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Vertical Inspections Inc

Williams Bay, Wisconsin. Testing

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

Call Vertical Inspections Inc at (262) 620-8092

Credentials

Licenses and certifications

1 credential is on file for this business, exactly as the issuer's list printed it.

These are Illinois licenses, and the business address is in Wisconsin.

Radon411 has no Wisconsin record for this business. Before hiring it for a home in Wisconsin, check what Wisconsin asks for. What Wisconsin requires

Illinois state license (1)

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. RNI2022240Measurement ProfessionalVerified November 11, 2026Verify RNI2022240 with the Illinois Emergency Management Agency (IEMA) (opens in a new tab)

Licensing in Wisconsin

Wisconsin's radon program says the state does not license or certify radon professionals.

Wisconsin's radon program, Wisconsin Department of Health Services, 1-888-569-7236.

What Wisconsin requires, in its program’s own words, and how to check a credential

Local radon figures

Radon in Williams Bay

Williams Bay lies in Walworth County, where 37.9% of 340 radon tests reported to CDC (2023) were at or above 4 pCi/L, 2.2 points above Wisconsin pooled (35.7%), 35th of 69 Wisconsin counties with 30 or more tests.

Radon test figures for the county Williams Bay lies in
CountyTestsAt or above 4 pCi/LMedianWisconsin, pooledRank in the stateEPA zone
Walworth County34037.9%2.8 pCi/L35.7%35 of 69Zone 1

Shares of tests people chose to run and report, by county (2023); the state's is its counties' counts added up, calculated by Radon411. Only a test measures a home.

The counties around Williams Bay

Around Walworth County, where Williams Bay lies, the nearest Wisconsin counties with a CDC figure for 2023 run from 20.2% to 49.9% of tests at or above 4 pCi/L; the closest, Racine County, is 25 miles away at 37.3%.

The nearest Wisconsin counties to Walworth County with 30 or more tests, 2023
CountyDistanceTestsAt or above 4 pCi/LMedian
Racine County25 mi44537.3%2.7 pCi/L
Kenosha County26 mi41542.4%3.4 pCi/L
Rock County27 mi45149.9%3.9 pCi/L
Waukesha County27 mi1,63343.2%3.2 pCi/L
Jefferson County27 mi29644.3%3.5 pCi/L
Milwaukee County37 mi2,60520.2%1.5 pCi/L

Nearby

Radon professionals nearest Williams Bay

More radon professionals in Williams BayMore radon professionals in Wisconsin

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