Crawl Space Check: Non-Chemical Moisture & Pest Fixes Every Homeowner Should Know
CRawlspace CHeck: NonChemical MOisture & Pest Fixes

Crawl Space Check: Non-Chemical Moisture & Pest Fixes Every Homeowner Should Know
What That Crawl Space Smell Is Really Telling You
You lift the crawl space access pane and immediately, something smells off.
That musty, stale odor is often the first sign that **moisture and pests are active beneath your home**. In this episode of *Bugged Out: The XTERMIGATOR Report*, the ABCO team walks homeowners through a **safe, non-chemical approach** to identifying and fixing crawl space issues before they turn into costly problems.
Understanding the Basics (Without the Jargon)
Before diving into solutions, the episode breaks down a few key terms every homeowner should know:
- Vapor Barrier**: A protective ground covering that blocks moisture from rising into your crawl space
- Rim Joist**: The outer edge of your floor structure—one of the most common pest entry points
- Passive Ventilation**: Natural airflow pathways that reduce humidity without mechanical systems
These simple concepts are the foundation of effective, long-term crawl space health.
Why Crawl Spaces Attract Moisture & Pests
Crawl spaces are naturally vulnerable environments. They’re:
- Dark
- Damp
- Often poorly ventilated
This creates the perfect conditions for:
- Mold and mildew
- Rodents and insects
- Structural wood damage
And here’s the key insight to keep in mind: **moisture almost always comes first—pests follow close behind.** When conditions become damp or humid, it creates an inviting environment for various pests to thrive and multiply. This means that if you notice an increase in moisture levels, it's essential to address that issue promptly, as it can lead to an influx of unwanted insects and critters that may invade your space.
The Non-Chemical IPM Approach (Step-by-Step)
Instead of relying on sprays or chemicals, this episode focuses on Integrated Pest Management (IPM)—a smarter, long-term strategy.
1. Start With a Crawl Space Inspection
Begin at the access point and:
- Take photos to “map” problem areas
- Look for moisture, droppings, or damaged materials
- Identify gaps or entry points
👉 This visual baseline helps track progress and spot patterns.
2. Apply a Reversible Vapor Barrier Patch
If moisture is present:
- Install or repair sections of vapor barrier
- Focus on exposed soil areas
- Use materials that are code-compliant and reversible
👉 This step alone can dramatically reduce humidity levels.
3. Remove or Elevate Pest Habitats
Pests thrive in clutter and contact with damp surfaces.
Key actions:
- Remove debris or organic material
- Elevate stored items off the ground
- Keep insulation dry and intact
👉 Less habitat = less pest activity.
4. Monitor for 7 Days
After making changes:
- Check for new signs of activity
- Watch for moisture returning
- Note any new odors or entry points
👉 Monitoring ensures your fixes are actually working.
Warning Signs You Shouldn’t Ignore
While many crawl space issues can be handled with simple fixes, some situations require professional help.
🚨 Call a Pro If You Notice:
- Structural wood decay
- Mud tubes (possible termite activity)
- Exposed or damaged wiring
- Persistent moisture despite repairs
These are signs of deeper issues that need expert attention.
Why Non-Chemical Solutions Work
This episode emphasizes a powerful idea:
You don’t always need chemicals to solve pest problems.
By focusing on:
- Moisture control
- Habitat reduction
- Sealing entry points
…you address the root cause, not just the symptoms.
A Simple Crawl Space Check You Can Do This Weekend
You don’t need to be an expert to take action.
Start with this quick checklist:
✔ Open your crawl space access
✔ Check for strong odors
✔ Look for visible moisture or debris
✔ Take a few photos for reference
Even a small inspection can reveal early warning signs—and help you avoid expensive repairs later.
Final Thoughts: Small Fixes, Big Impact
Crawl space issues don’t fix themselves—but they also don’t have to be overwhelming.
With a simple, non-chemical approach and a focus on moisture control, homeowners can:
- Reduce pest activity
- Protect their home’s structure
- Improve indoor air quality
Listen to the Full Episode
Want to hear the full walkthrough and expert insights?
👉 Check out this episode of Bugged Out: The XTERMIGATOR Report on the ABCO XTERMIGATORS Podcast Hub.
Need Professional Help?
If your crawl space shows signs of serious moisture or pest activity, the team at ABCO XTERMIGATORS is here to help.
Schedule an inspection today and get a customized, long-term solution.









