Dor-Mar HVAC
Licensed Contractor2 licensed radon professionals on record, under the OH radon program.
Dor-Mar HVAC is based in Newark, OH and licensed under the OH radon program.
The state roster lists 2 licensed individuals under this business, across 2 license types: Radon Mitigation Contractor, Radon Mitigation Specialist. A larger licensed roster usually means the company can schedule around a closing date rather than putting you in a queue behind one technician.
Every license on record here is for mitigation, meaning installing the system. If you still need the house tested first, that is a separate credential and you may need a second provider.
Licensed professionals at this business
| Licensee | License type | Number | State |
|---|---|---|---|
| Brewer, Greg | Radon Mitigation Contractor | RC442 | OH |
| Brewer, Gregory | Radon Mitigation Specialist | RS708 | OH |
This record was pulled from the official state roster listed below. Licenses can lapse, transfer, or be revoked after the date we pulled them (last pull: 2026-08-05). Always confirm current license status directly with the state agency before hiring.
- Ohio Department of Health Radon Licensure dataset (DataOhio) · pulled 2026-08-05 Official lookup
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