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

§ 4.1 — Beaverton, OR

Certified radon testing in Beaverton, OR

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

Last verified August 29, 2026. Methodology NRPP. NRSB.

Certified radon testingCertified radon mitigation

  1. Daniel R Doty

    Room By Room Home Inspection Services Llc

    current NRPP № 113263

    testing

    (971) 393-7739August 29, 2026cite ↗

  2. Joshua Doebler

    Accuguard Environmental

    current NRSB № RMS-24MS084

    testing

    August 29, 2026cite ↗

  3. Nicholas Larsen

    Accuguard Environmental

    current NRSB № RMS-24MS081

    testing

    August 29, 2026cite ↗

  4. Richard A. Cason

    Alpha Environmental Services, Inc.

    current NRPP № 103186

    mitigation, testing

    (503) 292-5346August 29, 2026cite ↗

  5. Sam Deliso

    Environmental Works, Llc

    current NRPP № 112037

    testing

    (520) 312-2447August 29, 2026cite ↗
Fig. 4 — Beaverton, OR, 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 Oregon

Oregon 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 Oregon license. Some states require a separate state credential to work legally. Read the methodology. Credential status can change.