Certified radon testers and mitigators in South Carolina

17 certified radon testers and mitigation contractors in South Carolina, from the state's official list or the national NRPP directory.

2 cities & counties17 certified pros

Pros in this state come from the NRPP national certification directory (checked Oct 28, 2026). Get Radon Quotes is independent and not affiliated with NRPP. Some states also require a state license, so confirm with your state radon office before you hire. Your state radon office.

Counties in South Carolina A–Z

Smaller counties in South Carolina

Counties with only a few listings so far, grouped by county.

Berkeley County 1

Sherlock Homes PS, LLC

Moncks Corner, SC

Certified testing

Get a quote (419) 957-2422 Directions

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Chester County 1

Patriot Inspections, LLC

Chester, SC

Certified testing

Get a quote (803) 374-1539 Directions

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Oconee County 1

Valley Environmental radon services

Seneca, SC

Certified mitigation

Get a quote (864) 353-8814 Directions

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Richland County 1

Sophia R Rhoades

Columbia, SC

Certified testingIndividual certification

Get a quote (910) 352-2870 Directions

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York County 1

ECS Southeast, LLP

Rock Hill, SC

Certified testing

Get a quote (571) 510-5595 Directions

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What do you need?Not sure? Start with a test. Most homes only need a fix if the result is 4 pCi/L or higher.ZIP codeYour namePhoneContractors usually call to schedule.Email (optional)Anything else they should know? (optional)For example: closing date, basement type, or your result.FoundationYour radon result (if you have one)Situation

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