Radon is a radioactive gas that seeps into homes from the soil. You can’t see, smell, or taste it—but long-term exposure is the second leading cause of lung cancer in the U.S., just behind smoking.

How it enters:

• Cracks in the foundation or slab
• Crawlspaces or sump pits
• Gaps around pipes or drains

Why it’s serious:

Radon breaks down into radioactive particles that, when inhaled, can damage lung tissue over time. This makes long-term testing and mitigation especially important—even in homes with no visible signs of issues.