Free Radon Calculators for Iowa Homes
Make sense of your radon test result and plan your next test. Instant answers, no sign-up needed.
- Instant Results
- No Sign-Up
- Based on EPA Guidance
Which Radon Tool Do You Need?
Radon Test Result Calculator
Enter your radon test result to see how it compares to the EPA action level and how much reduction you need to reach safe levels.
Use the calculatorRadon Retest Reminder Calculator
Find out when your home is due for its next radon test based on your last test and recent changes to the house.
Use the calculatorWhat Do These Numbers Mean for Your Home?
Every one of Iowa's 99 counties is in EPA Radon Zone 1, the highest-potential category, and radon is the second leading cause of lung cancer. The EPA recommends fixing homes at 4.0 pCi/L or higher and considering it between 2.0 and 3.9 pCi/L.
These tools give you a quick read on where you stand. For a real estate deadline or a mitigation decision, a professional test from an Iowa HHS-credentialed technician is the next step.
Radon Levels at a Glance
- 4.0+EPA action level: fix the home
- 2.0–3.9EPA suggests considering mitigation
- <1.0Where our systems routinely bring homes
Have a High Result Already?
Send your result and a few photos. You'll get a flat-rate mitigation price before anyone visits, backed by our 5-year warranty.
- 5-Year Warranty
- Flat-Rate Pricing
- Iowa HHS-Credentialed