1st Defense Radon
Cottage Grove, MN
Listed for: TestingMitigation
Verified:Minnesota state license
No phone listedWebsite of 1st Defense Radon (opens in a new tab)
ProfessionalsBusiness profile
Radon Removal Inc
Long Lake, Minnesota. Mitigation
3 Minnesota state licenses verified against the Minnesota Department of Health list, last checked October 4, 2026.
Credentials
Licenses and certifications
3 credentials are on file for this business, each exactly as the issuer's list printed it.
Minnesota state licenses (3)
Issued by the Minnesota Department of Health, not by NRPP or NRSB. Radon411 last checked the list on October 4, 2026. No expiry date is on the record.
| License | Number | Status on the list | Verified | Check with the issuer |
|---|---|---|---|---|
| Mitigation license | No. RMIT-00019 | Minnesota radon mitigation license | Verified October 4, 2026 | Verify RMIT-00019 with the Minnesota Department of Health (opens in a new tab) |
| Mitigation license | No. RMIT-00047 | Minnesota radon mitigation license | Verified October 4, 2026 | Verify RMIT-00047 with the Minnesota Department of Health (opens in a new tab) |
| Mitigation license | No. RMIT-00074 | Minnesota radon mitigation license | Verified October 4, 2026 | Verify RMIT-00074 with the Minnesota Department of Health (opens in a new tab) |
Licensing in Minnesota
Minnesota's radon program says the state licenses or certifies radon professionals.
The Radon Licensing Act requires anyone who performs a radon test or radon mitigation, in a building they do not own or lease, must be licensed by MDH.
MDH Indoor Air Unit
MN Dept. of Health
Its page covers who may test and fix radon in the state and the disclosure rule for home sales.
Phone 651-201-4601 · Email health.indoorair@state.mn.us
Visit the program's page (opens in a new tab)Read October 3, 2026
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