Radon often comes up during home sales and inspections, but many people still don’t fully understand what it is—or how it affects a property. Because radon is invisible and odorless, it’s easy for misinformation to spread. Some homeowners assume it’s nothing to worry about, while others panic when they hear about elevated levels. The truth lies somewhere in between: radon is a real concern, but it’s also completely manageable when handled properly.

Let’s clear up some of the most common myths about radon in real estate and explain what every homeowner, buyer, and seller should know.

Myth 1: Radon Is Just a Scare Tactic

Some believe that radon testing is simply another way for inspectors or contractors to make money. In fact, radon is a naturally occurring radioactive gas that seeps up from the soil. According to the Environmental Protection Agency (EPA), prolonged exposure to high radon levels is responsible for thousands of lung cancer deaths each year. The science is clear: radon is a legitimate health risk, not a marketing gimmick.

Myth 2: You Can Tell If a Home Has Radon

Unfortunately, you can’t detect radon by sight, smell, or taste. The only reliable way to know if a home has elevated radon levels is to test for it. Without testing, even homes with dangerously high concentrations can go unnoticed for years. This makes radon testing an essential part of any home inspection or sale.

Myth 3: Radon Problems Only Exist in Certain States

While some states have higher average radon levels, the gas can be found anywhere. Geological formations, soil permeability, and home construction all influence radon concentration. Even two neighboring homes can have dramatically different readings. Every home, regardless of location, should be tested at least once—especially before buying or selling.

Myth 4: New Homes Don’t Need Radon Tests

Newly built homes aren’t automatically safe from radon. In fact, many modern houses are designed to be energy efficient and airtight, which can trap radon indoors. Builders can add radon-resistant features, but that doesn’t guarantee low levels. Whether your home is new, remodeled, or decades old, testing remains the only way to be certain it’s safe.

Myth 5: Fixing Radon Is Complicated and Expensive

Many homeowners hesitate to deal with radon because they fear costly or disruptive repairs. In reality, most mitigation systems are straightforward and affordable. These systems typically use a vent pipe and fan to draw radon from beneath the foundation and release it harmlessly outdoors. Installation usually takes less than a day, and once in place, the system can last for years with minimal maintenance.

Myth 6: If a Neighbor’s Test Is Low, Yours Will Be Too

Radon levels can vary dramatically between neighboring homes due to differences in soil composition, foundation cracks, and ventilation. A low reading next door doesn’t guarantee safety in your home. Each house needs its own test—especially when it’s changing ownership or undergoing renovations that could alter airflow patterns.

Myth 7: A Short-Term Test Tells the Whole Story

Short-term radon tests, which last just a few days, are useful for quick checks but don’t provide the complete picture. Radon levels fluctuate with the seasons, weather, and home ventilation. For the most accurate assessment, long-term testing—lasting 90 days or more—is recommended. If a short-term test shows high levels, a follow-up test or immediate mitigation may be appropriate.

Myth 8: Radon Only Affects Homes With Basements

It’s true that basements often have higher radon levels since they’re below ground. However, radon can enter through any point where a building contacts the soil. Homes with crawl spaces or slab foundations are just as vulnerable. Even multi-story homes can have elevated levels on the main floor or above.

Myth 9: A Home With High Radon Can’t Be Sold

High radon levels don’t have to derail a sale. In fact, handling the issue correctly can strengthen buyer confidence. If a home has already been mitigated, it demonstrates that the seller has taken proactive steps to ensure safety. Mitigation systems are recognized and accepted solutions that often make a property more marketable, not less.

Myth 10: If You’ve Lived There for Years, It’s Too Late to Do Anything

It’s never too late to address radon. Reducing exposure today can still lower health risks for you and your family. Even if you’ve lived in your home for decades, installing a mitigation system can immediately improve indoor air quality and provide long-term peace of mind.

Understanding Radon Builds Trust in Real Estate

Whether you’re buying, selling, or simply maintaining your home, being informed about radon is key. Testing is easy, mitigation is effective, and the results can protect both your health and your investment. Addressing radon early also prevents last-minute surprises during a real estate transaction, helping the process move smoothly for everyone involved.

Protect Your Home With Radon Delete

If your property tests positive for elevated radon levels, Radon Delete can help. Their certified specialists provide accurate radon testing, system design, and full-service mitigation to ensure your home meets recommended safety levels. Whether you’re preparing to sell your home or just want to make sure your air is safe, Radon Delete delivers dependable, cost-effective solutions that keep families protected and properties market-ready.