Radon Gas Testing
48-hour continuous monitoring to measure radon, a naturally occurring gas you can't see or smell, against EPA guidance.
How Testing Works
- ✓Continuous radon monitor placement — set up in the lowest livable level of the home, per standard testing protocol.
- ✓48-hour minimum monitoring period — closed-house conditions are maintained to get an accurate reading.
- ✓Hourly data logging — the device records readings throughout the test period, not just a single average.
- ✓Comparison to the EPA action level — results are measured against 4.0 pCi/L, the level at which the EPA recommends mitigation.
- ✓Written results report — a summary suitable for real estate transactions or your own records.
Why It Matters
Radon is a naturally occurring radioactive gas produced by the breakdown of uranium in soil and rock. It's colorless and odorless, so a test is the only way to know whether it's present in a home at elevated levels. It can seep in through foundation cracks, gaps around pipes, and other openings, and levels can vary significantly even between neighboring properties, since local soil and construction details play a large role.
The EPA recommends taking action to reduce radon levels when a test result reaches or exceeds 4.0 pCi/L, and recommends considering mitigation even below that threshold in some cases. Testing is commonly requested during a real estate transaction, but it's also worth doing simply as a homeowner, since long-term exposure to elevated radon is a recognized health concern.
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