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Radon testing & mitigation in Harrisburg, PA

Harrisburg sits in Dauphin County. In the PA DEP test dataset, 38,427 basement radon tests carry a Harrisburg address. Their median was 4.3 pCi/L, and 52% came in at or above EPA's 4 pCi/L action level. Across all of Dauphin County it was 51%, and statewide 37%. Even where the average is lower, neighboring houses can test very differently, so every home should be tested.

Harrisburg radon test data

Harrisburg52%
Dauphin Co.51%
Statewide37%

Share of basement tests ≥ 4 pCi/L

4.3median pCi/L
38,427tests on record
6firms based here

City figures come from the municipality / mailing-address name in PA DEP's Radon Test Results (computed 2026-10-11). They count tests, not homes.

Below are the PA DEP-certified firms with a business address in Harrisburg, then other firms in Dauphin County, then mitigation firms in the counties next door. Certified pros often travel, so ask each one whether they cover your street.

Read the Harrisburg radon hiring guide → (how to verify certification, questions to ask, costs, FAQ)

Firms based in Harrisburg (6)

Radon mitigation (reduction systems) (4 firms)

Firms certified to install radon reduction systems. Firms that also test are shown here once.

Enviroquest, Inc.

✓ PA DEP certifiedMitigationTesting
Harrisburg4 certified people

Address

Certified individuals

  • Durborow, Brent (testing #9068)
  • Miller, Cory (mitigation #7516)
  • Staz, Iii, John (testing #1512, mitigation #1512)
  • Staz, Michael (mitigation #7227)

DEP cert IDs

mitigation #1512 · mitigation #1725 · mitigation #7227 · mitigation #7516 · testing #1512 · testing #1725 · testing #9068

Source: DEP list DEP list, retrieved 2026-10-11 · Claim, correct or remove this listing

Call (717) 233-6144

Enviroquest, Inc.

✓ PA DEP certifiedMitigation
Harrisburg1 certified person

Address

Certified individuals

  • Durborow, Brent (mitigation #7458)

DEP cert IDs

mitigation #7458

Source: DEP list, retrieved 2026-10-11 · Claim, correct or remove this listing

Call (717) 233-6144

Radon, Joseph

✓ PA DEP certifiedMitigationTesting
Harrisburg1 certified person

Address

Certified individuals

  • Radon, Joseph (testing #1234, mitigation #1234)

DEP cert IDs

mitigation #1234 · testing #1234

Source: DEP list DEP list, retrieved 2026-10-11 · Claim, correct or remove this listing

Call (717) 425-5365

Zzzz Brp Demo Account

✓ PA DEP certifiedMitigationTesting
HarrisburgCertified firm

Address

Certified individuals

  • None listed separately

DEP cert IDs

mitigation #9999 · testing #9999

Source: DEP list DEP list, retrieved 2026-10-11 · Claim, correct or remove this listing

Call (717) 425-5365

Radon testing (1 firm)

Wentz, Brian

✓ PA DEP certifiedTesting
Harrisburg1 certified person

Address

Certified individuals

  • Wentz, Brian (testing #2829)

DEP cert IDs

testing #2829

Source: DEP list, retrieved 2026-10-11 · Claim, correct or remove this listing

Call (717) 540-5970

Radon laboratories (1 firm)

Accustar Labs

✓ PA DEP certifiedLab
Harrisburg2 certified people

Address

Certified individuals

  • Kapturowski, David (lab #1935)
  • Price, Shawn (lab #3583)

DEP cert IDs

lab #1935 · lab #3583

Source: DEP list, retrieved 2026-10-11 · Claim, correct or remove this listing

Call (717) 274-8310

Elsewhere in Dauphin County (3)

Radon mitigation (reduction systems) (1 firm)

Firms certified to install radon reduction systems. Firms that also test are shown here once.

Sipe, Steven

✓ PA DEP certifiedMitigationTesting
Halifax1 certified person

Address

Certified individuals

  • Sipe, Steven (testing #3287, mitigation #3287)

DEP cert IDs

mitigation #3287 · testing #3287

Source: DEP list DEP list, retrieved 2026-10-11 · Claim, correct or remove this listing

Call (717) 425-0989

Radon testing (2 firms)

Matteson, Chris

✓ PA DEP certifiedTesting
Hershey1 certified person

Address

Certified individuals

  • Matteson, Chris (testing #2337)

DEP cert IDs

testing #2337

Source: DEP list, retrieved 2026-10-11 · Claim, correct or remove this listing

Call (717) 583-2914

Biechler, Michael

✓ PA DEP certifiedTesting
Middletown1 certified person

Address

Certified individuals

  • Biechler, Michael (testing #2102)

DEP cert IDs

testing #2102

Source: DEP list, retrieved 2026-10-11 · Claim, correct or remove this listing

Call (717) 364-0060

Mitigation firms in neighboring counties (13)

American Radon Solutions, Inc.

