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Approved Dewatering & Radon

Radon professional based in Cornwall, Orange County, NY

Contact on the state list	Dennis Bender
Listed as	Radon Mitigation Contractor
Status	On the NYSDOH list; New York does not license radon professionals
Based in	Cornwall, Orange County, New York
Counties served, per the state list	Columbia, Dutchess, Orange, Putnam, Rockland, Sullivan, Ulster, Westchester

"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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We publish these details as they appear on the state list. Being on it is not a state license, and we do not vouch for the business. Before hiring, ask to see a current radon certification and a current certificate of insurance.

Checked against NYS Department of Health certified radon tester and mitigation contractor lists, last checked 2026-11-02. See the issuing agency.

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