Radon Mitigation in Roanoke, VA: Get Matched With a Certified Pro

Roanoke city, Roanoke County and Salem are all in EPA Radon Zone 1, the highest-potential category. If your radon test came back at or above 4 pCi/L, tell us about your home and we'll pass your request to an independent, NRPP- or NRSB-certified radon mitigation professional who works in the Roanoke Valley.

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Radon mitigation in Roanoke, VA: what to know

Radon is a colorless, odorless radioactive gas that comes from the natural breakdown of uranium in soil and rock. It enters homes through foundation cracks, sump pits, crawlspaces and gaps around pipes. According to the EPA, radon is the second leading cause of lung cancer in the United States and is linked to about 21,000 lung-cancer deaths a year. The Virginia Department of Health says radon exposure may contribute to almost 700 lung-cancer cases a year in Virginia.

EPA's map puts Roanoke city, Roanoke County, Salem and Botetourt County in Zone 1, where predicted average indoor screening levels are above 4 pCi/L. That's a county-level prediction, not a verdict on your house: neighboring homes can test very differently. EPA's own advice is that all homes should be tested, regardless of zone.

When to call a mitigation pro

• 4 pCi/L or higher on a long-term test, or on the average of two short-term tests: EPA says fix your home.
• Between 2 and 4 pCi/L: EPA says consider fixing. There is no known safe level of radon.
• Buying or selling a home in the valley: a test result above the action level often becomes part of the negotiation. See testing during a real estate deal.

What a certified mitigator usually does

For homes with a basement or slab, the most common approach is active soil depressurization: a contractor drills a suction point through the slab, runs PVC pipe to a fan in an unconditioned space (attic, garage or outside), and vents the gas above the roofline. Crawlspace homes usually get a sealed plastic vapor barrier with suction underneath. EPA's installation rules, such as vent height, fan location and a required warning gauge, are summarized on our mitigation page.

Virginia requires certified radon pros

Under Virginia Code § 32.1-229.01, anyone who tests or mitigates radon in the Commonwealth must be listed by the National Radon Proficiency Program (NRPP) or the National Radon Safety Board (NRSB). Mitigation contractors also need a Virginia contractor license with the Radon Mitigation Contracting (RMC) specialty. We only pass requests to professionals who show both, and we encourage you to double-check them yourself on DPOR License Lookup and the NRPP or NRSB directories.

Why use a referral service?

You can absolutely find a pro on your own. VDH links the NRPP and NRSB directories on its radon page. We just make it a one-form step: you describe your home and test result once, and a certified pro who covers your ZIP code follows up by email or phone. Using this site costs you nothing. Any price, contract and warranty come straight from the professional.

Have questions first? Read the radon FAQ.