Crawl Space Encapsulation in Edwardsville, IL

Crawl space encapsulation in Edwardsville, IL seals the crawl space floor and walls with a reinforced vapor barrier, closes the vents and gaps, and controls humidity with a dehumidifier, so ground moisture and soil gas stop rising into the house. Air Sense Environmental encapsulates crawl spaces across Madison County and ties radon control into the same job when a test calls for it.

What are the signs a Edwardsville crawl space needs encapsulation?

Edwardsville is home to Air Sense Environmental’s headquarters, and its housing mixes historic districts such as Leclaire and St. Louis Street, with stone foundations and crawl spaces, and newer subdivisions on poured basements. Watch for:

• A musty smell on the first floor, strongest after rain
• Floors that feel cold, soft or uneven above the crawl space
• Condensation on ductwork or pipes under the house
• A hygrometer reading above 60 percent in the crawl space
• Higher radon readings in rooms over the crawl space

The Edwardsville homes where Air Sense Environmental encapsulates crawl spaces most often:

• Historic homes in the Leclaire and St. Louis Street districts with stone foundations, cellars or crawl spaces
• Mid-century ranches and split-levels between downtown and the SIUE campus
• Newer subdivisions on the north and west sides with poured basements
• Rental homes and duplexes near SIUE, which landlords test between tenants

How does crawl space encapsulation work in Edwardsville?

1. Inspection. Standing water, drainage, wood moisture and access are checked first.
2. Preparation. Debris is cleared and any drainage or repair work is done before sealing.
3. Vapor barrier. A reinforced barrier is laid over the soil, run up the walls and sealed at every seam and pier.
4. Vents and gaps sealed. Outside air and soil gas entry points are closed.
5. Humidity control. A dehumidifier sized for the space holds humidity in the healthy range.

Does crawl space encapsulation help with radon in Edwardsville?

Yes. Exposed soil in a crawl space is a direct radon pathway, and a sealed membrane is the base of a sub-membrane depressurization system. If a radon test in Edwardsville comes back at or above the EPA action level of 4.0 pCi/L, the encapsulation and the radon system are designed together.

How much does crawl space encapsulation cost in Edwardsville, IL?

The price depends on the size of the crawl space, its condition and the drainage and humidity equipment it needs. Current ranges are kept in one place: how much crawl space encapsulation costs in St. Louis. Call 314-664-9807 for a free estimate on a Edwardsville home. The main crawl space encapsulation page covers materials and warranty.

Edwardsville neighborhoods and nearby communities

Air Sense Environmental works across Edwardsville, IL, including downtown Edwardsville, the Leclaire historic district and the neighborhoods around Southern Illinois University Edwardsville, in ZIP code 62025. Nearby communities with their own service pages:

• Crawl space and radon services in Glen Carbon, IL
• Crawl space and radon services in Maryville, IL
• Crawl space and radon services in Troy, IL
• Crawl space and radon services in Collinsville, IL
• All Air Sense Environmental service areas

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