Radon is a naturally occurring, radioactive gas that forms when uranium in soil, rock, and water breaks down. It’s colorless, odorless, and tasteless, so you won’t know it’s there without a test. Outdoors it disperses harmlessly, but inside homes and buildings it can seep through cracks in slabs and foundations, gaps around pipes, crawl spaces, and sump pits, accumulating to unhealthy levels—especially in basements and lower levels.

Radon matters because long-term exposure increases the risk of lung cancer. In the U.S., it’s considered the second leading cause of lung cancer overall and the leading cause among non-smokers. Smoking plus radon exposure multiplies the risk. Levels are measured in picocuries per liter (pCi/L); the EPA recommends taking action at 4.0 pCi/L or higher, and many health agencies advise reducing levels as low as reasonably achievable because there’s no known “safe” exposure.

RADN helps by making the invisible visible. We provide accurate short-term and long-term testing to pinpoint your radon level, then design mitigation systems—most commonly sub-slab depressurization—that vent radon safely outside and keep levels down year-round. With proper system design, sealing, and follow-up monitoring, we protect the air you and your loved ones breathe.