Why Your New Radon System Needs an Independent Professional Test
Updated: Jun 9
Your New Radon System Is Installed. Now What?
Installing a radon mitigation system is a huge step toward protecting your family’s health. Most mitigation contractors do excellent work and take great pride in their craftsmanship.
But once the crew leaves and the radon fan starts running, one critical question remains: How do you actually know it is working?
Many homeowners unknowingly skip the most important final step: independent verification.
Often, installers leave behind a basic, mail-in DIY test kit and ask the homeowner to do the final check themselves. While state regulations technically allow homeowners to test their own properties, relying on a DIY process for something this important leaves too much room for error.
Life is Too Busy for DIY Radon Testing
Let’s be honest: modern life is incredibly hectic. Between demanding work schedules, running kids to activities, managing a household, and handling daily chaos, your hands are completely full.
To expect a busy homeowner—or an elderly resident managing their own home—to suddenly act like a certified radon expert and perfectly execute a strict scientific test is just unreasonable.
Radon testing requires absolute precision. When you throw a sensitive DIY test kit into a busy household, small mistakes happen. And those mistakes leave families at risk.
Small Mistakes Can Ruin DIY Results
Radon testing is highly sensitive to everyday life. A homeowner might easily:
Accidentally break protocol: True tests require keeping windows and doors shut. A child leaving a bedroom window open, or an elderly homeowner needing fresh air, can completely throw off the results.
Put the kit in the wrong spot: Placing a test too close to a draft, an air vent, or a humid bathroom can cause a false reading.
Get the timing wrong: If a kit is left open too long, or if you get distracted and mail it out late, the lab data becomes useless.
Even with the best intentions, these tiny mistakes can lead to an inaccurate result. In a home with a radon system, a bad test creates a false sense of security.
A Running Fan Does Not Equal Safe Air
A common myth is that if the radon fan is spinning, the house is safe.
Unfortunately, that isn't always true. A system can run perfectly, but if there is an unsealed crack behind a basement wall or an open gap in the foundation, radon gas will still find a way into your living space.
The bottom line: A running fan only proves that air is moving. It does not prove that radon levels are actually safe. Assumptions do not protect your family. Only professional testing does.
Why Independent Testing Just Makes Sense
No industry should grade its own homework. A builder doesn't inspect their own electrical work, and a radon installer shouldn't be the final judge of their own system.
An independent testing professional has zero financial interest in whether a system passes or fails. Because they don't sell or install mitigation systems, they have no reason to look the other way. Their only job is to give you the honest facts.
Independent testing does two great things:
It gives the homeowner peace of mind by taking the pressure off your schedule and providing an unbiased, professional guarantee that your air is safe.
It protects good contractors by delivering definitive, third-party proof that their craftsmanship achieved its goal.
When it comes to an invisible danger like radon, don't rely on guesswork, busy schedules, or DIY shortcuts. Let an independent professional verify your safety.
About the Author
Moises Serrano is the owner of Liberty Radon Diagnostics LLC, an independent radon measurement company serving Philadelphia and surrounding communities. Liberty Radon Diagnostics performs radon testing and diagnostics only and does not install mitigation systems, allowing for unbiased measurement results.
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