Radon Mitigation for North Liberty's Growing Community

North Liberty has earned the distinction of being one of the fastest-growing cities in Iowa, with its population surging from just a few thousand residents in the early 2000s to more than 20,000 today. Located in Johnson County just north of Iowa City and Coralville along the Interstate 380 corridor, North Liberty attracts young families and professionals with its modern amenities, new housing developments, excellent schools, and proximity to the University of Iowa. The rapid pace of residential construction means thousands of new homes have been built across the community in the past two decades — and every one of them needs to be tested for radon. Johnson County, like neighboring Linn County, is classified as EPA Zone 1 for radon risk, indicating that average indoor radon levels are expected to exceed the 4.0 pCi/L action level.

The geology beneath North Liberty is characterized by glacial deposits overlying Silurian and Devonian carbonate bedrock — limestone and dolomite formations that contain naturally occurring uranium. As this uranium decays, radon gas is produced and travels upward through the soil column. In North Liberty's newer subdivisions, homes are typically built on poured-concrete foundations with full basements, a construction style that is standard for the region but that also provides numerous potential entry points for radon. Even with modern building codes that may include passive radon-resistant features such as sub-slab gravel beds and sealed vapor barriers, these passive systems alone are often insufficient to keep radon levels below the EPA action threshold. Active mitigation — which adds a continuously running fan to the passive system — is frequently necessary to achieve safe indoor air quality.

For North Liberty homeowners who purchased new construction, the time to test for radon is now if you have not already done so. Many new-home builders include a passive radon pipe in the construction, but this pipe only becomes an effective mitigation system when an active fan is added. Our team can retrofit any passive system with a high-performance radon fan, transforming it into a fully active sub-slab depressurization system in just a few hours. For older homes in North Liberty that lack any radon provisions, we install complete mitigation systems from the ground up, including core-drilling through the basement slab, installing sub-slab piping, and mounting an exterior or interior fan unit with discharge above the roof peak.

North Liberty's position along the I-380 corridor between Cedar Rapids and Iowa City puts it right in the heart of our service area. We also serve the surrounding Johnson County communities of Coralville, Solon, Tiffin, and Iowa City, as well as all of Linn County to the north. Our team understands the specific construction practices used by North Liberty's major home builders and can design mitigation solutions that integrate seamlessly with your home's existing systems. We are licensed and insured, and we provide free estimates with transparent pricing. Every installation includes a post-mitigation radon test to confirm that your home's levels are well below the EPA guideline. Call us today to protect your North Liberty home.

Our Radon Services in North Liberty

Serving North Liberty and Surrounding Areas

Cedar Rapids Marion Hiawatha Center Point Ely Mount Vernon Lisbon Solon North Liberty Coralville