How To Get Rid Of Spider In Basement

You’ve probably come across some of these critters in your basement If you’re wondering how to get rid of spider in basement.

There’s a quick solution. When equipped with some focused cleaning, a selection of natural repellents, and a few simple precautions.

You’ll be fully capable of turning your basement into a haven free from spiders sooner than you think.

Understanding Why Spiders Are in Your Basement

Spiders set up shop in basements for a few reasons. First, basements are often cool, dark, and undisturbed.

These are perfect conditions for spiders and their webs. Second, basements frequently have cracks and crevices leading outside.

Thus, allowing easy access for spiders. Finally, basements are a prime spot for spiders to find food, like other insects seeking shelter. But let’s find out how to get rid of spider in basement.

Entry points to seal

Check the perimeter of your basement for any cracks or holes in the foundation, especially where pipes or wires enter from outside.

Seal these up with caulk, weatherstripping, door sweeps, or repair damaged screens to prevent spiders from sneaking in.

Reduce hiding spots

Spiders love cluttered, undisturbed areas to build their webs.

Go through your basement and clear out any boxes, debris, and firewood. Plus, other items that are stacked against walls that spiders can easily access.

The fewer places to set up camp, the less likely they will stick around.

Control moisture and food sources

Excess moisture and insects like flies, ants, or mosquitoes in the basement will attract hungry spiders looking for an easy meal.

Fix any leaks or sources of standing water and set up dehumidifiers to maintain a lower humidity.

You should also eliminate access to insects by sealing up any cracks or crevices they use to get inside.

Limiting access points, decluttering hiding spots, and controlling moisture and food sources will make your basement much less spider-friendly.

Removing Spider Access Points to Your Basement

You need to cut off their access points to get rid of spiders in your basement for good.

Seal all the cracks!

First, seal any cracks or holes in walls, floors, windows, pipes, etc. Spiders can enter through openings as small as 1/8 of an inch.

So, inspect carefully and seal them with caulk, weatherstripping, door sweeps, or repair damaged screens.

Inspect the basement door!

Check the basement entry door for gaps. Additionally, install a door sweep or weatherstripping to prevent spiders and critters from sneaking under.

The space between the door and frame is a highway for spiders to get in.

Identify sources of entry

Look for openings around pipes, wires, cables, and ducts that lead into the basement.

You will need to seal them to remove accessible access routes for spiders. Stuff some steel wool into any spots you can’t caulk or seal for good measure.

Rectification efforts

Repair or replace damaged basement windows and screens.

Spiders love to make their way through rips, tears, or holes to camp in your basement. Ensure windows seal and lock properly when shut.

Do not forget the vent

Vent covers are another thing to check. Replace or repair any damaged vent covers or grates leading into the basement and caulk.

Alternatively, seal around the edges to eliminate any spaces for spiders to crawl through.

You’ll cut off spiders by methodically sealing, repairing, and blocking potential access points to your basement.

As a result, make your space much less inviting to them and other unwanted guests.

Natural Spider Repellents to Use in Your Basement

Opting for natural spider repellents presents an excellent method to get rid of spider in basement.

Additionally, consider experimenting with a homemade dust mite spray to prevent these tiny insects from lingering around.

Here are a few natural ingredients to use:

Essential Oils

Certain essential oils naturally repel spiders and other insects. Among the most potent options are eucalyptus and peppermint oils. Combine a few drops of the essential oil with water in a spray bottle.

Shake well and spray in your basement’s corners, cracks, and crevices where spiders like to build webs.

The pungent smell will deter spiders from sticking around. It would be best to reapply the spray every few days to keep the scent strong.


Plain white vinegar is a natural spider-repellent and disinfectant.

Fill a spray bottle with equal parts white vinegar and water. Spray down basement walls, floors, windowsills, and any areas where you see spider webs or droppings.

The acid in vinegar deters spiders, and the smell is unpleasant to them. Vinegar is a great natural alternative to harsh chemicals; you likely already have some in your pantry.

Diatomaceous Earth

Diatomaceous earth is a natural powder that dehydrates and kills spiders and insects. It’s non-toxic to humans but deadly to spiders.

Apply diatomaceous earth in areas where you see spiders entering the basement, such as cracks, crevices, pipes, and utility holes.

It will dehydrate any spider that comes in contact with it. Reapply every few weeks or after it gets wet. Wear a mask when applying, as it can irritate your lungs.

Using natural spider repellents and pest control methods is eco-friendly to evict your basement spiders without toxic chemicals.

Try combining a few of these natural ingredients for the best spider-repelling power.


By sealing up any cracks or holes leading inside, clearing clutter where spiders can hide, improving lighting, and using natural repellents, you’ll make your basement inhospitable to spiders in no time.

Stay vigilant, reapply repellents as directed, and make occasional sweeps of the basement to catch any stragglers.

With diligent work on the front end, you’ll enjoy a spider-free space in the comfort of your home. Sweet dreams!

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