How to Keep Spiders Out of Basement Without Harmful Chemicals

How to Keep Spiders Out of Basement?

To keep spiders out of the basement, start by sealing up any cracks or holes on the exterior of the home and consulting with a professional before closing off any spaces in the basement.

Fix gaps in doors and windows with sealant or adhesive strips, and use door sweeps to keep spiders from entering.

Use sticky or glue traps to catch and stop hunting spiders.

Additionally, certain plants, chemicals, and smells like citrus aromas and essential oils can repel spiders.

Regularly clean up spills, wipe crumbs, secure pantry items, and take out the trash to reduce the presence of pesky pests that may attract spiders.

Key Points:

  • Sealing cracks and holes on the exterior and consulting with a professional before closing off basement spaces.
  • Fixing gaps in doors and windows with sealant or adhesive strips, and using door sweeps.
  • Using sticky or glue traps to catch and stop hunting spiders.
  • Repelling spiders with certain plants, chemicals, citrus aromas, and essential oils.
  • Regularly cleaning up spills, wiping crumbs, securing pantry items, and taking out the trash.
  • Taking measures to reduce the presence of pests that may attract spiders.

Did You Know?

1. Many spiders are actually repelled by the scent of peppermint oil. So, consider placing a few drops of peppermint oil on a cotton ball and strategically placing them around your basement to deter spiders from entering.

2. Did you know that spiders hate citrus? Rubbing citrus peels, such as lemon or orange, along windowsills and door frames can serve as a natural deterrent for spiders, making them less likely to enter your basement.

3. Seal any cracks and crevices in your basement walls and flooring to keep spiders from sneaking in. Even the tiniest openings can provide an entry point for these arachnids.

4. Combat spider webs naturally by introducing certain plants to your basement. Spiders often avoid areas with strong scents, so consider bringing in plants with pungent odors, like eucalyptus or lavender, which can discourage spiders from building their webs.

5. Contrary to popular belief, most spiders prefer clean spaces, as clutter can limit their movement and restrict their web-building capabilities. Thus, maintaining a clean and organized basement can help prevent spider infestations or encourage them to move elsewhere.

Spiders’ Entry Points: Holes, Cracks, And Gaps

Basements and garages are notorious for being dark and secluded areas, making them perfect hideouts for spiders. These eight-legged creatures are known to enter homes through various entry points, such as holes, cracks, and gaps on the exterior.

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If you want to keep your basement spider-free, it is crucial to identify and address these entry points.

One common entry point for spiders is open holes or cracks on the exterior of the home. Spiders have the remarkable ability to squeeze through tiny gaps, so even the tiniest hole can be an invitation for them to enter.

The most effective way to prevent spider infestations is to regularly inspect the exterior of your home for any cracks or openings. Once identified, make sure to repair them promptly to avoid any unwanted visitors.

Additionally, gaps under windows and doors can also provide easy access for spiders. These small openings may seem insignificant, but spiders can effortlessly make their way inside through them. To prevent this, consider installing adhesive strips, door sweeps, or sealant to close off these gaps and ensure that no spiders find their way into your basement.

Effective Traps For Catching Spiders

Sometimes, despite taking preventative measures, spiders can still find their way into our basements. In such cases, using traps can be an effective method to catch and eliminate them. Sticky traps, which can often be found in hardware or home improvement stores, can be strategically placed in areas where spiders are commonly spotted. These traps are coated with a sticky substance that immobilizes spiders when they come into contact with it.

When dealing with hunting spiders like wolf spiders or tarantulas, glue traps are highly effective. These traps consist of a board or cardboard covered with a sticky adhesive that traps spiders when they walk over it. Unlike sticky traps, glue traps are more robust and can effectively immobilize larger spiders.

Remember to place traps in areas where spider activity is highest, such as corners, behind furniture, or near potential entry points. Regularly check and replace the traps as needed to ensure maximum effectiveness.

Repairing Cracks: A Key To Keep Spiders Out

To truly keep spiders out of your basement, it is essential to inspect and repair any cracks on the exterior of your home. As mentioned earlier, spiders can enter through the tiniest of openings, and even the smallest crack can be an open invitation for them. Conduct a thorough examination of the exterior walls, foundation, and other vulnerable areas to identify any visible cracks.

Repairing cracks will not only keep spiders out but also prevent water damage and other structural issues. Depending on the severity of the crack, you may need the assistance of a professional home repair person. They can evaluate the condition of the crack and provide the most appropriate and long-term solution to ensure that no spiders can infiltrate your basement.

