Radon is a naturally occurring, radioactive gas formed by the breakdown of uranium. Radon is tasteless, colorless, and odorless, and is found in many types of soil and rocks. It can enter homes through cracks in foundations, sump pump crocks, crawl spaces, or other openings.

Radon is present in outdoor air, but is diluted to such low levels that it is usually not a concern. However, inside an enclosed space (such as a home), radon can build up to dangerous levels. Any home can have a radon problem - new and old homes, well-sealed and drafty homes, and homes with or without basements. The only way to know your home's radon level is to test!

Radon Test Kits

Order a radon kit online 

Order a do-it-yourself radon kit online for $12.95 to be shipped to your home. These are the same type of kits distributed at our office. Laboratory analysis and shipping are included in the price. Order here: https://mi.radon.com

Purchase a radon test kit in person 

You do not have to be a Washtenaw County resident to purchase a kit, and you can use the kit to test a home that is not in Washtenaw County.

  • Washtenaw County Environmental Health Division - Stop by to purchase a radon kit between the hours of 8:30 a.m. and 3:00 p.m., Monday through Friday. The office is located at the Western County Service Center at 705 N Zeeb Road, Ann Arbor, MI 48103. For no-contact services, call 734-222-3800 or fax 734-222-3930 (use this credit card payment form) to process payment, and then come pick up the radon kit in the lobby of the Western County Service Center. Email Angela Parsons with questions. Test kits are $10 each.
  • Ypsilanti Township Residential Services Department - Stop by between the hours of 8:30 a.m. and 4:30 p.m., Monday through Friday (closed for lunch Noon to 1 p.m. daily). The office is located in the Tilden R. Stumbo Civic Center at 7200 S Huron River Drive, Ypsilanti, MI 48197. Email [email protected] or call 734-544-4000 Ext. 5 with questions. Test kits are $10 each.

Please note: 

You will receive results from our do-it-yourself radon test kits in about 10 days to two weeks. You can visit www.radon.com to look up your results if you have the test kit’s serial number. We cannot guarantee results in a specific period of time.

If you need radon test results quickly because you are buying or selling a home and the closing date is near, please hire a private company to use a continuous radon monitor (CRM) to test. These computerized devices can usually provide results in a little over 48 hours.