Radon Mitigation in Ames, IA
Ames sits on Story County's deep glacial-till deposits, which contain higher uranium concentrations than most Iowa counties. Iowa State University's research has documented Story County as one of Iowa's most-studied radon regions. The university community drives high awareness and testing rates, and Ames real estate transactions almost always include radon testing.
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Who provides radon mitigation in Ames, IA?
Iowa Radon Experts connects Ames homeowners with NRPP-certified radon mitigation specialists serving Story County. Ames averages 6.5 pCi/L — above the EPA action level of 4.0 — so testing and mitigation are routed to a qualified local partner, typically within hours. Free quote within 24 hours. Call (319) 382-6040.
Why Do Ames Homes Have Elevated Radon?
Ames sits on Story County's deep glacial-till deposits, which contain higher uranium concentrations than most Iowa counties. Iowa State University's research has documented Story County as one of Iowa's most-studied radon regions. The university community drives high awareness and testing rates, and Ames real estate transactions almost always include radon testing.
Geology: Story County's till deposits release radon more uniformly year-round than other Iowa regions, making short-term tests more representative than in valley areas.
Permits: Iowa State University Extension provides free radon test kits to Story County residents. No state mitigation permit required.
Neighborhoods we serve in Ames: Old Town, Campustown, North Grand, Somerset, Northwood.
All Ames radon work is performed by NRPP-certified, IDPH-registered partner contractors routed through Iowa Radon Experts.
How Does Ames Compare on Iowa Radon Levels?
Story County averages 6.5 pCi/L indoor radon — well above the EPA action level of 4 pCi/L. Here's how Ames's radon profile compares to other Iowa cities we serve.
| Metric | Ames, IA | Iowa State Average | US National Average |
|---|---|---|---|
| Average indoor radon | 6.5 pCi/L | 8.5 pCi/L | 1.3 pCi/L |
| EPA Radon Zone | Zone 1 | Zone 1 (majority) | Varies (Zones 1–3) |
| % homes elevated (>4 pCi/L) | 67% | ~71% (5 in 7) | ~6% |
| Multiple of EPA action level | 1.6x | 2.1x | 0.3x |
| EPA action level | 4.0 pCi/L | 4.0 pCi/L | 4.0 pCi/L |
Check Your Ames Radon Test Result Against the EPA Action Level
Enter your radon test result (in pCi/L) to see whether your Ames, IA home meets the EPA action level of 4.0 pCi/L — and exactly what to do next based on official EPA guidance. Ames averages 6.5 pCi/L, with 67% of homes testing elevated.
Enter the picocuries-per-liter value from your charcoal canister or continuous radon monitor (CRM) report.
How the calculator maps test results to EPA guidance
| Radon level (pCi/L) | Risk tier | EPA-aligned recommendation |
|---|---|---|
| 0.0 – 1.9 | Below average — low | No action needed. Re-test every 2 years or after major renovation. |
| 2.0 – 3.9 | Elevated — EPA "consider mitigating" | Consider mitigation, especially with smokers, children, or lower-level bedrooms. Run a long-term (90+ day) test for confirmation. |
| 4.0 or higher | EPA Action Level — fix the home | Install an active radon mitigation system. EPA recommends fixing the home as soon as practical. |
Which Radon Services Are Available in Ames?
Radon Mitigation
Active radon mitigation system installation for Iowa homes — sub-slab depressurization is the most common method, reducing indoor …
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Radon Testing
Professional radon testing services for Iowa homes — short-term (2-7 day) and long-term (90+ day) testing options. Required for mo…
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Sub-Slab Depressurization Installation
Iowa's most common radon mitigation method — sub-slab depressurization (ASD) creates negative pressure beneath the basement slab, …
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Crawl Space Radon Mitigation
Sub-membrane depressurization for Iowa homes with crawl spaces — includes vapor barrier installation, sealing, and active depressu…
Learn more →Do Ames Real Estate Transactions Require Radon Testing?
Iowa Code requires sellers to disclose any known radon test results to buyers. In practice, most Ames real estate transactions now include a radon contingency in the purchase agreement — and given that 67% of Ames homes test elevated, buyers are increasingly insisting on pre-closing mitigation when results exceed 4 pCi/L.
Our partner contractor network handles closing-timeline mitigations within typical 7–14 day windows, including post-mitigation verification testing to satisfy lender and inspector requirements.
Are Winter Radon Levels Higher in Ames?
Yes. Ames's cold winters intensify radon entry through the stack effect — heated indoor air rising creates negative pressure in basements that pulls soil gas into the home at higher rates than warmer climates. Ames winter radon readings are typically 30–50% higher than summer readings.
EPA recommends radon testing under closed-house conditions, which align naturally with Ames winters. If your Ames home tested low in summer, retest in winter for an accurate baseline before deciding on mitigation.
Recent Ames Radon Mitigation Projects
Recent radon mitigation projects across Iowa — every image is geo-tagged to a specific Iowa city and entity-described for transparency and provenance. All work performed by NRPP-certified, IDPH-registered partner contractors.
📍 Des Moines, Iowa 
📍 Cedar Rapids, Iowa 
📍 Iowa City, Iowa 
📍 West Des Moines, Iowa Ames, IA Radon FAQs
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The Closest Iowa Metros to Ames We Also Serve
The nearest cities to Ames in our statewide partner network. Click any for its county radon average, local profile, and a free quote.
Ready to Get a Free Ames Radon Quote?
Same-day routing to a Story County NRPP-certified partner. Written quote within 48 hours of site assessment.