Radon Dave LLC
Westmont, IL
Listed for: Testing
Verified:Illinois state license
Call Radon Dave LLC at (312) 371-1519No website listed
ProfessionalsBusiness profile
Radon Detection Specialists, Inc.
Westmont, Illinois. Testing
40 Illinois state licenses verified against the Illinois Emergency Management Agency (IEMA) list, last checked November 11, 2026.
1 Iowa state license verified against the Iowa Department of Health and Human Services, Bureau of Radiological Health list, last checked November 3, 2026.
2 Kansas state licenses verified against the Kansas Department of Health and Environment, Kansas Radon Program list, last checked October 4, 2026.
1 Nebraska state license verified against the Nebraska Department of Health and Human Services, Radon Program list, last checked November 3, 2026.
Credentials
Licenses and certifications
44 credentials are on file for this business, each exactly as the issuer's list printed it.
Illinois state licenses (40)
Issued by the Illinois Emergency Management Agency (IEMA), not by NRPP or NRSB. Radon411 last checked the list on November 11, 2026. No expiry date is on the record.
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 November 3, 2026. No expiry date is on the record.
| License | Number | Status on the list | Verified | Check with the issuer |
|---|---|---|---|---|
| Testing license | No. RNTST10227 | Certified Radon Measurement Specialist | Verified November 3, 2026 | Verify RNTST10227 with the Iowa Department of Health and Human Services, Bureau of Radiological Health (opens in a new tab) |
Kansas state licenses (2)
Issued by the Kansas Department of Health and Environment, Kansas Radon Program, 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 |
|---|---|---|---|---|
| Testing license | No. KS-MS-0677 | Kansas certified radon measurement technician | Verified October 4, 2026 | Verify KS-MS-0677 with the Kansas Department of Health and Environment, Kansas Radon Program (opens in a new tab) |
| Testing license | No. KS-MS-0678 | Kansas certified radon measurement technician | Verified October 4, 2026 | Verify KS-MS-0678 with the Kansas Department of Health and Environment, Kansas Radon Program (opens in a new tab) |
Nebraska state license (1)
Issued by the Nebraska Department of Health and Human Services, Radon Program, not by NRPP or NRSB. Radon411 last checked the list on November 3, 2026.
| License | Number | Status on the list | Expires | Verified | Check with the issuer |
|---|---|---|---|---|---|
| Testing license | No. RMB-1274 | Licensed Radon Measurement Business | Expires March 31, 2027 | Verified November 3, 2026 | Verify RMB-1274 with the Nebraska Department of Health and Human Services, Radon Program (opens in a new tab) |
Licensing in Illinois
Illinois's radon program says the state licenses or certifies radon professionals.
IEMA-OHS Radon Program, Illinois Emergency Management Agency and Office of Homeland Security, (800) 325-1245.
What Illinois requires, in its program’s own words, and how to check a credential
Local radon figures
Radon in Westmont
Westmont lies in DuPage County, where 33.7% of 19,401 radon tests reported to CDC (2017) were at or above 4 pCi/L, 0.0 points below Illinois pooled (33.7%), 53rd of 70 Illinois counties with 30 or more tests.
Shares of tests people chose to run and report, by county (2017); the state's is its counties' counts added up, calculated by Radon411. Only a test measures a home.
The counties around Westmont
Around DuPage County, where Westmont lies, the nearest Illinois counties with a CDC figure for 2017 run from 19.4% to 41.1% of tests at or above 4 pCi/L; the closest, Cook County, is 14 miles away at 19.4%.
Nearby
Radon professionals nearest Westmont
- View profile for Radon Dave LLC
- View profile for Alta Inspection Services
Alta Inspection Services
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Listed for: Testing
Verified:Illinois state license
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Verified:Illinois state license
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Verified:Illinois state license
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Verified:Illinois state license
Call Radon & Mold Testing Services at (630) 935-2888No website listed
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