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Crawl Space Pest Control – How To Get Rid of Pests

Have you ever wondered about the scurrying sounds in the dark corners of your home or noticed peculiar signs that something might be amiss? Weird scratching noises and animal droppings are sure signs of pests present in your crawl space. And that’s never good.

In this article, we’ll guide you through the best practices for getting rid of those pesky critters in crawl spaces and explore the ultimate solution – fumigation.

Identifying Common Crawl Space Pests

Recognizing the signs of infestation is the first step in defending your home against these unwelcome guests. Here’s a comprehensive list of common crawl space pests:


  • Recognizable by discarded wings and mud tubes.
  • Infamous for causing structural damage to wooden elements.


  • Rats and mice seek refuge in crawl spaces, leaving droppings and chewed materials.
  • Audible scratching or scampering sounds may indicate their presence.


  • Ants: Marching trails or visible nests.
  • Cockroaches: Fecal matter, egg cases, or an unpleasant musty odor.
  • Silverfish: Feeding on paper, fabrics, and cardboard.
  • Beetles: Wood-boring varieties can compromise structural integrity.
  • Earwigs: Recognizable by pincers on their abdomens.


  • Webs in corners, along with egg sacs and shed exoskeletons.
  • While generally beneficial, an overpopulation may indicate an imbalance.

Moisture-Loving Pests:

  • Fungus and mold thrive in damp crawl spaces, contributing to respiratory issues.
  • Millipedes and centipedes seek moisture-rich environments.

Wildlife Intruders

  • Snakes, raccoons, or opossums may find their way into crawl spaces.
  • Scratching or hissing sounds may signify a larger wildlife presence.

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DIY Methods for Crawl Space Pest Control

Now that we’ve identified the potential invaders in our crawl spaces, let’s talk some more about what you can do to remove them on your own.

Inspecting and Sealing Entry Points

Seal any visible cracks, gaps, or openings using a combination of caulk and weatherstripping. Bugs and spiders are adept at finding entry points, so a thorough inspection and proactive sealing can significantly deter their infiltration.

Proper Ventilation to Reduce Moisture

Many pests, including spiders and moisture-loving insects, thrive in damp environments. Ensure your crawl space has proper ventilation to reduce excess moisture. Install vents and use a dehumidifier if necessary.

Using Natural Repellents

Nature offers an array of repellents that crawl space bugs, and spiders find unappealing. Consider using substances like diatomaceous earth, cedar oil, or citrus peels strategically placed in the crawl space.

Regular Cleaning and Decluttering

A cluttered crawl space provides the perfect hiding spots for pests. Regularly clean and declutter the area, eliminating potential harborage sites. Remove unnecessary debris, cardboard, and unused items.

Professional Crawl Space Pest Control Services

While DIY methods offer a solid foundation for crawl space pest control, the best way to kill bugs in crawl space is by using professional services. Entrusting your crawl space to experienced hands results in a thorough and effective approach.

Professional pest control technicians bring a wealth of knowledge and experience to the table. They conduct comprehensive inspections, identifying not only the visible pests but also potential breeding grounds and entry points.

How to Fumigate Crawl Space

Getting rid of rodents and bugs in the crawl space is one thing, but cleaning and proofing the space afterward is equally important. And it’s something you don’t want to do on your own as often it requires special protective equipment and deep cleaning techniques.

That’s where we come in. At Envirosmart Solutions, we are experts at rodent exclusion, proofing, and droppings cleanup services. We take the hardest part out of your hands, removing animal droppings and bad smells and leaving your space clean and secure, minimizing the problem of pests in the future. Contact us today to discuss your proofing and rodent droppings cleanup needs.


  1. Envirosmart Solutions, How To Avoid These Home Destroying Animals
  2. Terminix, Crawl Space Pest Control Tips
  3. Pestworld, Bugs and Mice in Crawl Space
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