What is radon and why should I test for it in Bloomington, MN?
Minnesota geology and our cold climate drive radon indoors. During winter, heated homes pull air upward and draw soil gas in through the foundation, a stack effect that raises wintertime radon readings. This is why many Bloomington homes test higher in colder months.
Testing is simple and non-invasive. A short-term test placed in the lowest livable level for a set period gives a reliable snapshot, and conditions like closed windows are maintained during the test for accuracy. Your inspector can place and retrieve the device as part of the transaction timeline.
If results come back elevated, a radon mitigation system, typically a sealed sub-slab suction pipe and fan that vents gas above the roofline, lowers levels effectively. Knowing the radon level before closing lets you negotiate who pays for mitigation.
