Certified radon testers & mitigatorsIndiana — testing — verified 29 Aug 2026

§ 4.1 — Mishawaka, IN

Certified radon testing in Mishawaka, IN

5 current listings from the official file. Verify the credential number before you hire.

Last verified August 29, 2026. Methodology IN IPLA.

Certified radon testingCertified radon mitigation

  1. Dawn E. Coffee

    current IN IPLA № RTP00657

    testing

    August 29, 2026cite ↗

  2. Drake Harke

    current IN IPLA № RTS01461

    testing

    August 29, 2026cite ↗

  3. Joshua Hatfield

    current IN IPLA № RTP01262

    testing

    August 29, 2026cite ↗

  4. Robert Coffee

    current IN IPLA № RTP00908

    testing

    August 29, 2026cite ↗

  5. Travis N Thomas

    current IN IPLA № RTP01049

    testing

    August 29, 2026cite ↗
Fig. 4 — Mishawaka, IN, approximate. Pin is the city on the official file, not a street address.

Appendix A — Before you hire

  1. Who holds the credential, and can they show the same number that appears on this page?
  2. What test method or mitigation system will they use for this building?
  3. How will they document results or the finished system?

§ 4.3

Nearby places in Indiana

Indiana licenses radon testers and mitigators. The people below appear as Active on the official IPLA license verification search we imported (primary testers, secondary testers, and mitigators). Laboratory testers are not listed here. Read the methodology. Credential status can change.