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§ 4.1 — Ohio

Radon mitigation in Ohio

This page lists 35 people and firms with a current radon mitigation credential whose official record names Ohio. Each row shows the credential number, the issuing body, and its own verification date. The latest record check on this page was October 13, 2026; other records may have been checked earlier. Source: the official file linked on each listing. Verify the number before you hire.

Latest credential check October 13, 2026. Methodology Individual record dates may be earlier. NRPP. NRSB.

Radon testingRadon mitigation

Testing listings are people credentialed to measure radon. Mitigation listings are people credentialed to install a reduction system. Some people appear on both lists when the official file says they hold both. The list is ordered by the city or county on each record. That place is where the record is filed, not a promise about where the person works.

35 listings. Type to narrow the list.

  1. Dylan Whyde

    Swat Environmental

    current NRPP № 115878

    mitigation, Akron

    (262) 754-2211October 13, 2026cite ↗

  2. Jodi Reitz

    Ohio Radon Mitigation

    current NRPP № 111531

    mitigation, Alexandria

    (740) 888-1688October 3, 2026cite ↗

  3. Albert J. Pucci

    Mobile Radon Diagnostics

    current NRPP № 103693

    mitigation, Cincinnati

    (513) 271-1212October 13, 2026cite ↗

  4. Robert Smith

    Radon Specialties Company

    current NRSB № RRS-GA003

    mitigation, Cincinnati

    September 30, 2026cite ↗

  5. Steve Geiler

    Geiler Company, Inc.

    current NRPP № 102257

    mitigation, Cincinnati

    (513) 615-3873October 13, 2026cite ↗

  6. John A Verdi

    Guardian Airworks Llc

    current NRPP № 115150

    mitigation, Cleveland

    (440) 477-7658October 13, 2026cite ↗

  7. Michael J. Westerfield

    Westech, Inc

    current NRPP № 112241

    mitigation, Cleves

    (513) 353-0700October 3, 2026cite ↗

  8. Dyllan Rose

    Protect Environmental Llc

    current NRPP № 114374

    mitigation, Columbus

    (614) 419-0319October 13, 2026cite ↗

  9. Gale A Flowers

    Encore Progressive Inspections & Consultants

    current NRPP № 114155

    mitigation, Columbus

    (614) 946-5241October 3, 2026cite ↗

  10. Greg Forsee

    Protect Environmental

    current NRPP № 115268

    mitigation, Columbus

    (614) 419-0319October 13, 2026cite ↗

  11. Noah Fletcher

    Consulting Solutions Inc.

    current NRPP № 114912

    mitigation, Columbus

    (847) 690-0905October 13, 2026cite ↗

  12. Shad M. Evans

    Protect Environmental

    current NRPP № 107791

    mitigation, Columbus

    (614) 419-0319October 13, 2026cite ↗

  13. Brad Hoover

    Environmental Doctor

    current NRPP № 111402

    mitigation, Dayton

    (937) 433-5202October 3, 2026cite ↗

  14. Brenden Gitzinger

    Environmental Doctor

    current NRPP № 107786

    mitigation, Dayton

    (937) 433-5202October 13, 2026cite ↗

  15. Timothy Husvar

    Environmental Doctor

    current NRSB № RRS-26RS005

    mitigation, Dayton

    September 30, 2026cite ↗

  16. Nathan John Ricker

    Radon Reaperz, Llc

    current NRSB № RRS-24RS004

    mitigation, Delaware

    September 30, 2026cite ↗

  17. Adam Bottomley

    Swat Environmental

    current NRSB № RRS-26RS002

    mitigation, Galloway

    262-754-2211September 30, 2026cite ↗

  18. Cameron Christophel

    Swat Environmental

    current NRSB № RRS-26RS006

    mitigation, Galloway

    262-754-2211September 30, 2026cite ↗

  19. Chase McGath

    Swat Environmental

    current NRSB № RRS-24RS014

    mitigation, Galloway

    262-754-2211September 30, 2026cite ↗

  20. Mark Wade

    Swat Environmental

    current NRSB № RRS-25RS013

    mitigation, Galloway

    262-754-2211September 30, 2026cite ↗

  21. Ricky Brown

    Swat Environmental

    current NRSB № RRS-25RS014

    mitigation, Galloway

    262-754-2211September 30, 2026cite ↗

  22. Tevis Sylvester

    Swat Environmental

    current NRSB № RRS-25RS004

    mitigation, Galloway

    262-754-2211September 30, 2026cite ↗

  23. Brian Hatfield

    Ohio Technical Services, Inc.

