Test For Radon

Not sure whether to test? View the average radon measurements in your zip code.

Radon tests kits are easy to use and easy to find.

  • Short-term kits (48 hours) cost $10.
  • Long-term kits (90 days – 1 year) cost $23. Only available from the Fond du Lac County Health Department.


Short-term kits are available from municipal clerks in:

Municipality Address Phone
Brandon 115 N. Center St., Brandon, WI 920/346-5415
Fairwater 104 Main St., Fairwater, WI 920/346-5418
Fond du Lac County Health Department City County Government Center, 160 S. Macy, Fond du Lac, WI. 3rd Floor. 920/929-3085
Mt. Calvary 999 Fond du Lac St., Mt. Calvary, WI 920/948-9155
North Fond du Lac 16 Garfield St., North Fond du Lac, WI 920/929-3765
Ripon 100 Jackson Street, Ripon, WI 920/748-4915
UW-Extension 400 University Dr., Fond du Lac, WI. (2nd floor of Admin/Ext Bldg at UW-Fond du Lac) 920/929-3173


Instructions are included with the test kit. When the testing period is over, mail the kit to the lab, and the lab mails back your results in a few weeks. Contact Gloria Smedema at the Fond du Lac County Health Department (gloria.smedema@fdlco.wi.gov or 920/929-3085) if you have questions about your results.

If you are planning to buy or sell a house, it is highly recommended that you use a certified radon measurement professional.

With a result of 4 pC/L or higher, the EPA recommends mitigating your home using a certified radon mitigation contractor. This can be done after a home is built or during construction. People age 62 and older with very low incomes living outside the City of Fond du Lac may apply to receive a loan or grant from the USDA to finance a radon mitigation project in their home.

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