Listed for: Testing
Verified:Pennsylvania state license
Call Pro-Spect Inspection Services INC at (570) 244-2090No website listed
ProfessionalsBusiness profile
Rhis, INC.
Wilmington, Delaware. Testing and mitigation
11 Pennsylvania state licenses verified against the Pennsylvania Department of Environmental Protection, Bureau of Radiation Protection list, last checked November 3, 2026.
Credentials
Licenses and certifications
11 credentials are on file for this business, each exactly as the issuer's list printed it.
These are Pennsylvania licenses, and the business address is in Delaware.
Radon411 has no Delaware record for this business. Before hiring it for a home in Delaware, check what Delaware asks for. What Delaware requires
Pennsylvania state licenses (11)
Issued by the Pennsylvania Department of Environmental Protection, Bureau of Radiation Protection, not by NRPP or NRSB. Radon411 last checked the list on November 3, 2026. No expiry date is on the record.
Licensing in Delaware
Ask Delaware Division of Public Health Radon Office what it requires before you hire.
Delaware Division of Public Health Radon Office, Delaware Division of Public Health, 1-800-464-HELP.
What Delaware requires, in its program’s own words, and how to check a credential
Local radon figures
Radon in Wilmington
Wilmington lies in New Castle County, where 17.0% of 10,247 radon tests reported to CDC (2008 to 2017, laboratory) were at or above 4 pCi/L, 0.3 points above Delaware pooled (16.7%), 1st of 3 Delaware counties with 30 or more tests.
Shares of tests people chose to run and report, by county (2008 to 2017, laboratory); the state's is its counties' counts added up, calculated by Radon411. Only a test measures a home.
The counties around Wilmington
Around New Castle County, where Wilmington lies, the nearest Delaware counties with a CDC figure for 2008 to 2017, laboratory run from 10.4% to 16.9% of tests at or above 4 pCi/L; the closest, Kent County, is 34 miles away at 16.9%.
Nearby
Radon professionals nearest Wilmington
More radon professionals in WilmingtonMore radon professionals in Delaware
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