Interior Radon Mitigation System in Huntsville

Radon gas enters homes through crawl spaces, foundation cracks, and gaps around pipes. Because radon forms from uranium decay in soil, basements and lower floors are often the most affected. Interior Active Soil Depressurization (ASD) is the most effective way to stop radon before it reaches your living space.

At Heartstrong, we provide interior ASD installation for homes in Huntsville, Madison, Athens, Guntersville, and nearby areas. Our team uses advanced equipment to create a safer, radon-free environment. Call us for a free estimate or click here to schedule your radon remediation service today.

How Does Interior Active Soil Depressurization Work?

Interior ASD reduces radon by drawing soil gases from beneath your home and venting them safely outdoors before they can enter indoor spaces. This is achieved through a controlled installation and continuous airflow system:

• A pipe is installed through the basement or garage floor into the soil below the slab.
• The system vents through piping that exits above the roofline for safe dispersal.
• A continuously running fan creates suction beneath the foundation.
• Soil gases, including radon, are pulled through the system and released outdoors.

Will Interior Active Soil Depressurization Work for My Home?

Interior Active Soil Depressurization is often an excellent solution for homes with finished basements. The system keeps the fan protected from outdoor conditions, and the piping is installed discreetly so it does not impact your home’s appearance.

Interior ASD is effective for a wide range of foundations, including homes with basements, crawl spaces sealed with a vapor barrier, and slab-on-grade foundations where piping can be installed through the concrete. We carefully evaluate your home’s layout to determine the most effective system for long-term radon reduction.

What to Expect During Interior ASD Installation

Most homeowners quickly adjust to the system and often forget it is there after the first week. The main consideration is that a pipe must be routed through the interior of your home. This may require small access openings in drywall, which are carefully repaired and finished once installation is complete. The piping is typically routed through low-visibility areas such as closets, garage corners, or utility spaces.

The system operates quietly, and you may notice a low, consistent hum from the fan, similar to a bathroom exhaust fan.

How To Read Your Radon Monitor

Every interior ASD system includes a manometer, a small clear tube mounted on the pipe. It gives you a quick way to check system performance. If the liquid levels are uneven, the system is working properly.

If the levels are even, the fan may have stopped, and you should call us. We also recommend testing radon levels again 24 hours after installation. Our goal is to reduce radon levels as low as possible, well below the EPA action level of 4.0 pCi/L.

What Sets Us Apart?

At Heartstrong, we provide radon remediation designed for long-term performance. Here’s what makes our team different:

• Over 20 years of hands-on experience (since 2001)
• Certified and trained radon technicians
• Knowledge of local soil conditions and home layouts
• Custom system design for each property