Skip to content
RADON411

ProfessionalsBusiness profile

DuPage Radon Testing

Warrenville, Illinois. Testing

6 Illinois state licenses verified against the Illinois Emergency Management Agency (IEMA) list, last checked November 11, 2026.

Call DuPage Radon Testing at (630) 225-7997

Credentials

Licenses and certifications

6 credentials are on file for this business, each exactly as the issuer's list printed it.

Illinois state licenses (6)

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.

LicenseNumberStatus on the listVerifiedCheck with the issuer
Testing licenseNo. RNI2009212Measurement ProfessionalVerified November 11, 2026Verify RNI2009212 with the Illinois Emergency Management Agency (IEMA) (opens in a new tab)
Testing licenseNo. RNI2013254Measurement ProfessionalVerified November 11, 2026Verify RNI2013254 with the Illinois Emergency Management Agency (IEMA) (opens in a new tab)
Testing licenseNo. RNIT2001205Measurement TechnicianVerified November 11, 2026Verify RNIT2001205 with the Illinois Emergency Management Agency (IEMA) (opens in a new tab)
Testing licenseNo. RNIT2014225Measurement TechnicianVerified November 11, 2026Verify RNIT2014225 with the Illinois Emergency Management Agency (IEMA) (opens in a new tab)
Testing licenseNo. RNIT20263352Measurement TechnicianVerified November 11, 2026Verify RNIT20263352 with the Illinois Emergency Management Agency (IEMA) (opens in a new tab)
Testing licenseNo. RNIT20263487Measurement TechnicianVerified November 11, 2026Verify RNIT20263487 with the Illinois Emergency Management Agency (IEMA) (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 Warrenville

Warrenville 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.

Radon test figures for the county Warrenville lies in
CountyTestsAt or above 4 pCi/LMedianIllinois, pooledRank in the stateEPA zone
DuPage County19,40133.7%2.7 pCi/L33.7%53 of 70Zone 2

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 Warrenville

Around DuPage County, where Warrenville 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%.

The nearest Illinois counties to DuPage County with 30 or more tests, 2017
CountyDistanceTestsAt or above 4 pCi/LMedian
Cook County14 mi26,93719.4%1.9 pCi/L
Kane County19 mi8,68236.6%2.8 pCi/L
Kendall County25 mi3,04535.0%2.8 pCi/L
Will County29 mi10,77640.0%3.1 pCi/L
Lake County33 mi13,05027.4%2.4 pCi/L
DeKalb County35 mi1,70741.1%3.3 pCi/L

Nearby

Radon professionals nearest Warrenville

More radon professionals in WarrenvilleMore radon professionals in Illinois

Is this your business?