Free tools
Free Radon Calculators
Compare your test result to the EPA and WHO levels, and see what a radon fan costs to run. Results show in your browser. These are estimates, not quotes.
Free tools
Radon Calculators for Iowa Homeowners
TOOL 01 Radon Test Result Checker Enter your radon result in pCi/L to see how it compares to the EPA action level and WHO reference level, and how much reduction a system would need. Open calculator → TOOL 02 Radon Fan Operating Cost Calculator Estimate what your radon fan costs to run each month and year based on fan wattage and your electricity rate. Open calculator →
Next steps
What to Do With Your Result
Every Iowa county is in EPA Zone 1. If your result is 4.0 pCi/L or higher, the next step is a mitigation quote. If you do not have a recent number, start with professional radon testing.
- No recent test? Book a 48-hour CRM test with an hourly report.
- 4.0 pCi/L or higher? See residential radon mitigation, with a post-mitigation test included.
- Fan noisy or alarm on? We handle radon system maintenance and fan replacement.