If you’re testing your home for radon, you may wonder how long the test really needs to run. Choosing between short-term and long-term radon testing depends on whether you need results quickly or want a broader picture of your home’s average radon levels. Understanding that difference can help you pick the testing approach that makes sense for your situation.
When Short-Term Radon Testing Makes Sense
Short-term radon tests typically remain in the home for two to 90 days, depending on the testing device. The Environmental Protection Agency (EPA) requires a minimum test period of 48 hours for certain short-term measurements. Because results come back relatively quickly, this option can be especially useful when timing matters.
A short-term test may fit a real estate transaction with a closing deadline or a homeowner who wants to follow up on an earlier radon concern. Testing conditions matter, too. Following the device instructions and any closed-house requirements helps produce a result you can use with confidence.
When Long-Term Radon Testing Makes Sense
A long-term test stays in place for more than 90 days. Since radon levels naturally rise and fall, measuring over a longer period can provide a better estimate of the home’s year-round average.
Long-term testing may be a better fit when there is no immediate deadline and you want a broader view of your home’s radon levels. When comparing short-term and long-term radon testing, the right choice depends on how soon you need an answer and what you want that result to tell you.
When It’s Time To Choose Your Test
Start with the decision you need to make. A faster result may be more useful during a home sale, while a longer testing period can make sense when your timeline is flexible.
Consider these questions before choosing:
- Do you need results within a specific timeframe?
- Are you testing because of a real estate transaction?
- Do you want a better estimate of your year-round average?
- Are you following up on an earlier elevated result?
If a test shows 4.0 picocuries per liter (pCi/L) or higher, the EPA recommends fixing the home to reduce radon. A professional radon gas testing service can help you choose the appropriate testing method and understand what the results mean.
When You’re Ready for Clear Radon Results
The right test depends on what you need the result to do for you. Whether you need a quick result or a longer look at your home’s radon levels, accurate testing helps you know whether you need to take further action.
Affordable Radon Services provides certified radon testing for homeowners throughout Aurora and the Denver Metro area. If you’re deciding between a short-term test and longer monitoring, contact our trusted local experts for reliable testing, clear results, and straightforward next steps.
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