✓ PA DEP certifiedMitigationCumberland County
Camp Hill2 certified people

Address

Certified individuals

  • Nguyen, Cuong (mitigation #7058)
  • Nguyen, Tuan (mitigation #1419)

DEP cert IDs

mitigation #1418 · mitigation #1419 · mitigation #7058

Source: DEP list, retrieved 2026-10-11 · Claim, correct or remove this listing

Call (717) 795-9367

Precision Inspections & Radon Solutions

✓ PA DEP certifiedMitigationTestingCumberland County
Mechanicsburg4 certified people

Certified individuals

  • Ling, Jeremy (testing #8493, mitigation #2404)
  • Ling, Selena (testing #3104)
  • Pealer, Connor (mitigation #7544)
  • Price, Michael (testing #8909)

DEP cert IDs

mitigation #2404 · mitigation #3355 · mitigation #7544 · testing #3104 · testing #3105 · testing #8493 · testing #8909

Source: DEP list DEP list, retrieved 2026-10-11 · Claim, correct or remove this listing

Call (717) 763-1373

Ro, Jooik

✓ PA DEP certifiedMitigationTestingCumberland County
Carlisle1 certified person

Address

Certified individuals

  • Ro, Jooik (testing #2760, mitigation #2760)

DEP cert IDs

mitigation #2760 · testing #2760

Source: DEP list DEP list, retrieved 2026-10-11 · Claim, correct or remove this listing

Call (717) 226-7179

Sheely, Mike

✓ PA DEP certifiedMitigationCumberland County
Enola1 certified person

Address

Certified individuals

  • Sheely, Mike (mitigation #2691)

DEP cert IDs

mitigation #2691

Source: DEP list, retrieved 2026-10-11 · Claim, correct or remove this listing

Call (717) 732-6538

Fritsch, Andrew

✓ PA DEP certifiedMitigationLancaster County
Ephrata1 certified person

Address

Certified individuals

  • Fritsch, Andrew (mitigation #3541)

DEP cert IDs

mitigation #3541

Source: DEP list, retrieved 2026-10-11 · Claim, correct or remove this listing

Call (717) 949-2011

Jk Mechanical Inc

✓ PA DEP certifiedMitigationTestingLancaster County
Willow Street3 certified people

Address

Certified individuals

  • Salvatore, Alexander (mitigation #7729)
  • Salvatore, Andrew (mitigation #7730)
  • Shimp, Brian (testing #3747, mitigation #3747)

DEP cert IDs

mitigation #3747 · mitigation #3748 · mitigation #7729 · mitigation #7730 · testing #3747

Source: DEP list DEP list, retrieved 2026-10-11 · Claim, correct or remove this listing

Call (717) 464-0111

Rjh Radon Mitigation Inc

✓ PA DEP certifiedMitigationLancaster County
Akron2 certified people

Address

Certified individuals

  • Hoffman, Elliot (mitigation #3058)
  • Sauder, Keith (mitigation #7582)

DEP cert IDs

mitigation #0565 · mitigation #3058 · mitigation #7582

Source: DEP list, retrieved 2026-10-11 · Claim, correct or remove this listing

Call (717) 859-6996

M Webster Construction Inc

✓ PA DEP certifiedMitigationTestingLebanon County
Lebanon3 certified people

Certified individuals

  • Lerch, Jarrod (mitigation #7309)
  • Webster, Mark (mitigation #7308)
  • Webster, Michael (testing #2948, mitigation #2948)

DEP cert IDs

mitigation #2948 · mitigation #3064 · mitigation #7308 · mitigation #7309 · testing #2948

Source: DEP list DEP list, retrieved 2026-10-11 · Claim, correct or remove this listing

Call (717) 274-3158

Verna, Sr., Edward

✓ PA DEP certifiedMitigationLebanon County
Lebanon1 certified person

Address

Certified individuals

  • Verna, Sr., Edward (mitigation #2231)

DEP cert IDs

mitigation #2231

Source: DEP list, retrieved 2026-10-11 · Claim, correct or remove this listing

Call (717) 274-2541

Rossi, James

✓ PA DEP certifiedMitigationSchuylkill County
Pine Grove1 certified person

Address

Certified individuals

  • Rossi, James (mitigation #2893)

DEP cert IDs

mitigation #2893

Source: DEP list, retrieved 2026-10-11 · Claim, correct or remove this listing

Call (570) 345-6515

Absolute Radon Mitigation, LLC

✓ PA DEP certifiedMitigationTestingYork County
York2 certified people

Address

Certified individuals

  • Richard, Troy (mitigation #7244)
  • Schlaline, Jeffrey (testing #1965, mitigation #1965)

DEP cert IDs

mitigation #1965 · mitigation #1966 · mitigation #7244 · testing #1965

Source: DEP list DEP list, retrieved 2026-10-11 · Claim, correct or remove this listing

Call (717) 755-5398

Levine, Seymour

✓ PA DEP certifiedMitigationTestingYork County
New Cumberland1 certified person

Address

Certified individuals

  • Levine, Seymour (testing #2735, mitigation #2735)

DEP cert IDs

mitigation #2735 · testing #2735

Source: DEP list DEP list, retrieved 2026-10-11 · Claim, correct or remove this listing

Call (717) 576-9589

Meyer, Jr., Robert

✓ PA DEP certifiedMitigationTestingYork County
Wellsville1 certified person

Address

Certified individuals

  • Meyer, Jr., Robert (testing #1800, mitigation #1800)

DEP cert IDs

mitigation #1800 · testing #1800

Source: DEP list DEP list, retrieved 2026-10-11 · Claim, correct or remove this listing

Call (717) 432-9575

Dauphin County radon test data

Dauphin51%
Statewide37%

Share of basement tests ≥ 4 pCi/L

4.1median basement pCi/L
67,255basement tests on record
#19of 67 PA counties by share ≥ 4

First floor: 24% of 19,267 tests ≥ 4 pCi/L, median 1.4

Source: computed 2026-10-11 from PA DEP's Radon Test Results, Sept 1986 - Current (data.pa.gov, public domain). Counts tests, not homes: repeat and post-mitigation tests are included. Only a test tells you your home's level.

All Dauphin County listings → · Harrisburg radon guide

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