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Radon Testing Guilford County, NC

Know Your Home Is Safe

Radon is invisible, odorless, and the second leading cause of lung cancer in the United States. Professional radon testing gives you accurate measurements and clear answers about your indoor air quality.
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Professional-Grade Testing Equipment

We use calibrated, sophisticated devices that deliver accurate readings you can trust for your family's safety and real estate transactions.

Over 30 Years Local

We've served Guilford County homes for decades and understand the unique indoor air quality challenges specific to this area.

Clear Result Interpretation

You get more than numbers. We explain what your results mean, whether action is needed, and what your options are.

Indoor Air Quality Experts

Radon testing is a natural extension of our comprehensive indoor air quality services, giving you one trusted partner for healthier air.

Professional Radon Testing Services

Testing You Can Actually Trust

You can’t see radon. You can’t smell it. And you definitely can’t tell if it’s in your home without proper testing. That’s the problem with an invisible threat. DIY test kits might seem like an easy solution, but they only give you a snapshot, and accuracy depends entirely on whether you followed every instruction perfectly. Professional radon testing uses equipment that’s designed for precision, placed correctly, and interpreted by someone who understands what the numbers actually mean for your home and your family. If you’re buying or selling a home, professional results also satisfy real estate contingencies and disclosure requirements. This isn’t just about getting a number. It’s about knowing whether your family is safe.

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Benefits of Professional Radon Testing

What You Get From Testing

Professional radon testing gives you accurate data, expert guidance, and the confidence that comes from knowing exactly what’s in your home’s air.
  • You'll know for certain whether radon levels in your home require action, instead of wondering if a DIY kit gave you the right answer.
  • Your family gets protection from the second leading cause of lung cancer, especially important if you have children or anyone who spends significant time at home.
  • You'll have professional results that meet real estate transaction requirements if you're buying or selling your home.
  • You get clear explanations of what your radon levels mean and whether mitigation is recommended based on EPA guidelines.
  • You can move forward with confidence, whether that means peace of mind or taking action to reduce elevated levels.
  • You're working with a company that already understands your home's indoor air quality, not a stranger who only shows up once.

Why Professional Testing Matters

DIY Kits Miss What Matters

DIY radon test kits are inexpensive and available at most hardware stores. They’re also inconsistent. The accuracy depends on proper placement, closed-house conditions, correct timing, and whether you followed the instructions exactly. Most kits only measure for 48 hours to a week, which means you’re getting a snapshot of radon levels during that specific window. Radon levels fluctuate based on weather, season, soil moisture, and how your home is being used. A short-term reading might miss higher levels that occur at other times.

Professional testing uses continuous monitoring equipment that tracks radon levels throughout the entire testing period. The devices are calibrated regularly, placed in the correct locations by someone trained to do this work, and they provide data that shows fluctuations rather than a single average. You also get someone who can explain what the results mean for your specific situation. If you’re in the middle of a real estate transaction, professional testing provides the documentation and credibility that buyers, sellers, and lenders expect. And if your results come back elevated, you’re already working with someone who can guide you toward the next steps instead of figuring it out on your own.

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Understanding Radon Gas Levels

What Your Results Actually Mean

Radon is measured in picocuries per liter of air. The EPA recommends taking action if levels are 4.0 pCi/L or higher, and considering mitigation for levels between 2.0 and 4.0 pCi/L. There’s no completely safe level of radon, but these guidelines help homeowners understand when the risk becomes significant enough to address.

Here’s what you need to know: radon is a radioactive gas that forms naturally when uranium in soil, rock, and water breaks down. It seeps into homes through cracks in foundations, gaps around pipes, crawl spaces, and any opening that connects your home to the ground. Because it’s heavier than air, it tends to accumulate in basements and lower levels. Every home in Guilford County can have radon, regardless of age, construction type, or neighborhood. The only way to know your levels is through testing. If your results show elevated levels, radon mitigation systems are highly effective at reducing concentrations, often bringing levels down to 2.0 pCi/L or lower. The system typically involves a vent pipe and fan that draws radon from beneath your home and releases it safely outside. Professional testing gives you the information you need to make informed decisions about your home and your family’s health.

