Radon Measurement
EPA-protocol radon measurement - because the only way to know your home's radon level is to test.
Radon is a naturally occurring radioactive gas produced by the breakdown of uranium in soil, and it is the second leading cause of lung cancer in the United States after smoking. You cannot see it, smell it, or taste it - the only way to know whether a home has a radon problem is to measure it. John Atkinson is licensed for radon measurement in both Ohio and West Virginia and follows EPA measurement protocols on every test. Preferred Inspections provides radon measurement throughout Ohio and West Virginia in the Tri-State Area, with clearly written results and guidance you can act on if levels reach the EPA action threshold. For a contaminant this serious and this invisible, professional measurement is the foundation of absolute peace of mind.

What's included
EPA-protocol measurement
Measurements follow EPA protocols, including proper device placement in the lowest livable level of the home and verification of closed-house conditions.
Continuous monitoring
Professional continuous radon monitors record concentration over the test period, providing reliable data rather than a single average from a passive kit.
Clear written results
You receive a written report with your radon concentration, an explanation of what it means relative to the EPA action level, and guidance on next steps.
Mitigation guidance
If your level reaches or exceeds the EPA action level of 4.0 pCi/L, John explains how mitigation works and what to expect from a qualified mitigation professional.
Why it matters
- •John is licensed for radon measurement in both Ohio and West Virginia and follows EPA measurement protocols on every test.
- •Radon does not depend on a home's age or construction type - the soil beneath the house is what matters, which is why testing is the only reliable answer.
- •Radon measurement is commonly added to a home inspection so results are available within the inspection contingency window.
- •Closed-house conditions and proper device placement are verified so results accurately reflect the home.
How it works
- 1
Add to your inspection
Radon measurement is usually added to a home inspection booking; device placement takes only a few minutes.
- 2
Closed-house test period
The home is kept in closed-house conditions for the duration of the test so the measurement accurately reflects normal living conditions.
- 3
Results & guidance
John retrieves the monitor, reviews the data, and delivers a written report. If mitigation is warranted, he explains your options.
Frequently asked
What is an unsafe radon level?
The EPA recommends mitigation at 4.0 pCi/L or higher and suggests considering it between 2.0 and 4.0 pCi/L. There is no completely safe level - lower is always better.
Can radon measurement be part of my inspection contingency?
Yes. Most purchase agreements allow radon measurement within the inspection contingency window, giving you time to address elevated levels before closing.
How does measurement work?
John places a continuous radon monitor in the lowest livable level of the home under verified closed-house conditions, then retrieves it and reports the results.
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