GroundRosterMSM Home ServicesLicensed
| Company | Mason McClew |
| License number | RT2050 |
| License type | Radon Tester |
| License status | Active, Ohio ODH licensed |
| License expires | February 21, 2027 |
| Based in | Cumberland, Allegany County, Maryland 21502 |
"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.
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 #RT2050 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.
See every listing based in Cumberland.