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

§ 4.1 — Douglas County, KS

Certified radon testing in Douglas County, KS

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

Last verified August 29, 2026. Methodology KS KDHE.

Certified radon testingCertified radon mitigation

  1. Basso, Austin

    Green Factor Insulation

    current KS KDHE № KS-MS-0714

    testing

    7852569443August 29, 2026cite ↗

  2. Boyle, Brent

    Ad Astra Home Inspections

    current KS KDHE № KS-MS-0424

    testing

    7853935527August 29, 2026cite ↗

  3. Bulmer, Brandon

    Bulmer Environmental Solutions

    current KS KDHE № KS-MS-0606 / KS-MI-0244

    mitigation, testing

    7859793082August 29, 2026cite ↗

  4. Clayton, Andrew

    Guidewire Consulting Llc

    current KS KDHE № KS-MS-0406

    testing

    August 29, 2026cite ↗

  5. Darnell, Hank

    Hank Darnell Home Inspections

    current KS KDHE № KS-MS-0411

    testing

    785-248-3439August 29, 2026cite ↗

  6. Davis, James

    Guidewire Consulting

    current KS KDHE № KS-MS-0675

    testing

    7855502716August 29, 2026cite ↗

  7. Haas, Pamela

    Green Factor Insulation

    current KS KDHE № KS-MS-0715

    testing

    7852569443August 29, 2026cite ↗

  8. Haddadi, Daniel

    Partner Engineering & Science

    current KS KDHE № KS-MS-0470

    testing

    7855502188August 29, 2026cite ↗

  9. Larue, Brett

    Larue Inspection Service Llc

    current KS KDHE № KS-MS-0444

    testing

    7856151337August 29, 2026cite ↗

  10. Macke, Justin

    Green Factor Insulation

    current KS KDHE № KS-MS-0593 / KS-MI-0239

    mitigation, testing

    7852569443August 29, 2026cite ↗

  11. Quick, Madeleine

    Nova Group, Gbc

    current KS KDHE № KS-MS-0658

    testing

    9133136567August 29, 2026cite ↗

  12. Smith, Patrick

    McKinney Home Inspection

    current KS KDHE № KS-MS-0262

    testing

    785-760-4600August 29, 2026cite ↗
Fig. 4 — Douglas County, KS, approximate. Pin is the county 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 Kansas

Kansas KDHE certifies radon measurement and mitigation technicians. The people below appear on the certified technician PDF we imported, listed under the county of the business address on that file. Read the methodology. Credential status can change.