GroundRosterC & S Companies
| Contact on the state list | Nicholas Coulombe, Claire Del Fatti, Hayden Hass |
| Listed as | Radon Tester and Mitigation Contractor |
| Status | On the NYSDOH list; New York does not license radon professionals |
| Based in | Syracuse, Onondaga County, New York |
| Counties served, per the state list | Albany, Allegany, Broome, Cattaraugus, Cayuga, Chautauqua, Chemung, Chenango, Clinton, Columbia, Cortland, Delaware, Dutchess, Erie, Essex, Franklin, Fulton, Genesee, Greene, Hamilton, Herkimer, Jefferson, Lewis, Livingston, Madison, Monroe, Montgomery, Niagara, Oneida, Onondaga, Ontario, Orange, Orleans, Oswego, Otsego, Putnam, Rensselaer, Richmond, Rockland, Saratoga, Schenectady, Schoharie, Schuyler, Seneca, St. Lawrence, Steuben, Sullivan, Tioga, Tompkins, Ulster, Warren, Washington, Wayne, Westchester, Wyoming, Yates |
"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.
How to verify this license
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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