ProfessionalsBusiness profile
Clayton's Home Inspections
East Dubuque, IllinoisTesting
1 Iowa state license verified against the Iowa Department of Health and Human Services, Bureau of Radiological Health list, last checked September 25, 2026.
Credentials
Licenses and certifications
1 credential is on file for this business, exactly as the issuer's list printed it.
These are Iowa licenses, and the business address is in Illinois.
Radon411 has no Illinois record for this business. Before hiring it for a home in Illinois, check what Illinois asks for. What Illinois requires
Iowa state license (1)
Issued by the Iowa Department of Health and Human Services, Bureau of Radiological Health, not by NRPP or NRSB. Radon411 last checked the list on September 25, 2026. No expiry date is on the record.
| Holder | License | Number | Status on the list | Verified | Check with the issuer |
|---|---|---|---|---|---|
| Degenhardt, Clayton J. · Testing | Testing | No. RNTST10146 | Certified Radon Measurement Specialist | Verified September 25, 2026 | Verify RNTST10146 with the Iowa Department of Health and Human Services, Bureau of Radiological Health (opens in a new tab) |
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