If you're in the process of buying a home—especially here in Montana—you’ve likely come across the topic of radon testing. It’s often brought up during inspections, and you may have heard that “you should always test and mitigate.” But is it really that straightforward?

Let’s take a neutral, fact-based look at what radon is, when it matters, and why some buyers choose to test and mitigate—while others don’t.

What Is Radon?

Radon is a colorless, odorless, and tasteless gas that forms naturally when uranium in soil and rock breaks down. It can enter homes through foundation cracks, gaps in floors, or around plumbing.

The EPA has identified radon as the second leading cause of lung cancer in the U.S., especially among smokers. But here’s the thing: the level of risk depends on multiple factors—like how high the radon levels are, how long you're exposed, and whether you spend time in areas of the home where radon accumulates.

Why Buyers Choose to Test for Radon

• Health Peace of Mind:
  The EPA recommends taking action if radon levels are above 4.0 picocuries per liter (pCi/L). A test gives you real data to work with.

• Affordable and Easy Testing:
  Radon testing is usually around $100–$200 and can be bundled into your standard home inspection.

• Montana’s High Radon Potential:
  Montana is one of the states with naturally higher radon levels due to its geology. Even if the house next door tested low, your potential new home might be different.

• Resale Value and Marketability:
  Having a radon mitigation system in place—or simply documented test results—can help smooth out the process when it’s time to sell.

Why Some Buyers Don’t Test or Mitigate

• Not All Homes Have High Levels:
  Many homes test well below the EPA’s action level. If the home you’re buying tests at 1.5 or 2.0 pCi/L, some buyers feel comfortable moving forward without mitigation.

• Risk Can Be Relative:
  Studies that link radon to lung cancer often focus on high exposures in mining or industrial settings. For non-smokers living in homes with moderate radon levels, the risk is significantly lower.

• Lifestyle Considerations:
  If you don’t plan to spend much time in the basement—where radon tends to collect—you might not feel mitigation is necessary right away.

• Budget and Timing:
  Mitigation systems typically cost $1,000–$2,500. Some buyers prefer to weigh that expense against other priorities, especially if test results come back on the lower side.

So… Should You Test?

Testing gives you knowledge—and knowledge is power. It doesn’t mean you have to mitigate, but it gives you a clear understanding of any potential risk so you can make the choice that feels right for you.

If you’re buying in Montana, especially around areas like Helena or other mountainous regions, it’s a smart idea to at least consider testing. It's a relatively small investment in the bigger picture of homeownership.

Additional Resources

• EPA Radon Guide

• Montana DEQ Radon Program

• American Lung Association – Radon Info

Still have questions about radon or other home inspection items?
Let’s chat! I’m here to help you navigate every part of the buying process with confidence—from radon reports to closing day.