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CTL Engineering, Inc.Licensed

Licensed radon professional based in Columbus, Franklin County, OH

Company	Matthew McClelland
License number	RT684
License type	Radon Tester
License status	Active, Ohio ODH licensed
License expires	September 10, 2027
Based in	Columbus, Franklin County, Ohio 43204

"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 #RT684 directly with the agency that issued it, confirm it is still active, and ask for a current certificate of insurance.

Checked against ODH radon licensure data, last checked 2026-11-02. See the issuing agency.

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