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When Your Radon Alarm Goes Off: Understanding What Comes Next
@radonalarmpro · 10 October 2026
If you own a home in St. Louis and have a radon mitigation system already in place, you probably know the quiet hum of the radon fan running in the basement or crawl space. That sound, paired with the reading on a continuous radon monitor or a simple radon test kit, gives you peace of mind. But what happens when that reading spikes, or an actual radon alarm sounds? It can be unsettling. The good news is that a sudden change in radon levels usually points to something specifi
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