Testing That Measures What Eyes Cannot

A standard home inspection documents what a licensed inspector can see, access, and evaluate—but radon is invisible, odorless, and entirely absent from a visual walkthrough. Apex Home 360 provides radon testing in Palmyra for buyers and homeowners who need an accurate measurement of what is present in the air inside the home, not an assumption based on what the structure looks like. Homes built on rural lots throughout Fluvanna County and in older sections of Central Virginia housing stock frequently show radon concerns that go undetected until specific testing is performed.

The test is set up in the lowest livable area of the home—typically a finished basement, lower-level bedroom, or the lowest floor where someone spends time regularly—and left in place for the required testing period. Placement in the lowest livable space matters because radon concentrations are highest where the gas enters through foundation cracks, slab penetrations, and soil contact points before it disperses upward through the home. Once the testing period ends, the device is collected and read to produce a concentration measurement.

Schedule a radon test as part of your home evaluation to get a documented measurement before closing or before occupancy.

Radon enters structures through any point where the building contacts the ground—foundation cracks, utility penetrations, sump pits, and the soil beneath crawlspaces or slabs. In Palmyra and the surrounding rural areas of Fluvanna County, many homes sit on unfinished crawlspaces or older poured foundations without modern radon-barrier systems, which are the conditions where gas entry is most common. Placing the test device correctly, in the lowest livable area rather than the basement utility room or a rarely used storage space, is what produces a measurement that reflects actual human exposure levels.

The result of the test is a concentration number, expressed in picocuries per liter. That number tells you whether the home is below the EPA action level, near it, or above it—each of those ranges points toward a different next step. A home below the action level requires no immediate response; a home above it indicates that a mitigation system should be evaluated. The test result itself is the decision point, and you cannot make that decision accurately without a measurement from inside the home.

Closed-house conditions are required for the duration of the testing period—windows and exterior doors are kept closed except for normal entry and exit. Disrupting those conditions during the test period affects the accuracy of the reading, so coordinating test timing with occupant schedules and any planned contractor activity in the home is part of setting the test up correctly.