sealing of your home's exterior is essential if you want to keep them outside where they belong.
Walk around your home and examine windows, doors, vents, utility penetrations, and the foundation. Replace worn weatherstripping, install door sweeps, and caulk cracks and crevices—pay special attention to areas where different building materials meet. Don't forget chimney openings, attic vents, and crawl space access points; cover these with fine mesh screens. Even tiny gaps around cable or pipe entry points can serve as spider highways. This work takes effort upfront, but it pays dividends by blocking not just spiders but many other pests simultaneously.
Modify Your Landscaping and Outdoor Spaces
Your yard and garden directly influence spider pressure indoors. Spiders thrive in cluttered, overgrown environments, so a little yard maintenance goes a long way toward protecting your interior.
Keep shrubs, tree branches, and dense vegetation trimmed back at least a foot from your home's exterior walls and roofline—these serve as bridges for spiders to access your structure. Move firewood, compost bins, and rock piles away from the foundation. Reduce excess moisture by ensuring proper drainage and fixing sprinkler leaks. Consider replacing dense ground covers near your foundation with gravel or mulch, which spiders find less hospitable. Outdoor lights should be positioned to illuminate your yard without drawing insects directly to your walls and windows.
Key Tips for a Spider-Resistant Home
Beyond the big strategies, several smaller habits and tactics significantly bolster your defenses against spiders.
Declutter regularly. Spiders love undisturbed hiding spots—cardboard boxes, piles of newspapers, crowded closets, and storage areas with little human activity. Switch to plastic storage bins with tight lids, and periodically disturb and clean these spaces.
Vacuum strategically. A vacuum with a hose attachment is your best immediate weapon. Suck up webs, egg sacs, and spiders themselves from corners, behind furniture, in window tracks, and along baseboards. Empty the canister or bag outdoors immediately afterward.
Use essential oils cautiously. Peppermint, tea tree, eucalyptus, and vinegar solutions are popular natural deterrents. While evidence of their effectiveness is mixed, many homeowners report success spraying diluted oils around entry points and baseboards. These won't kill spiders but may make treated areas less appealing. Reapply frequently, as scents fade quickly.
Manage humidity. Spiders prefer damp environments. Run dehumidifiers in basements and crawl spaces, ensure bathrooms have exhaust fans, and fix any moisture issues promptly. A drier home is less attractive to both spiders and their prey.
Don't rely on conkers or ultrasonic devices. Despite persistent myths, horse chestnuts ("conkers") have no proven spider-repelling properties. Similarly, ultrasonic pest repellers show little scientific support for effectiveness against spiders. Save your money for proven methods.
When to Call a Professional
If you're seeing numerous spiders despite your best efforts, or if you're dealing with potentially dangerous species in your region, professional pest control brings expertise and targeted treatments that DIY methods can't match. A technician can identify species, locate hidden harborage areas, and apply appropriate perimeter treatments that create a lasting barrier. This is particularly valuable if you're managing a property with crawl spaces, extensive landscaping, or ongoing moisture challenges that make spider control especially difficult.
Final Thoughts
Learning how to keep spiders out of your house comes down to understanding what attracts them and systematically removing those incentives. No single tactic is foolproof, but combining food source elimination, physical exclusion, yard management, and smart interior habits creates a powerful, layered defense. You don't need to wage war on every spider in nature—just make your particular home an unappealing destination. With consistent effort, you'll dramatically reduce encounters and enjoy a more comfortable, spider-free living space. Start with one or two strategies this week, build from there, and soon you'll notice the difference.