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Matthew W. WilliamsLicensed

Licensed radon professional based in Winchester, Frederick County, VA

License number	RM000355
License type	Radon Mitigation Specialist
License status	Active, WV OEHS licensed
Based in	Winchester, Frederick County, Virginia 22602

"Based in" is the city and county of the address on the business's license record. That can be a mailing address; it doesn't tell you where the business works.

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How to verify this license

We publish the license details exactly as they appear in the official licensing records of the agency that issued the license; we do not vouch for the business itself. Before hiring, look up license #RM000355 directly with the agency that issued it, confirm it is still active, and ask for a current certificate of insurance.

Checked against WV OEHS radon license search, last checked 2026-11-02. See the issuing agency.

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