Radon is a subject that gets discussed either with alarm or not at all, and neither is useful. It is a naturally occurring gas that comes up out of the ground, you cannot see or smell it, and the only way to know what your house is doing is to measure it. That is the entire premise, and everything practical follows from it.
These guides walk through the three things homeowners actually need. How testing works and why short-term and long-term tests answer different questions. What a mitigation system is in plain terms, which is a pipe, a fan, and a vent above the roofline. And how radon shows up during a home sale, where the timing rules catch people out.
We do not quote thresholds here on purpose. The EPA publishes an action level and the Utah Department of Environmental Quality publishes state guidance and maps, and those are the sources worth reading, because they are current and we are not.
Radon is produced in soil and rock and moves naturally upward through the ground. A house sitting on that ground is, in air pressure terms, slightly hungry: warm air rises…
Read the guide →Soil gas enters a house because the space under the floor is at a slightly higher pressure than the space above it, so gas moves upward through whatever openings exist. A…
Read the guide →Testing as a homeowner is leisurely. You place a device, you keep the house closed, you read the result whenever it comes and you decide at your own pace. Testing during a…
Read the guide →Radon is unusual among home issues in that the measurement is inexpensive, the remedy is well understood, and the result can be confirmed afterward. That combination is rare. It also means the honest advice is short: test the house, read the result against the guidance the EPA and Utah's DEQ publish, and if it points toward mitigation, get a system installed and re-tested. There is no reason for this subject to carry more anxiety than that, and no reason to make a decision without the number.
If you are weighing whether to bother, note that testing is the cheap part and it is the only step that produces information. Everything after it is a decision you get to make with a number in hand instead of a worry in your head.
County, foundation type, and whether a deadline is involved is enough to start.