Home › Illinois › Westmont › William Arnold

William ArnoldLicensed

Name: William Arnold
Address: Westmont, IL

Licensed radon professional based in Westmont, DuPage County, IL

Company	Radon Detection Specialists, Inc.
License number	RNIT2020219
License type	Radon Measurement Technician
License status	Active, IEMA-OHS licensed
Based in	Westmont, DuPage County, Illinois

"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.

Get free quotes

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 #RNIT2020219 directly with the agency that issued it, confirm it is still active, and ask for a current certificate of insurance.

Checked against IEMA-OHS radon license index, last checked 2026-11-02. See the issuing agency.

For the business owner: Own William Arnold? Claim this listing

Compare radon professionals based in Westmont

All listings based in Westmont 46

Other radon professionals based in Westmont

David BurchertLicensed

Radon · Tester

Radon Detection Specialists, Inc. · Based in Westmont, IL · License #RNIT20242389

Terrence CarbonaraLicensed

Radon · Tester

Radon Detection Specialists, Inc. · Based in Westmont, IL · License #RNIT2020214

Robert FlaryLicensed

Radon · Tester

Radon Detection Specialists, Inc. · Based in Westmont, IL · License #RNIT20253227

Joseph HarrisonLicensed

Radon · Tester

Radon Detection Specialists, Inc. · Based in Westmont, IL · License #RNIT20242706

Brian BrownLicensed

Radon · Tester

Radon Detection Specialists, Inc. · Based in Westmont, IL · License #RNIT20242405

Michelle ReyesLicensed

Radon · Tester

Radon Detection Specialists, Inc. · Based in Westmont, IL · License #RNIT2013231

Other radon professionals based in DuPage County

Devlin McAllisterLicensed

Radon · Tester

Brickkicker Inc · Based in Lisle, IL · License #RNIT20242860

Richard HernandezLicensed

Radon · Tester

Chicagoland and Midwest Inspections LLC. · Based in Itasca, IL · License #RNI20232338

James LukaLicensed

Radon · Tester

JBL Radon Gas Detection LLC · Based in Elmhurst, IL · License #RNI2007206

Devlin McAllisterLicensed

Radon · Tester

The BrickKicker · Based in Lisle, IL · License #RNI20263555

Amy MurphyLicensed

Radon · Tester

DuPage Radon Testing · Based in Warrenville, IL · License #RNI2009212

See every listing based in Westmont.