Crawl Space Allergens: The Secret Culprit Behind Your Family’s Allergy Symptoms

When allergy symptoms hit, most people look to pollen, pet dander, or dust mites as the likely offenders. But what if the real source of your family’s sneezing, coughing, or itchy eyes isn’t inside your living room—but beneath your feet?

At Atlantic Corp, we often say: "What’s lurking in your crawl space might be affecting your whole home.” And for many families, the crawl space is a hidden hotspot for allergens that quietly compromise indoor air quality.

What’s Going On Beneath Your Home?

Crawl spaces are notorious for being damp, dark, and poorly ventilated—all of which make them the perfect breeding ground for mold, mildew, and other airborne irritants. These issues often stem from:

• Excess Moisture: Whether from poor drainage, high humidity, or plumbing leaks, excess moisture is the gateway to allergen growth.

• Mold and Mildew: Once moisture is present, mold and mildew follow. Their spores can easily rise into your living space through the "stack effect"—the natural upward movement of air in your home.

• Insulation Breakdown: Over time, insulation can absorb moisture, harbor pests, or disintegrate, becoming yet another source of irritants.

• Dust and Debris Accumulation: Crawl spaces often collect dust, rodent droppings, and other debris that contribute to indoor allergies when left unchecked.

  
  

The air in your crawl space doesn’t stay there. In fact, up to 50% of the air you breathe on your first floor comes directly from the crawl space. That means every mold spore, dust mite, and allergen down below can end up circulating through your HVAC system and into your lungs.

Signs Your Crawl Space Might Be Affecting Your Family’s Health

• Persistent allergies or asthma symptoms, especially in children or elderly family members

• Musty odors or visible mold growth near vents or baseboards

• Increased dust despite frequent cleaning

• Unexplained humidity inside your home

The Long-Term Solution to Allergens: Crawl Space Sealing

While dehumidifiers and air purifiers can offer some relief from indoor allergens, they’re only treating the symptoms—not the source. These devices help reduce airborne irritants after they’ve entered your home. But if allergens are continually being pulled up from your crawl space, you’re stuck in a never-ending cycle of filtering what should never have been there in the first place.

The most effective, long-term solution to allergy-proofing your home is to stop allergens at their entry point—by sealing and protecting your crawl space at the source.

At Atlantic Corp, we provide comprehensive crawl space solutions that do more than just clean up. Our approach is designed to eliminate moisture, control airflow, and block allergen pathways so they never enter your living space. Here’s what our proven process looks like:

Thorough Inspection

We begin with a complete inspection of your crawl space to identify any signs of moisture intrusion, visible mold, mildew, pest activity, or insulation damage. We also evaluate structural integrity and airflow issues. This step allows us to customize your solution based on your home’s unique conditions.

Removal of Contaminated Materials

Old, damp insulation, animal droppings, rotting wood, and moldy debris are carefully removed. These materials are often loaded with allergens and contaminants that contribute to poor indoor air quality.

Mold Remediation

If we detect mold growth, we use EPA-approved solutions to kill and remove it at the source. Mold remediation ensures spores aren't continuously circulated through your home’s HVAC system.

Vapor Barrier Installation

We install high-quality, professional-grade vapor barriers that cover the ground and crawl space walls. This layer prevents ground moisture from rising into the air, dramatically reducing humidity levels and the potential for mold growth.

Optional Add-Ons: Dehumidifiers and Sump Pumps

For added protection, we can install energy-efficient dehumidifiers to keep the space dry year-round and sump pumps for areas prone to flooding. These tools maintain long-term dryness and prevent costly water damage.

Full Encapsulation

Encapsulation is the gold standard in crawl space protection. We fully seal the area—walls, floors, and vents—to separate your home from the damp earth below. This process transforms the crawl space into a clean, dry, and conditioned zone that no longer feeds allergens into your home.

By fully sealing your crawl space, you create a healthier home environment from the ground up. This not only supports better air quality but can also lower your energy bills, increase your home’s value, and extend the life of your HVAC system.

One Call to Allergy-Proof Your Home

If your family is suffering from year-round allergy symptoms and you’ve tried everything else, it’s time to look down. Your crawl space might be the secret culprit. Atlantic Corp is here to help you breathe easier—starting from the ground up.

Contact us today for a crawl space inspection and discover how our moisture and mold control services can protect your home and your health.