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Find Radon gas testers in Wilmington

Avatar for Johnson Properties and Inspections, Ltd.
Johnson Properties and Inspections, Ltd.
4.7(
33
)

Serving Wilmington, NC and surrounding areas

Approved

In business since 2005

Free estimates

Offers commercial services

"I want to recommend Mr. Johnson, he was very kind and professional, clearly showing his knowledge. He inspected the whole house in detail and pointed out the parts that had some deficiencies explaining in details and sent me a very detailed report with suggestions."
Response time7 hrs
3 neighbors recently requested a quote
Recommended by93%of homeowners
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Avatar for Elite Home Inspections, LLC
Elite Home Inspections, LLC
5.0(
9
)

Serving Wilmington, NC and surrounding areas

Approved

In business since 2025

Free estimates

Small jobs welcome

"I am thinking about selling my home and I needed a total inspection. They were very efficient and courteous and delivered what I needed quickly. "
6 neighbors recently requested a quote
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Avatar for Environmental Testing & Research Laboratories, Inc
Environmental Testing & Research Laboratories, Inc
4.8(
347
)

Serving Wilmington, NC and surrounding areas

In business since 1995

Free estimates

Warranties offered

"<p>it was superb! they easiest, hassle free Radon test in town, with extremely proficient people -- very knowledgeable and very people-friendly! they took their time to explain things on the phone to me before I committed. the test came back within 10 days or so -- via email. which is very convenient. it was very clear as it is, but I like talking through it and get advice. they were instantly available to discuss. they gave me future tips to keep on top of all things Radon related. </p> <p>I have to say that all this comes to be after 3 months of many back and forths with 3 other companies -- none of the other companies could be bothered to schedule a time, and those who did, never showed up.. many times over. I don't know why I was so patient with them and I wish had discovered Environmental Testing & Research Laboratories much sooner.</p> <p>Really highly recommend them!</p> <br />"
Recommended by93%of homeowners
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Avatar for Spotlight Home Inspections
Spotlight Home Inspections
New to Angi

Serving Wilmington, NC and surrounding areas

Free estimates

Warranties offered

Our company prides itself on providing a thorough and detailed inspection every time. We provide an easy to read, simple but detailed report. We specialize in home inspections and radon inspections. We treat every home we inspect as if we personally planned to live there. Your safety and peace of mind when making a home purchase will be our top priority every time! Serving Pender and surrounding counties.

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Avatar for Professional Contract Services
Professional Contract Services
New to Angi

Serving Wilmington, NC and surrounding areas

In business since 1982

Free estimates

Emergency services offered

Our business is our livelihood but it is also so much more. Professional Contract Services was started to fill in a void in the current market and to make a business that people can place their trust in. Over the years we have never lost our commitment to our clients and that is what has allowed us to succeed in a very competitive industry. The employees of Professional Contract Services stand committed to our purpose and will provide the best service!

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FAQs for radon gas testing projects in Wilmington, NC

Radon is the second leading cause of lung cancer in the U.S. The gas seeps through cracks in foundations and collects in basements and other low areas. Once you breathe it in, radioactive particles lodge in lung tissue and do long-term damage. Because you can’t see or smell radon, the EPA recommends testing your home every two years—and after major renovations—to keep your family safe.

Yes—every home should be tested. The EPA advises doing it at least every two years and any time you remodel, buy, or sell. On average, one in 15 houses nationwide sits above the recommended limit, and the only way to know where yours stands is a formal test. The equipment simply measures gas levels and won’t change your indoor environment, so the process is completely harmless.

Certified radon professionals—often home inspectors or dedicated radon mitigation contractors—handle testing. These radon testing professionals follow EPA protocols and use calibrated instruments to check levels throughout your house. Hiring a certified radon specialist means results you can trust for real estate deals, insurance requirements, and, most importantly, your family’s health.

Inspectors specialize in measuring radon gas levels, while licensed mitigation contractors design and install the systems that remove it. If your test comes back high, your inspector can point you to a qualified mitigation pro who will size and install the right fan, piping, or other equipment to bring levels down.

No—standard home air purifiers don’t touch radon. They’re built to trap dust and pollen, not radioactive gas. If testing shows high levels, you’ll need a dedicated mitigation system that vents the gas from beneath your home to the outdoors. Relying on a room purifier alone won’t keep your indoor air safe.

Opening a few windows in your home might dilute radon for a short time, but the gas seeps back in as soon as they’re closed. For a lasting fix, you’ll need a professional mitigation system—often a sub-slab depressurization fan—that pulls radon from beneath the foundation and safely vents it outside.

The Wilmington, NC homeowners’ guide to radon gas testings

From average costs to expert advice, get all the answers you need to get your job done.

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