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Radon Testing FAQs

Common Questions About Our Service

Professional radon testing uses continuous monitoring equipment that’s calibrated regularly and placed correctly by trained technicians. DIY kits can work, but their accuracy depends entirely on whether you followed every instruction perfectly, placed the kit in the right spot, maintained closed-house conditions, and didn’t disturb the test. DIY kits also typically only measure for a short period, giving you a snapshot rather than a comprehensive picture. Professional testing provides more reliable data because the equipment is more sophisticated, the placement is done by someone who knows what they’re doing, and you get expert interpretation of the results. For real estate transactions, professional testing also provides the documentation and credibility that buyers, sellers, and lenders expect. If you want to know for certain what your radon levels are, professional testing removes the guesswork.
Most professional radon tests run for a minimum of 48 hours, though longer testing periods provide more accurate averages of your home’s radon levels. Short-term tests are common for real estate transactions when time is limited. Long-term tests, which run for 90 days or more, give you a better understanding of how radon levels fluctuate throughout different seasons and conditions. The testing period depends on your situation. If you’re buying or selling a home and need results quickly, a short-term test works. If you’re testing for your own peace of mind and want the most comprehensive data, a longer test is better. During the test, you’ll need to keep windows and doors closed as much as possible, maintain normal heating and cooling, and avoid anything that would significantly change your home’s air pressure. We’ll walk you through exactly what to do.
The EPA recommends taking action to reduce radon if your test results are 4.0 pCi/L or higher. They also suggest considering mitigation for levels between 2.0 and 4.0 pCi/L. There’s no completely safe level of radon because it’s a radioactive gas that causes lung cancer, but these guidelines help homeowners understand when the risk becomes significant. For context, the average outdoor radon level is about 0.4 pCi/L, and the average indoor level in U.S. homes is around 1.3 pCi/L. If your levels come back at 4.0 pCi/L or higher, radon mitigation systems are highly effective at reducing concentrations. Most systems bring levels down to 2.0 pCi/L or lower. The system typically involves a vent pipe and fan that draws radon from beneath your home and releases it safely above the roofline. If you’re in a real estate transaction, buyers often negotiate for the seller to install a mitigation system before closing. The important thing is that elevated radon is fixable, and testing is the only way to know whether you need to take action.
Yes. Radon can be present in any home regardless of age, construction type, foundation, or neighborhood. Guilford County has documented radon potential, and North Carolina as a whole has significant radon presence, with 77 of the state’s 100 counties showing indoor air levels above the EPA action level in at least some homes. The EPA recommends testing all homes, and North Carolina health officials recommend testing every two years or at least every five years if you have a mitigation system installed. Radon levels can change over time due to settling, foundation cracks, changes in soil moisture, and other factors. Even if your neighbor’s home tested low, your home could have elevated levels. The only way to know is through testing. This is especially important if you have a basement or spend significant time in lower levels of your home, since radon is heavier than air and tends to accumulate in those areas. Testing is also critical during real estate transactions, as buyers typically request it as part of the home inspection process.
Yes, and it’s actually one of the most common times homeowners test for radon. The EPA recommends testing all homes during real estate transactions, and buyers typically request radon testing as part of the overall home inspection. Professional testing is especially important in these situations because the results need to meet disclosure requirements and satisfy buyer contingencies. Most real estate radon tests are short-term tests that run for 48 hours to a week, which fits within the typical inspection period timeline. If results come back at 4.0 pCi/L or higher, buyers usually negotiate with sellers to have a mitigation system installed before closing, or they request a credit to cover the cost. Sellers can also test their homes before listing to address any issues proactively and avoid surprises during negotiations. Professional testing provides the documentation, credibility, and expert interpretation that all parties in a real estate transaction expect. If you’re buying or selling a home in Guilford County, radon testing should be part of your checklist.
If your test results show radon levels at 4.0 pCi/L or higher, the next step is radon mitigation. This sounds more complicated than it is. A radon mitigation system typically involves installing a vent pipe and fan that draws radon gas from beneath your home and releases it safely outside above the roofline. The system runs continuously and is very effective at reducing radon levels, often bringing concentrations down to 2.0 pCi/L or lower. Installation usually takes one day for most homes, and the cost is comparable to other common home repairs. After the system is installed, follow-up testing confirms that radon levels have been reduced to safe levels. If you’re in the middle of a real estate transaction, buyers and sellers typically negotiate who pays for the mitigation system. Many sellers choose to install the system before listing to avoid complications during the sale. The important thing to understand is that elevated radon is a solvable problem. You’re not stuck with it, and mitigation systems have a proven track record of effectiveness. Testing is the first step, and if your results come back high, we’ll walk you through what happens next.
1

Schedule Your Test

We discuss your concerns, whether you're testing for peace of mind, a real estate transaction, or follow-up after previous results.

2

Professional Placement and Monitoring

We place calibrated testing equipment in the correct location and monitor radon levels over the appropriate timeframe for accurate results.

3

Results and Recommendations

You receive clear results with expert interpretation, including whether action is needed and what your options are moving forward.