If you’ve never thought about a radon test before, you’re not alone. Many homeowners don’t realize that radon—a colorless, odorless gas—can quietlybuild up in homes without any visible signs. It seeps into buildings from the soil through cracks in the foundation, sump pumps, and even well water. According to the EPA, radon is the second leading cause of lung cancer in the United States, responsible for roughly 21,000 deaths each year. That’s a serious reason to make testing part of your home’s safety routine.
Where Does Radon Come From, and Why Is It a Bigger Problem in Winter?
Radon forms naturally as uranium in soil and rock breaks down over time. Every home, regardless of age or location, has some level of radon—but the concentration depends on ventilation and soil conditions. During colder months, homes are sealed tighter to keep warm air in, and that traps radon indoors. So winter is actually one of the best times to test. The Illinois Emergency Management Agency even recommends winter testing for the most accurate readings.
How Does Radon Affect Health—and What Can You Do About It?
Radon exposure doesn’t cause immediate symptoms, which is why it’s often called a “silent threat.” Over time, inhaling radon particles damages lung tissue and increases cancer risk—even for nonsmokers. The good news is that mitigation is straightforward. A licensed radon professional can install a venting system that safely directs the gas outdoors. Once installed, ongoing monitoring ensures levels remain safe.