Crawlspaces and Allergies: How Encapsulation Can Improve Your Health
Protecting East Texas Families from Hidden Indoor Air Quality Threats
If you or your family members suffer from unexplained allergies, persistent respiratory issues, or chronic sinus problems, the culprit might be lurking beneath your feet. Your crawlspace could be silently compromising your home’s air quality and your family’s health. At Barwell Solutions, we’ve served East Texas homeowners for years with comprehensive foundation and crawlspace solutions that protect both homes and the families living in them. From Texarkana to the surrounding areas, we understand the unique challenges that East Texas’s humid subtropical climate poses to crawlspaces and how moisture issues below your home directly impact the air you breathe every day. Our team specializes in professional crawlspace encapsulation, a proven solution that seals out moisture, prevents mold growth, and dramatically improves indoor air quality. With our commitment to honest assessments, quality materials, and long-lasting results, we help East Texas families breathe easier and live healthier in their homes.

The Hidden Connection Between Your Crawlspace and Indoor Air Quality
Most homeowners never think about their crawlspace until there’s an obvious problem, but research shows that up to 40 to 50 percent of the air in your home actually comes from your crawlspace. This phenomenon, known as the stack effect, means that whatever is in your crawlspace (moisture, mold spores, dust, allergens, even rodent droppings) rises up through your floors and into the air your family breathes.
East Texas falls within the humid subtropical climate zone, receiving more than 60 inches of rainfall annually in the far east, making crawlspaces particularly vulnerable to moisture problems. The combination of high outdoor humidity levels that can exceed 90 percent during summer months and the dark, undisturbed environment of a crawlspace creates the perfect breeding ground for mold, mildew, and other allergens.
Common Health Problems Caused by Crawlspace Issues
When your crawlspace has moisture problems and mold growth, the health consequences can be significant. Common health effects of crawlspace mold exposure include allergic reactions like sneezing, coughing, runny nose, red eyes, and skin irritation. Respiratory problems such as wheezing, shortness of breath, and worsening asthma symptoms are also common. Many people experience chronic sinus infections, fatigue, headaches, and an increased risk of infections, especially for those with compromised immune systems.
Half of the air in your crawlspace moves upward into your living space through the stack effect, carrying these contaminants with it. Children, elderly family members, and anyone with existing respiratory conditions are especially vulnerable. Many homeowners don’t realize their crawlspace is the problem until they start experiencing persistent health symptoms or notice that musty smell that won’t go away.
Beyond mold, crawlspaces can also become a source of other allergens and irritants, including dust mites that thrive in humid environments, pollen and outdoor allergens that enter through open crawlspace vents, rodent or insect droppings, and bacteria and fungi supported by high humidity.
How Crawlspace Encapsulation Works
Crawlspace encapsulation creates a controlled, sealed environment beneath your home that keeps moisture, pests, and contaminants out. The process involves several key steps. First, we install a heavy-duty vapor barrier (typically reinforced polyethylene) across the floor and up the walls of your crawlspace. This barrier prevents ground moisture from evaporating into the air.
Next, all vents and openings are sealed to prevent humid outdoor air from entering. In East Texas’s climate, those open vents that were supposed to help actually make moisture problems worse by allowing hot, humid air inside. We then install a commercial-grade dehumidifier to control any residual moisture and maintain optimal humidity levels below 60 percent.
If needed, we also address drainage issues with proper grading, interior drainage systems, or sump pumps to handle any water intrusion. Finally, insulation may be added to crawlspace walls to improve energy efficiency and temperature stability.
Why East Texas Homes Especially Need Encapsulation
East Texas’s humid subtropical climate, with April and May being the wettest months and high humidity throughout the warm season, makes crawlspace encapsulation especially important in our region. The outdoor humidity typically climbs from 20 to 30 percent in early spring to over 90 percent by mid-July, staying high through summer.
This prolonged exposure to moisture creates persistent problems in unencapsulated crawlspaces. The warm, humid air condenses on cooler surfaces, creating standing water and the perfect conditions for mold growth. With the region receiving up to 48 inches of precipitation in a single year, and flooding being common near rivers and in low-lying areas, East Texas homes face continuous moisture challenges.
Signs You Need Crawlspace Encapsulation
Watch for these warning signs that your crawlspace is affecting your health: a persistent musty or earthy smell in your home, especially near floors or HVAC vents; unexplained allergy symptoms or worsening asthma that improve when you leave home; visible mold growth on walls, floors, or surfaces in your crawlspace; excessive humidity in your home even with air conditioning running; buckling hardwood floors or water stains on ceilings; increased pest activity, especially insects that thrive in damp conditions; and higher than normal energy bills as your HVAC system works harder to manage humidity.
Breathe Easier with Professional Crawlspace Encapsulation
Your family’s health is too important to ignore the air quality threats hiding beneath your home. At Barwell Solutions, we provide comprehensive crawlspace encapsulation services designed specifically for East Texas’s challenging climate. Our solutions include thorough moisture assessment, professional-grade vapor barriers, sealed vents and entry points, commercial dehumidification systems, and optional drainage solutions when needed.
Don’t let your crawlspace compromise your family’s health any longer. Contact Barwell Solutions today for a thorough crawlspace assessment. We’ll provide an honest evaluation of your situation and recommend the right solutions to protect your home and improve your indoor air quality. Serving East Texas and surrounding areas including Texarkana, we’re your trusted partner for healthier homes and lasting peace of mind.
