Know your number before you decide anything
You can't see or smell radon, so testing is the only way to know your level. Testing is inexpensive and takes just a few days.
Types of radon tests
- Short-term tests (2 to 7 days): charcoal canisters or similar kits, or professional continuous radon monitors (CRMs). Good for a quick answer.
- Long-term tests (90+ days): alpha track or electret devices that show a better annual average, since radon varies with weather and season.
- Continuous radon monitors: professional electronic devices that record hourly readings; standard for real estate.
Testing tips
- Test in the lowest lived-in level (usually the basement).
- Keep windows and exterior doors closed for 12 hours before and during short-term tests.
- Place the test away from drafts, sump pits, and exterior walls.
- Don't test during severe storms or high winds if you can avoid it.
Reading your results
| Result | What it means |
|---|---|
| --- | --- |
| Below 2.0 pCi/L | Low; retest every few years |
| 2.0 to 3.9 pCi/L | Consider mitigation; EPA says no level is risk-free |
| 4.0 pCi/L or higher | EPA recommends fixing your home |
Related Radon Mitigation Topics
Mitigation SystemsReal Estate RadonCrawl Space SystemsFan Replacement & RepairNew ConstructionHigh Test ResultsFan Not WorkingStill High After MitigationFinishing a BasementCost Guide
Frequently Asked Questions
How much does professional radon testing cost?
Often about $100 to $250 for a continuous monitor test in the Omaha area.
Are home test kits accurate?
Yes, when used per instructions and sent promptly to the lab. Professional monitors add tamper detection and hourly data.
Ready for a straight answer? Tell us about your project and we'll connect you with a licensed, insured local pro for a written quote.
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