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Find Radon gas testers in Charleston

Avatar for Biotek Environmental, Inc.
Biotek Environmental, Inc.
4.7(
166
)

Serving Charleston, SC and surrounding areas

Angi Approved

In business since 2007

Free estimates

Emergency services offered

"Smooth! And efficient. Communication was touchy sometimes but otherwise good."
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+13

Response time2 days
9 neighbors recently requested a quote
Recommended by90%of homeowners
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Avatar for Tri-County Roofing Inc
Tri-County Roofing Inc
4.6(
187
)

Serving Charleston, SC and surrounding areas

In business since 1973

Free estimates

Warranties offered

"very professional, much better job than the last time I had to re-roof with another company. They found some issues with improper work from prior roofer 17 years ago."
Recommended by89%of homeowners
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Avatar for Cardinal Home Inspections
Cardinal Home Inspections
4.8(
16
)

Serving Charleston, SC and surrounding areas

In business since 1999

Free estimates

Proudly serving the LowCountry for over a decade. We approach every inspection with a team effort. Each inspection has a lead inspector and a inspector apprentice present to put more eyes on your potential purchase. We want to disclose to information about your home information that nobody else does.

Recommended by87%of homeowners
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Avatar for ACE Preferred Inspections, Inc
ACE Preferred Inspections, Inc
3.5(
13
)

Serving Charleston, SC and surrounding areas

In business since 1997

Free estimates

Emergency services offered

"DO NOT LET THEM IN YOUR HOME WITHOUT PROOF OF LIABILITY INSURANCE! BEWARE! This company and its inspector, C. Scott Burns, do not follow accepted home inspection standards and caused thousands of dollars in damage to my property during a home inspection. Despite providing pictures, documents, and fulfilling every request, the owner, Jeffery Donaldson, refused to pay for the damage. He only communicated through a generic customer support email and repeatedly refused to identify himself. A quick search of court records in Berkeley, Charleston, and Dorchester counties will show that he has been involved in numerous lawsuits. I have been forced to seek legal action as well. STAY AS FAR AWAY FROM THIS COMPANY AS POSSIBLE. If you are buying or selling a home in the Charleston, SC area, ask who the inspector is and ensure you get a copy of their insurance policy before allowing them into your home. They will refuse to repair any damage caused by their incompetent inspectors. I am extremely disappointed in this company and its owner, Jeffery Donaldson. I will never let this shady business near any of my homes or my clients’ homes. I want to warn everyone to avoid the same painful process I and many others have experienced. There are many other reputable, knowledgeable, and well-trained inspection companies in the Charleston area, such as Cardinal, Hometeam Inspections, or literally ANYONE ELSE besides ACE Preferred Inspections."
Recommended by53%of homeowners
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FAQs for radon gas testing projects in Charleston, SC

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 Charleston, SC 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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