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Frequently Asked Questions

Common questions about radon testing and mitigation in Cedar Rapids, Iowa. Can't find your answer? Call us at (319) 528-5190.

The EPA action level is 4 pCi/L. Iowa has some of the highest average radon levels in the US — the state average is over 8 pCi/L. Cedar Rapids and Linn County frequently test above 4 pCi/L. We recommend testing any home and mitigating at 4 pCi/L or above.

Radon mitigation in Cedar Rapids typically costs $800–$1,500 for a standard sub-slab depressurization system. The exact cost depends on your home's foundation type, size, and radon levels. We include post-mitigation testing to confirm effectiveness.

Most radon mitigation system installations take 4–6 hours in a single day. You can use your home normally immediately after installation. Post-mitigation testing is done 24–48 hours after installation.

Yes — we serve all of Linn County including Marion, Hiawatha, Center Point, Ely, Mount Vernon, Lisbon, Solon, and into Johnson County including North Liberty and Coralville.

Yes — we guarantee our systems will reduce your radon level below 4 pCi/L or we return to fix it at no additional charge. We include follow-up testing to verify results.

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Our team is happy to answer any questions about radon testing or mitigation. Call us directly or send us a message — we respond within 1 business hour.

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How long does radon mitigation installation take?

Most standard sub-slab depressurization systems are installed in one day — typically 3 to 5 hours for a single-family home. More complex situations, like homes with multiple foundation types (combination of slab and crawl space), may take longer. We'll give you a realistic timeline during your free estimate.

What radon level is considered safe?

The EPA action level for radon is 4.0 pCi/L (picocuries per liter of air). At or above this level, mitigation is strongly recommended. The EPA also suggests that any level between 2.0 and 4.0 pCi/L should be mitigated if possible. There is no truly "safe" level of radon — it's a carcinogen — but modern mitigation systems routinely achieve levels below 2.0 pCi/L, and often below 1.0 pCi/L.

Will a radon mitigation system affect my home's energy efficiency?

A properly installed sub-slab depressurization system draws air from beneath the foundation — not from your conditioned living space — so the impact on heating and cooling costs is minimal. The fan motor draws a small amount of electricity continuously, typically $5–$15 per month depending on the system. The health benefit far outweighs the modest operating cost.

Do new homes in Iowa need radon mitigation?

Many newer Iowa homes are built with passive radon-resistant construction features, but passive systems don't always reduce radon to safe levels. Even with radon-resistant new construction, testing after move-in is recommended. If levels are elevated, activating the system (adding a fan) converts it to an active mitigation system quickly and inexpensively. We test and activate these systems throughout the Cedar Rapids area.

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