7 Common Mistakes That Are Drawing Spiders Into Your Home

Few things are more unpleasant than unwanted visitors, especially when they're spiders. These unsettling creatures can show up unexpectedly, causing discomfort and surprise. However, spiders don’t simply appear out of thin air. There are numerous reasons you might be dealing with an invasion. Here are seven common errors that could be inviting spiders into your house.

Leaving Outdoor Lights On

Outdoor lights are important for security, but they can also cause issues, says Matt Rogers, CEO and co-founder of pest control company Pestie. “If you’ve ever left your outdoor lights on in the summer and then tried to open the door, you know all too well about the swarm of flying insects that can drive you mad,” he says. “What’s bothersome to us is essentially a feast for spiders. They can settle under a light and never lack for food, as long as you keep the lights shining.”

To reduce the allure for spiders, try using lights that are motion-sensored or on timers. Alternatively, you can opt for smart lighting that connects to your security system.

Allowing Bathrooms to Get Too Humid

You might think you’re the only one in the bathroom when taking a hot shower, but that steam is essentially sending an invite to spiders to join in. “Though spiders don’t seek water to drink, they seem to be drawn to damp and humid spaces,” Rogers explains. “Not only do they stay hydrated in these areas, but they’re also likely to encounter their next meal here.”

He suggests keeping your bathrooms well-ventilated. Open windows, or use an exhaust fan. If neither option is available, at least leave the door open.

Having Too Many Houseplants

While having a lot of houseplants can be lovely, Rogers points out that this can lead to problems, as plants create the perfect environment for spiders. “Indoors, spiders are less likely to face predators they would encounter outside, which makes indoor spaces—and indoor plants—ideal for long-term habitation,” he explains. “Instead of worrying about being eaten, they can focus on finding their next meal. Plus, they can create egg sacs in a safe, predator-free zone where their spiderlings can grow up undisturbed.”

Leaving Yard Debris Behind

Yard debris can also serve as a tempting invitation to spiders, says Emma Grace Crumbley, entomologist at mosquito control company Mosquito Squad. “Spiders that build webs prefer quiet, sheltered spaces,” she notes. “If you leave your yard cluttered with debris, toys, leaves, or other objects, you’re essentially providing future homes for spiders.”

Eric Clapper, owner of Tri-X Pest Management, identifies wood piles as one of the main offenders in this situation. “Wood piles contain many nooks and crannies that are perfect homes for both web-building spiders and hunting spiders,” he says. “If these piles are kept too close to the house, the risk of spiders finding their way indoors is much higher.”

Allowing Standing Water and Moisture to Accumulate on Your Property

Crumbley explains that standing water and excess moisture are major attractants for flies, mosquitoes, ants, and various other pests. “And what do these pests attract? Spiders,” she says. “By reducing the conditions around your home that draw in other insects, you’ll ultimately reduce the number of spiders as well.”

Skipping Regular Cleanups

Establishing a regular cleaning routine is crucial for preventing spiders. “It’s always a good idea to inspect your home and yard frequently for potential issues,” advises Clapper. “Areas like under eaves, around pillars, corners, and items stored close to the house—like furniture and grills—need to be kept clean and well-maintained to prevent spider food sources, hiding spots, and breeding grounds.”

Neglecting a Regular Pest Control Program

Along with regular cleaning, preventive pest control is equally important. “Professional pest control services typically follow a three-step approach to tackle spiders,” Clapper says. “The first step is a thorough inspection to pinpoint problem areas and conditions that encourage spider activity. Then, any existing webs are cleaned up. Finally, a pesticide treatment is applied to eliminate food sources and any spiders present. It’s crucial not to wait until there’s a spider infestation before scheduling these services.”