What New Homeowners and Buyers Need to Know About Radon
Why Radon Testing and Monitoring Should Be Part of Every Homebuyer’s Checklist
Buying a new home is an exciting milestone, but protecting your family's health should be just as important as choosing the perfect neighborhood. One hidden risk many buyers overlook is radon gas, a naturally occurring radioactive gas that has no color, smell, or taste. Because you can't detect it without testing, it can quietly accumulate inside your home without warning.
The good news? Radon is easy to detect and, if necessary, easy to fix. With today's smart radon monitors, homeowners can receive fast, real-time readings and continuously monitor their home's air quality, providing them with peace of mind from the start.
Quick Answer
Should you test for radon before buying a home?
Yes. Radon testing should be part of every home inspection. If elevated levels are found, they can usually be reduced with a radon mitigation system before or shortly after you move in.
Key Takeaways
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Radon is the leading cause of lung cancer among non-smokers.
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Every home should be tested, regardless of age or location.
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Request a radon test during your home inspection.
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Continuous monitoring provides better protection than a one-time test.
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High radon levels can usually be fixed with a mitigation system.
What Is Radon Gas and Why Is It Dangerous?
Radon is a naturally occurring radioactive gas produced by the breakdown of uranium in soil, rock, and water. It enters homes through foundation cracks, crawl spaces, sump pits, construction joints, and other small openings. Because it is invisible, odorless, and tasteless, homeowners often don't realize they're being exposed.
Over time, radon can accumulate to dangerous levels, particularly in basements, crawl spaces, and tightly sealed homes.
Why Radon Exposure Is a Serious Health Risk
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Radon exposure is a leading cause of lung cancer among non-smokers and contributes to more than 21,000 lung cancer deaths every year in the United States.
People at greater risk include:
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Non-smokers
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Smokers, whose lung cancer risk increases significantly when exposed to radon
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Children and families who spend more time indoors
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Anyone living in a home with elevated radon levels
The EPA recommends taking action when indoor radon levels reach 4.0 pCi/L or higher.
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Do I Need a Radon Test During a Home Inspection?
Absolutely. Requesting a radon test during your home inspection is essential because radon testing isn't always included in a standard home inspection unless you specifically request it.
Testing before closing helps identify potential health risks early and gives you time to negotiate with the seller if elevated radon levels are found.
Benefits of Testing Before Closing
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Identify potential health risks early.
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Negotiate mitigation costs with the seller.
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Avoid unexpected expenses after moving in.
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Move into your new home with confidence.
| 💡Pro Tip: If you're buying a home with an unfinished basement and plan to remodel it into a living space, test for radon before renovations begin. Installing a radon mitigation system before drywall, flooring, and finishes are added is typically easier and more cost-effective. Once the system is installed, continue monitoring radon levels to ensure they remain low and the system continues working effectively. |
See how one of our partner home inspectors helped a buyer identify high radon levels in an unfinished basement before renovation began: 👉 Watch the video on Instagram
How Do I Know If My New Home Has Radon?
The only way to know your home's radon level is to test. You can't predict radon based on a home's age, design, or location alone, but these factors may increase the likelihood of elevated radon levels:
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Foundation type: Homes with basements or crawl spaces
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Home age: Older homes may have more cracks, while newer homes may be tightly sealed, trapping radon indoors.
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Geographic area: Regions with granite bedrock or uranium-rich soil often have higher radon potential.
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Season and weather: Radon levels generally rise during colder months because reduced ventilation and pressure differences draw more radon into the home.
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💡 Did You Know? Two neighboring homes can have completely different radon levels, even if they were built at the same time. That's why every home should be tested individually rather than relying on nearby test results. |
Why Continuous Radon Monitoring Matters
Most home inspections rely on short-term radon tests that last only 48–72 hours. While these tests are useful during the home-buying process, they provide only a snapshot of your home's radon level.
Radon levels naturally fluctuate due to weather, rainfall, ventilation, HVAC usage, and seasonal pressure changes. A short-term test may miss these changes, while continuous monitoring provides a more accurate picture of your long-term exposure and helps verify that your home remains safe over time.
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Test Method |
Results |
Long-Term Monitoring |
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Charcoal Test Kit |
2–7 Days |
❌ |
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Professional Short-Term Test |
48–72 Hours |
❌ |
|
Smart Radon Monitor |
Minutes |
✅ |
By continuously monitoring your home's radon levels, you can detect seasonal spikes, verify that a mitigation system is working properly, and make informed decisions about your family's indoor air quality.
How to Test for Radon in Your Home (Stress-Free)
Radon testing during a home inspection is typically limited to 48 to 72 hours, making fast and reliable results essential. Smart radon monitors like EcoQube Flex and EcoQube provide real-time readings within minutes, giving buyers valuable insights during this short testing window.
However, because radon levels fluctuate daily and seasonally, a short-term test doesn't always tell the full story. Health Canada recommends testing your home for at least 91 days, ideally during the heating season, to determine an accurate long-term average. That's why continuing to monitor your home's radon levels after moving in is one of the best ways to protect your family's health.
Here’s how our monitors help:
EcoBlu
EcoBlu is ideal for homeowners who want a simple, accurate radon detector without additional setup or app connectivity. Its ease of use has also made it a popular choice for public library radon lending programs.
