Winona County
Local NEHA certified Radon Measurement Specialists
Certified Radon Inspectors
NEHA Certified Radon Measurement Specialists
| Company | Inspector | Phone | City | County |
| Ellefson Builders, Inc | Mike Ellefson | (507) 450-7465 | Winona | Winona |
| Radon Mitigation Services/Engen Construction Inc | Jeff Engen | (507) 493-5252 | Mabel | Fillmore |
| Pederson Plumbing | Allen Pederson | (507) 493-5589 | Mabel | Fillmore |
| Sheldon Plumbing and Heating Inc | J. Phil Sheldon | (507) 346-2860 | Spring Valley | Fillmore |