    current NRPP № 111011

    mitigation, Grove City

    (614) 372-0829October 3, 2026cite ↗

  24. Mario A Andrino

    Ohio Technical Services

    current NRPP № 111788

    mitigation, Grove City

    (614) 989-1193October 3, 2026cite ↗

  25. Matthew Adams

    Sharpshooter Home Inspections

    current NRSB № RRS-23RS004

    mitigation, Munroe Falls

    September 30, 2026cite ↗

  26. Austin Brunner

    A-z Solutions,, Inc.

    current NRPP № 112542

    mitigation, North Canton

    (330) 915-2650October 3, 2026cite ↗

  27. Neal Snyder

    A-z Solutions, Inc.

    current NRPP № 110873

    mitigation, North Canton

    (330) 915-2650October 3, 2026cite ↗

  28. Tony McDonald

    A-z Solutions, Inc.

    current NRPP № 107330

    mitigation, North Canton

    (330) 915-2650October 13, 2026cite ↗

  29. Evan Schmitt

    Harner Radon Relief

    current NRPP № 112333

    mitigation, Ravenna

    (330) 274-2390October 3, 2026cite ↗

  30. Scott Eckert

    Sandusky Bay Inspections ,llc

    current NRSB № RRS-25RS006

    mitigation, Sandusky

    September 30, 2026cite ↗

  31. Jordan Porreca

    Shield Radon Measurement & Mitigation

    current NRSB № RRS-26RS001

    mitigation, Steubenville

    September 30, 2026cite ↗

  32. Dylan Strawser

    Radon Be Gone / Protect Environmental

    current NRPP № 114039

    mitigation, Sunbury

    (614) 419-0319October 13, 2026cite ↗

  33. Andreas Johnsen

    Swat Environmental

    current NRPP № 113804

    mitigation, West Salem

    (330) 644-0560October 13, 2026cite ↗

  34. Coalan Gatts

    Swat Environmental

    current NRPP № 113849

    mitigation, West Salem

    (330) 644-0560October 13, 2026cite ↗

  35. Ryan Dilyard

    Swat Environmental

    current NRPP № 113564

    mitigation, Wooster

    (330) 347-1709October 3, 2026cite ↗
Fig. 4 — 35 of 35 listings have a mappable place. Each pin is a current listing at the Census city or county centroid on the file, approximate. Pins that share a place are spread so you can click them. Not street addresses.

Appendix A

Questions before you hire

How do I verify a radon credential listed for Ohio?

Open the source link on this page and match the name and credential number to the official file. Status can change after a record’s verification date. The latest record check on this page was October 13, 2026; check each record’s date. If the official page disagrees with this directory, trust the official page. We do not invent credential numbers.

Does EPA certify radon contractors?

The U.S. EPA does not certify radon contractors. EPA publishes guidance on finding a qualified radon service provider and points to state programs and national certifications. This directory is not affiliated with EPA. We do not display EPA-certified badges.

What does last verified mean on this page?

Last verified on an individual record is the date we checked its official source. The latest credential check on this page was October 13, 2026; other records may have earlier dates. We refresh the roster monthly. Current means the person appeared as currently credentialed on the source at that record’s verification date. Credentials can expire between refreshes, so follow the source link.

Appendix A.2

Before you hire

  1. Ask who holds the credential printed on this page, and ask them to show the same number. Some firms employ several credentialed people. The listing is the person or firm on the official file, not whoever answers the phone.
  2. Ask what test method or mitigation system they will use for this building. A credential is not a work plan. Testing and mitigation are separate services here, and a person appears on both lists only when the official file says they hold both.
  3. Ask how they will document test results or the finished mitigation system. Keep that document with the credential number you verified. This directory does not score jobs, publish reviews, or collect quotes.

The full checklist: How to choose a radon mitigation company: 6 checks before you sign

Ohio pages here use current NRPP or NRSB certifications. City pages use the city printed on that record, not a ZIP-radius search. A national certification is not a state license in Ohio. Some states require a separate state credential to work legally. Read the methodology. Credential status can change.