Have you ever stopped to wonder if the air in your home is truly safe to breathe? Most of us worry about outdoor pollution, allergens, and even mold inside our homes. But there’s a silent threat that’s often overlooked—radon gas. It’s invisible, odorless, and can be deadly. The worst part? You might be breathing it in every single day without even knowing it.
In this comprehensive guide, we’ll break down why radon testing is absolutely essential for every homeowner. Whether you’re buying a new house, have lived in your current one for years, or are just now hearing the term “radon,” this is one article you can’t afford to skip.
What Exactly Is Radon?
Radon is a naturally occurring radioactive gas that forms when uranium in soil and rock breaks down. It can seep into homes through cracks in the foundation, gaps in walls, and even through well water.
Because it's colorless, odorless, and tasteless, radon is practically undetectable without specialized testing. And that makes it incredibly dangerous.
Why Should You Worry About Radon?
Here’s the shocking truth: Radon is the second leading cause of lung cancer in the United States, right after smoking. The EPA estimates that radon causes about 21,000 lung cancer deaths each year. That’s more than drunk driving, home fires, or drowning.
And you don’t have to be a smoker to be at risk. In fact, non-smokers exposed to high levels of radon over long periods are still very much in danger.
How Does Radon Get Into Your Home?
Radon gas travels up through the ground and finds its way into homes through:
Cracks in concrete floors and walls
Gaps in suspended floors
Construction joints
Gaps around service pipes
Cavities inside walls
Sump pumps and floor drains
Once it’s inside, it can become trapped and build up to dangerous levels—especially in basements and crawl spaces.
No Region Is Truly Radon-Free
Many homeowners assume radon is only a concern in certain parts of the country. But the truth is, radon has been found in homes in every single U.S. state. Your next-door neighbor might have perfectly safe levels, while your own home could be dangerously high.
Even new homes built with radon-resistant construction can still have elevated levels. The only way to know for sure is to test.
The Science Behind Radon Exposure
When you breathe in radon, radioactive particles can become trapped in your lungs. Over time, these particles damage lung tissue and can eventually lead to lung cancer. It’s a cumulative effect—the longer and more intense the exposure, the greater the risk.
You won’t feel any symptoms. No headaches, no dizziness, no shortness of breath. That’s why it’s often called a “silent killer.”
The Two Types of Radon Tests
There are two main categories of radon testing available to homeowners:
1. Short-Term Testing
These tests usually last 2 to 7 days. They are ideal for getting a quick snapshot of your home’s radon levels. You can purchase DIY kits at hardware stores or online. Be sure to follow the instructions precisely to obtain accurate results.
2. Long-Term Testing
These tests measure radon levels for 90 days or more and give you a more accurate picture of year-round exposure. If you’re planning to live in your home long-term, this is the recommended approach.
Regardless of the method, what matters most is that you take action and get your home tested.
What Happens If Your Home Has High Radon Levels?
The EPA recommends action if your home’s radon level is 4.0 picocuries per liter (pCi/L) or higher. But even lower levels—between 2 and 4 pCi/L—can still pose a health risk over time.
If your test comes back high, don’t panic. Radon problems can be fixed—and usually at a cost that’s much lower than people expect.
How Radon Mitigation Works
Radon mitigation involves reducing radon levels using specialized systems. The most common method is a sub-slab depressurization system, which utilizes a vent pipe and fan to draw radon from beneath the home and release it outside, where it quickly disperses.
A professional radon mitigation contractor will evaluate your home’s foundation, layout, and airflow to install the right system. Once installed, many systems can reduce radon levels by up to 99%.
What Does Radon Testing Cost?
DIY test kits typically cost $15–$40. Professional testing ranges from $100–$300, depending on your location and the complexity of the home.
For mitigation, the cost usually falls between $800 and $2,500, depending on the system and structure of the home. That may sound steep, but compared to the cost of lung cancer treatment—or worse—it’s a no-brainer.
When Should You Test for Radon?
There’s never a bad time to test your home for radon, but here are a few key moments when it’s especially important:
When buying a new home
Before selling your home
After major renovations
Every 2 years as part of regular maintenance
And remember: homes can settle, cracks can form, and radon levels can change over time. Just because you tested once doesn’t mean you’re in the clear forever.
Radon and Real Estate Transactions
More and more homebuyers are requesting radon tests as part of the inspection process—and with good reason. In some states, radon disclosure is legally required, meaning sellers must report any known radon issues.
If you’re a seller, getting ahead of this by testing and mitigating (if necessary) can help avoid delays or price reductions during closing.
Can You Do Anything to Prevent Radon?
Yes, especially if you're building a new home. Radon-resistant construction techniques can make a big difference. These include:
Gravel and plastic sheeting under the foundation
Sealed sump pits
Special venting and piping systems
Caulking of foundation cracks
If you're renovating or finishing a basement, it’s also a great time to address potential radon entry points and consider adding a mitigation system.
The Bigger Picture: Radon and Public Health
Radon isn’t just a home issue—it’s a public health concern. Entire communities can be affected, especially in high-radon zones. Public schools, offices, and rental units should all be tested to ensure safe air quality.
The good news? Awareness is growing. More states are offering radon education programs, test kit subsidies, and mitigation grants. But change starts with individual homeowners like you.
Conclusion: Don’t Wait Until It’s Too Late
The air inside your home should be a safe space, not a hidden health hazard. Radon gas is a serious threat, but it’s also one of the most preventable.
By taking a simple test, you can protect your family, preserve your property’s value, and potentially save lives. It’s not complicated. It’s not expensive. And it’s something every homeowner should do—right now.
So ask yourself one last time: Is your air safe?
If you don’t know the answer, it’s time to find out. Visit Omaha Radon Pros to learn more and schedule your radon test today.
