Radon Testing in Columbus, OH
103 licensed companies in the Columbus area · state license records checked November 1, 2026
Radon testing companies in Columbus
Listed alphabetically, with companies based in Columbus first, then 69 elsewhere in the Columbus area. We do not rank companies, and no one pays to appear here. How we verify · How we make money
- License verifiedChecked Nov 1, 2026
Mid Ohio Radon Experts LLC
Pleasantville, OH- Radon mitigation
Ohio DOH license RC390 · active until Nov 30, 2028 · Ohio DOH license RS295 · active until Nov 30, 2028
- License verifiedChecked Nov 1, 2026
MID-OHIO Radon
Mount Gilead, OH- Radon mitigation
Ohio DOH license RC276 · active until Jul 2, 2028 · Ohio DOH license RS451 · active until Jul 3, 2028
- License verifiedChecked Nov 1, 2026
None
Lewis Center, OH- Radon mitigation
Ohio DOH license RS2 · active until Jan 5, 2028
- License verifiedChecked Nov 1, 2026
Ohio Radon Control
Marysville, OH- Radon mitigation
Ohio DOH license RC105 · active until Feb 5, 2028 · Ohio DOH license RS199 · active until Feb 5, 2028
- License verifiedChecked Nov 1, 2026
Ohio Radon Mitigation, LLC
Alexandria, OH- Radon mitigation
Ohio DOH license RC181 · active until Apr 25, 2027 · Ohio DOH license RS290 · active until Oct 13, 2028 · Ohio DOH license RS372 · active until Dec 12, 2026
- License verifiedChecked Nov 1, 2026
Ohio Technical Services
Grove City, OH- Radon mitigation
Ohio DOH license RC94 · active until Aug 13, 2028 · Ohio DOH license RS320 · active until Dec 13, 2027 · Ohio DOH license RS418 · active until Feb 12, 2028 · Ohio DOH license RS604 · active until Apr 21, 2028 · Ohio DOH license RS771 · active until Jul 10, 2028
- License verifiedChecked Nov 1, 2026
Pinpoint Environmental Mitigation Services LLC
Grove City, OH- Radon mitigation
Ohio DOH license RC482 · active until Jul 13, 2028 · Ohio DOH license RS773 · active until Jul 13, 2028 · Ohio DOH license RS774 · active until Jul 13, 2028
- License verifiedChecked Nov 1, 2026
Protect Environmental
Marysville, OH- Radon mitigation
Ohio DOH license RS233 · active until May 13, 2027 · Ohio DOH license RS499 · active until Jan 20, 2028 · Ohio DOH license RS677 · active until Mar 18, 2028 · Ohio DOH license RS678 · active until Mar 18, 2028 · Ohio DOH license RS780 · active until Oct 19, 2028 · Ohio DOH license RS80 · active until Mar 22, 2028
- License verifiedChecked Nov 1, 2026
Radon Pros
Grove City, OH- Radon mitigation
- Radon testing
Ohio DOH license RC266 · active until Mar 8, 2028 · Ohio DOH license RS428 · active until Apr 25, 2028 · Ohio DOH license RT2076 · active until Jun 27, 2027
- License verifiedChecked Nov 1, 2026
Radon Reaperz
Lewis Center, OH- Radon mitigation
Ohio DOH license RC373 · active until Feb 10, 2028 · Ohio DOH license RS602 · active until Feb 10, 2028 · Ohio DOH license RS702 · active until Dec 16, 2026 · Ohio DOH license RS710 · active until Feb 27, 2027
- License verifiedChecked Nov 1, 2026
Radon Reduction
Dublin, OH- Radon mitigation
Ohio DOH license RC440 · active until Feb 7, 2027 · Ohio DOH license RS704 · active until Feb 7, 2027 · Ohio DOH license RS705 · active until Feb 6, 2027
- License verifiedChecked Nov 1, 2026
Residential Radon Specialists
Westerville, OH- Radon mitigation
Ohio DOH license RC161 · active until Dec 21, 2027 · Ohio DOH license RS261 · active until Dec 4, 2026 · Ohio DOH license RS322 · active until Dec 21, 2027 · Ohio DOH license RS323 · active until Dec 21, 2027
- License verifiedChecked Nov 1, 2026
Rock to Ridge Home Inspections LLC
Newark, OH- Radon mitigation
Ohio DOH license RC392 · active until Dec 9, 2026 · Ohio DOH license RS628 · active until Dec 8, 2026
- License verifiedChecked Nov 1, 2026
Roots Contracting LLC
Grove City, OH- Radon mitigation
Ohio DOH license RC476 · active until Apr 7, 2028 · Ohio DOH license RS759 · active until Apr 7, 2028
- License verifiedChecked Nov 1, 2026
Safe Check Radon Services, LLC
Orient, OH- Radon mitigation
Ohio DOH license RC311 · active until Mar 4, 2028 · Ohio DOH license RS509 · active until Mar 4, 2028 · Ohio DOH license RS727 · active until Feb 11, 2028
- License verifiedChecked Nov 1, 2026
The Radon Guy LLC
Baltimore, OH- Radon mitigation
Ohio DOH license RC204 · active until Dec 20, 2027 · Ohio DOH license RS321 · active until Dec 20, 2027
- License verifiedChecked Nov 1, 2026
The Radon Wizard LLC
Sunbury, OH- Radon mitigation
Ohio DOH license RC110 · active until Jul 10, 2028 · Ohio DOH license RS206 · active until Jul 10, 2028
- License verifiedChecked Nov 1, 2026
Weekend Warriors Ohio Chapter LLC
Circleville, OH- Radon mitigation
Ohio DOH license RC474 · active until Mar 18, 2028 · Ohio DOH license RS751 · active until Mar 19, 2028 · Ohio DOH license RS753 · active until Mar 19, 2028
- License verifiedChecked Nov 1, 2026
Worth Mitigating LLC
Newark, OH- Radon mitigation
Ohio DOH license RS784 · active until Oct 19, 2028
- License verifiedChecked Nov 1, 2026
Worth Mitigation LLC
Newark, OH- Radon mitigation
Ohio DOH license RC487 · active until Oct 19, 2028
Showing 21–40 of 41