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3 Things You Didn’t Know About Household Spiders

Written by Aptive Pest Control
Updated: May 21, 2026 Published: July 30, 2024

Most of us have had an unexpected encounter with a spider at home. Household spiders can evoke a mix of fear and fascination. While many people think spiders are just creepy crawlies to be squashed, there's much more to these eight-legged creatures than meets the eye. Today, we're debunking spider myths and revealing some surprising facts about these houseguests.

1. Household Spiders Are Expert Pest Controllers

Keeping Other Pests Under Control

Did you know that some household spiders play a role in pest control? These arachnids are nature's exterminators, feeding on a variety of insects such as flies, mosquitoes, and even other spiders. By doing so, they help keep the population of these pests under control, reducing the need for chemical pest control methods.

Specific Spider Diets

Different spider species have specific diets, which means they target different pests. For instance, the common house spider (Parasteatoda tepidariorum) primarily feeds on flies and ants. Meanwhile, the cellar spider (Pholcus phalangioides) is known for catching and consuming other spiders, including potentially harmful ones. This natural predation makes them beneficial inhabitants in homes, particularly in basements and attics where other pests tend to accumulate.

2. Most Household Spiders Are Harmless to Humans

Debunking Spider Myths

One of the most prevalent spider myths is that all spiders are dangerous. In reality, the majority of household spiders are harmless to humans. Spiders like the common house spider and the daddy longlegs have venom that is either too weak to affect humans or fangs too short to penetrate our skin.

Understanding Spider Venom

Spiders use venom to subdue their prey, but this venom is usually not potent enough to harm humans. The infamous black widow and brown recluse spiders are exceptions, but they are relatively rare and typically avoid human contact. Understanding this helps reduce unnecessary fear and allows us to appreciate the role of spiders in our homes.

3. Spiders Can Be a Sign of an Infestation

Indicators of Other Pest Problems

If you see many spiders around your home, it might suggest an underlying issue with other pests. Addressing these primary pests can help manage spider populations indirectly. For example, a high number of flies or ants might attract more spiders to your home. By targeting and reducing these primary pests, you can create an environment less inviting to spiders.

Signs You Need Pest Control

While some spiders can be beneficial, there are clear signs that professional pest control might be necessary:

  • Multiple spider webs: An abundance of spider webs, especially in frequently cleaned areas, can indicate a larger pest problem.
  • Frequent spider sightings: Seeing spiders regularly, particularly during the daytime, might suggest that your home has an underlying insect infestation.
  • Bites and skin reactions: Although rare, spider bites can happen. If you or your family members experience unexplained bites, it might be time to call in the professionals.
  • Persistent pests: If you continue to see other pests, such as ants, flies, or roaches, despite the presence of spiders, professional pest control can address these issues at the source.

By recognizing these signs, you can take proactive steps to maintain a healthy home environment without the pests.

A New Perspective on Household Spiders

Instead of viewing household spiders as nuisances, consider their role as natural pest controllers. By understanding and appreciating these arachnids, you can manage your home environment more effectively.

However, while spiders may have some definite benefits, not everyone will appreciate their presence in the home. If you need help from professional pests control in removing spiders or other pests from your home, reach out to Aptive, we’d love to talk to you and help out.

Learn more about spiders

5 Surprising Spider Superpowers Are All Spiders Venomous? Are Daddy Long Legs Spiders? Black Widow vs Brown Widow: What Are the Differences? Black Widows vs Brown Recluse: What Are the Differences? Black Widows vs Hobo Spiders: What Are the Differences? Brown Recluse Spider: Facts, Bites & Control Common Spiders Found in St. Louis Do All Spiders Make Webs? Do Brown Recluse Spiders Build Webs? Signs of a Potential Infestation Good vs Bad Spiders Ground vs Web Spiders in Basements How Black Widows Choose Nesting Spots How Do Jumping Spiders See in Color How Do Spiders End Up Inside Light Fixtures and Lampshades How Do Spiders Stick to Walls? How to Get Rid of Brown Recluse Spiders: Identification & Control How to Get Rid of Spiders in the House How to Get Rid of Wolf Spiders How to Identify a Spider: 5 Signs to Consider and When to Take Action How to Identify and Deal with a Brown Recluse Spider Infestation Identifying Spider Webs Around Your House Indoor Spider Control: What Attracts Spiders to Indoor Corners and How to Prevent Them Joro Spiders vs Golden Silk Orb Weaver Spiders: How Are They Different? Jumping Spider Control: Effective Methods to Eliminate and Prevent Mosquito Bite or Spider Bite? Most Common Types of Spiders in Gardens Orb Weaver Spider Control: Facts, Control & Tips Protecting Against Spiders: The Where and When of Spider Activity Spider Egg Sacs: What to Do When You Find One Spider Infestation: Signs, Causes & How to Get Rid of Spiders in Your Home Spider Repellent and Deterrent: How to Keep Spiders Out of Your Home Spiders that Look like Brown Recluses Spiders That Look Like Brown Recluses But Aren't The Difference Between Spider Egg Sacs and Dust Clumps The Difference Between Web-Building and Hunting Spiders The Engineering Logic Behind Spider Web Geometry The Peak of Spiders Indoors: 4 Tips to Manage Spider Activities The Role of House Spiders in Your Home Ecosystem The Role of Yellow Garden Spiders in Pest Control: Friend or Foe? The Science Behind Spider Silk’s Flexibility The Ultimate Guide to Wolf Spiders: Identification, Prevention, and Elimination Three of the Most Dangerous Spiders Tiny Jumping Spiders in My Houseplants: Are They Harmful? Top Spiders That Are Often Mistaken for Black Widows What Are Candy Stripe Spiders and Where Are They Found? What Are Funnel Weaver Spiders? Identification, Risks & How to Get Rid of Them What are Joro Spiders and how to Identify them What Are the Signs of a Black Widow Infestation? What Are the Top 10 Most Common Spiders Found in Basements? What Attracts Spiders to Your Home and How to Minimize These Factors What Is a False Widow? What to know About Hobo Spider Bites Why Attics Provide the Perfect Microclimate for Spiders Why Do Hobo Spiders Build Funnel Webs in Basements and Crawl Spaces? Why Lights Outside Can Bring Spiders In Why Some Spiders “Balloon” Through the Air on Threads of Silk Why Spiders Like the Basement Why Spiders Rebuild Their Webs Every Night Yellow Garden Spider vs Joro Spider: What Are the Differences? Your Comprehensive Guide to Jumping Spiders

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