Safeguarding Lisbon Homes from Radon Gas

Lisbon is a quiet, family-friendly community of roughly 2,200 residents in eastern Linn County, Iowa, located approximately 18 miles east of Cedar Rapids along Highway 30. Known for its excellent Lisbon Community School District and its close proximity to both Cedar Rapids and Mount Vernon, the town attracts families who want small-town living without sacrificing access to larger city resources. Lisbon's residential landscape is a mix of well-maintained older homes built in the early-to-mid 1900s and newer developments that have expanded the town's footprint in recent decades. All of these homes, regardless of age, sit atop the same radon-prone geology that earned Linn County its EPA Zone 1 classification — the highest risk level for indoor radon accumulation.

The bedrock beneath Lisbon consists of Devonian-age limestone and dolomite formations, materials that naturally contain trace amounts of uranium. As this uranium undergoes radioactive decay, it releases radon gas, which travels upward through cracks and fissures in the bedrock, through the overlying glacial soils, and into any structure with ground contact. In Lisbon, where nearly every home has a full basement, the potential for radon infiltration is substantial. Common entry points include floor-wall joints, cracks in the concrete slab, exposed soil in sump pits, and gaps around utility pipes and wires. Once inside, radon can accumulate to concentrations many times higher than outdoor levels, especially during the cold months when windows and doors remain closed and the home's heating system creates negative pressure in the lower levels.

Our radon mitigation service for Lisbon homes follows the same proven methodology we use throughout our Linn County service area. We begin with a pre-installation assessment to evaluate your foundation type, identify radon entry points, and test sub-slab communication — the ability of air to move freely beneath your concrete floor. Based on these findings, we install a custom active soil depressurization system that uses a continuously running radon fan to maintain negative pressure under the slab, preventing radon from entering your living space. The exhaust pipe is routed to discharge above the roofline, where radon dissipates safely into the open air. Our systems are engineered for reliability and low maintenance, with most fans carrying manufacturer warranties of five years or more.

Lisbon homeowners can count on fast, professional service from our Cedar Rapids-based team. We also serve the surrounding communities of Mount Vernon, Mechanicsville, Cedar Rapids, and Marion. Whether you are preparing to sell your Lisbon home and need a radon test for the real estate transaction, or you want to proactively protect your family's health, we are here to help. We are licensed and insured, and we offer free estimates with no obligation. Call us today to schedule your radon test or mitigation installation in Lisbon.

Our Radon Services in Lisbon

Serving Lisbon and Surrounding Areas

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