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National Property InspectionLicensed

Licensed radon professional based in Johnston, Polk County, IA

License number	RNTST09114
License type	Radon Measurement Specialist
License status	Active, Iowa HHS certified
Based in	Johnston, Polk County, Iowa 50131

"Based in" is the city and county of the address on the business's license record. That can be a mailing address; it doesn't tell you where the business works.

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How to verify this license

We publish the license details exactly as they appear in the official licensing records of the agency that issued the license; we do not vouch for the business itself. Before hiring, look up license #RNTST09114 directly with the agency that issued it, confirm it is still active, and ask for a current certificate of insurance.

Checked against Iowa HHS radon credential lists, last checked 2026-11-02. See the issuing agency.

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