Analysis
When and Why You Need a Radon Retest for Your St. Louis Home
Understanding the Need for a Radon Retest Radon gas is a silent, odorless threat that can seep into homes from the surrounding soil. In St. Louis, where soil geology can vary from rocky bluffs to clay-filled plains, the risk of elevated radon levels is real. Many homeowners test for radon once when they buy a house, then forget about it. But that single test is just a snapshot. Radon levels change with the seasons, home renovations, and even how often you run your HVAC sys
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