Key Features
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First radon reading in just 10 minutes
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Reaches 90% accuracy within 10 hours
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Displays daily, weekly, monthly, and long-term averages
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Easy plug-and-play setup
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No mobile app required
EcoQube
EcoQube is a C-NRPP-approved, award-winning smart radon monitor that connects to your Wi-Fi network and continuously tracks radon levels through the EcoQube mobile app.
Key Features
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Real-time radon monitoring
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Wi-Fi connectivity
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Instant alerts
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Unlimited cloud history
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Personalized recommendations and trend analysis
EcoQube Flex
EcoQube Flex is a compact, battery-powered, professional-grade smart radon monitor designed for flexible room-by-room testing throughout the home. It provides accurate, real-time radon readings while displaying the current, highest, and lowest radon levels directly on the device, with additional historical data available in the Ecosense app via Bluetooth. Its cordless design enables easy placement anywhere in the home, helping homeowners continuously monitor radon wherever it matters most.
Key Features:
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Real-time radon monitoring
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Compact and flexible design
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Bluetooth connectivity with mobile app access
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Instant alerts and historical data tracking
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Ideal for homes, rentals
RadonEye
RadonEye, listed among C-NRPP-approved consumer radon monitors, connects via Bluetooth to provide real-time readings and historical charts through its mobile app. Users can also view current radon levels directly on the device's display.
As Ecosense's first-generation monitor, RadonEye continues to be trusted by thousands of homeowners for reliable radon detection.
What to Do If Radon Levels Are High in Your Home
Finding elevated radon levels may sound alarming, but the good news is that radon is both detectable and fixable.
1. Confirm the Reading
Radon levels naturally fluctuate due to weather, ventilation, and seasonal changes. Instead of relying on a single reading, use a continuous radon monitor to understand your home's long-term exposure.
2. Install a Radon Mitigation System
If elevated levels are confirmed, contact a certified radon mitigation professional. Most mitigation systems are installed within a day and can significantly reduce indoor radon levels.
3. Negotiate During Home Buying
If you're still purchasing the home, discuss mitigation options with the seller. High radon levels don't have to be a dealbreaker if they're addressed before closing.
4. Continue Monitoring
Even after mitigation, continue monitoring your home's radon levels to ensure the system continues working effectively throughout the year.
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💡 Pro Tip: Seasonal weather, ventilation, and home improvements can affect indoor radon levels. Continuous monitoring provides peace of mind and helps confirm your mitigation system is performing as expected. |
Is It Safe to Buy a Home With Radon?
Yes, if you address the issue properly. High radon levels don’t mean you should walk away from a home, but they do mean you need to act.
Radon mitigation and continuous monitoring are straightforward and effective. Just make sure the issue is addressed before moving in or shortly after. Peace of mind comes from knowing, not guessing, that your home is safe.
Home Buyer's Radon Safety Checklist
Before moving into your new home, make sure you:
✔ Request a radon test during the home inspection.
✔ Review the test results before closing.
✔ Negotiate mitigation if elevated levels are found.
✔ Install a radon mitigation system if needed.
✔ Continue monitoring your home's radon levels throughout the year.
Final Thoughts: Make Radon Testing Part of Your Home Safety Plan
Whether you're buying, selling, or settling into a new home, radon testing should be an essential part of your home safety plan. The only way to know if your family is being exposed is to test, and the best way to stay protected is through continuous monitoring.
With Ecosense smart radon monitors, including EcoBlu, EcoQube, and RadonEye, you can access fast, accurate, real-time radon data without waiting days for lab results. Whether you're checking your home's radon levels before closing or monitoring year-round after moving in, Ecosense helps you make informed decisions with confidence.
Protect your home, protect your family, and start monitoring today.
Frequently Asked Questions
What is a safe radon level?
The EPA recommends taking action if indoor radon levels reach 4.0 pCi/L or higher. Even lower levels carry some risk, so testing and continuous monitoring can help you understand your home's long-term radon exposure.
Can new homes have radon?
Yes. Both new and older homes can have elevated radon levels. New homes may even trap more radon because they are tightly sealed for energy efficiency, making testing important regardless of a home's age.
Should I buy a house with radon?
Yes. High radon levels don't have to be a dealbreaker. Most homes can be made safe with a professionally installed radon mitigation system, and buyers can often negotiate repairs or credits before closing.
How long should I test for radon?
Short-term tests are useful during a home inspection, but long-term testing provides a more accurate average radon level. Continuous monitoring helps track daily and seasonal changes for ongoing peace of mind.
Does radon go away on its own?
No. Radon levels can rise or fall with weather and ventilation, but they won't permanently disappear without mitigation. Installing a mitigation system and monitoring regularly helps keep your home safe.
The article makes radon testing easy to understand and highlights why it’s such an important part of creating a safe home environment.
It explains radon testing in a simple, practical way and reminds readers that it’s something worth checking early, even if a home seems new or safe. Thanks for sharing!
This is exactly the kind of guidance new homebuyers need to understand radon risks and testing options.
Great info for new homeowners and buyers—radon is a naturally occurring gas that can accumulate in any home, regardless of age or location. It’s crucial to test for radon during the buying process and negotiate mitigation if levels are high. Knowing the risks and testing early can protect your health and give you peace of mind.
Great topic! New homeowners and buyers should know radon is a colorless, odorless gas that can seep into homes and pose health risks. Testing is easy and important, and if levels are high, mitigation systems can make your home safer. Always include radon checks in your inspection!