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Sealing Doors And Windows: Preventing Spider Invasion

To prevent spiders from entering your basement, it is important to address cracks, gaps, and the entry points provided by doors and windows. Thoroughly inspect each window and door in your home, paying close attention to the spaces between frames and walls.

To secure these areas, consider using sealant, adhesive strips, or door sweeps. Fill in any noticeable gaps and create a tight seal using the sealant or adhesive strips. Focus on areas where spiders are likely to enter, such as the bottom of doors where gaps are often found. By sealing these entry points, you effectively remove potential routes for spiders to enter your basement.

Natural Spider Repellents: Plants, Chemicals, And Aromas

If you prefer to keep your basement spider-free without the use of harmful chemicals, there are several natural methods to consider. Certain plants, chemicals, and smells are known to repel spiders and can be used as effective deterrents.

One natural spider repellent is the use of certain plants. Spiders dislike the smell of plants such as lavender, mint, and eucalyptus. Planting these in your garden or placing potted plants near entry points can help keep spiders away. Additionally, essential oils derived from these plants can be diluted with water and sprayed around windows, doors, and other potential entry points to create a barrier that spiders find unappealing.

Vinegar, a common household item, is another effective spider repellent. Dilute vinegar with water and spray it around areas where spiders are commonly found, including corners and cracks. The strong smell of vinegar acts as a deterrent and can discourage spiders from venturing into your basement.

Eliminating Pests To Eliminate Spiders

Spiders are attracted to areas with an abundance of prey, so if your basement is infested with common bugs such as flies, ants, roaches, or fleas, it is important to eliminate these pests.

To minimize the presence of pests in your home, there are a few key steps you can take:

  • Promptly clean up spills and wipe away crumbs.
  • Make sure pantry items are securely stored.
  • Regularly take out the trash.

Maintaining cleanliness and practicing proper sanitation can significantly reduce the number of pests and, as a result, the likelihood of a spider infestation.

In addition to addressing these common issues, there are some preventative measures you can implement to keep spiders out of your basement. These include:

  • Repairing cracks and sealing gaps where spiders can enter.
  • Using natural spider repellents, such as essential oils or vinegar sprays.
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By taking these proactive steps, you can create a spider-free environment without resorting to harmful chemicals.


  • Address common pest issues promptly.
  • Maintain cleanliness and sanitation.
  • Repair cracks and seal gaps.
  • Use natural spider repellents.

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Frequently Asked Questions

What actually keeps spiders away?

One effective method to keep spiders away is by using white vinegar. It acts as a natural repellent that spiders dislike. Another option is citrus, which spiders also dislike. The strong scent of citrus, whether in the form of fruit, essential oils, or cleaning products, can help deter spiders from entering your space. Additionally, mint is known for its pest-repellent properties and can be used as a natural deterrent for spiders. By incorporating these natural elements into your home, you can create an environment that is less appealing to spiders and discourages them from making their presence known.

Why is my basement full of spiders?

Spiders often find their way into basements for various reasons. They seek shelter from extreme weather conditions such as excessive cold, heat, or rain. Basements usually provide the ideal secluded environment they are naturally drawn to. Spiders are solitary creatures that thrive in dark and quiet spaces, and basements often fulfill these criteria. Moreover, cluttered and undisturbed areas commonly found in basements further attract spiders, making it a perfect refuge for them.

What do spiders hate the most?

Spiders have an intense dislike for strong scents that include citrus, peppermint, tea-tree, lavender, rose, or cinnamon. The pungent aroma of these essential oils can disrupt their presence in your home. By diluting 15 to 20 drops of your preferred essential oil or a couple of capfuls of Zoflora fragrance into a spray bottle filled with water, you can create a natural spider repellent. Spraying this mixture around the house can effectively deter these eight-legged creatures, keeping your living space free from their unwelcome presence.

What are spiders most afraid of?

Spiders are most afraid of certain scents that humans find pleasant. The powerful aromas of citrus fruits like lemons and oranges repel spiders, making them steer clear of areas infused with their scent. Peppermint oil, tea tree oil, eucalyptus, and vinegar are also effective deterrents, as spiders find these fragrances quite bothersome. Incorporating these scents into your household will create an unwelcoming environment for these eight-legged creatures, ensuring they keep their distance from your home.

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