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Radon testing & mitigation in Lancaster, PA

Lancaster sits in Lancaster County. In the PA DEP test dataset, 37,640 basement radon tests carry a Lancaster address. Their median was 4.1 pCi/L, and 51% came in at or above EPA's 4 pCi/L action level. Across all of Lancaster County it was 55%, and statewide 37%. Even where the average is lower, neighboring houses can test very differently, so every home should be tested.

Lancaster radon test data

Lancaster51%
Lancaster Co.55%
Statewide37%

Share of basement tests ≥ 4 pCi/L

4.1median pCi/L
37,640tests on record
1firms 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 Lancaster, then other firms in Lancaster County, then mitigation firms in the counties next door. Certified pros often travel, so ask each one whether they cover your street.

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

Firms based in Lancaster (1)

Radon testing (1 firm)

Precise Inspecting

✓ PA DEP certifiedTesting
Lancaster2 certified people

Address

Certified individuals

  • Haughery, Bill (testing #3295)
  • Haughery, Matt (testing #8900)

DEP cert IDs

testing #3295 · testing #3445 · testing #8900

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

Call (717) 808-5997

Elsewhere in Lancaster County (8)

Radon mitigation (reduction systems) (3 firms)

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

Rjh Radon Mitigation Inc

✓ PA DEP certifiedMitigation
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

Fritsch, Andrew

✓ PA DEP certifiedMitigation
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 certifiedMitigationTesting
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

Radon testing (5 firms)

Muehling, Matthew

✓ PA DEP certifiedTesting
Elizabethtown1 certified person

Address

Certified individuals

  • Muehling, Matthew (testing #2795)

DEP cert IDs

testing #2795

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

Call (717) 330-5658

Carrozza, Jr., Anthony

✓ PA DEP certifiedTesting
Mount Joy1 certified person

Address

Certified individuals

  • Carrozza, Jr., Anthony (testing #2858)

DEP cert IDs

testing #2858

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

Call (717) 490-1126

Risk, Douglas

✓ PA DEP certifiedTesting
Peach Bottom1 certified person

Address

Certified individuals

  • Risk, Douglas (testing #3599)

DEP cert IDs

testing #3599

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

Call (717) 519-7845

Schmidt Iii, Wolfgang

✓ PA DEP certifiedTesting
Quarryville1 certified person

Address

Certified individuals

  • Schmidt Iii, Wolfgang (testing #3743)

DEP cert IDs

testing #3743

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

Call (717) 290-6777

Angelucci, Thomas

✓ PA DEP certifiedTesting
Stevens1 certified person

Address

Certified individuals

  • Angelucci, Thomas (testing #3283)

DEP cert IDs

testing #3283

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

Call (717) 413-4582

Mitigation firms in neighboring counties (17)

Podolecki, Piotr

✓ PA DEP certifiedMitigationBerks County
Alburtis1 certified person

Address

Certified individuals

  • Podolecki, Piotr (mitigation #2885)

DEP cert IDs

mitigation #2885

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

Call (484) 547-3496

Rogers, Keith

✓ PA DEP certifiedMitigationBerks County
Douglassville1 certified person

Address

Certified individuals

  • Rogers, Keith (mitigation #3540)

DEP cert IDs

mitigation #3540

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

Call (610) 575-2775

S. J. Watras Inc

✓ PA DEP certifiedMitigationBerks County
Boyertown1 certified person

Address

Certified individuals

  • Cameron, Paul (mitigation #7579)

DEP cert IDs

mitigation #7579

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

Call (610) 367-5005

S. J. Watras, Inc.

✓ PA DEP certifiedMitigationTestingBerks County
Boyertown3 certified people

Address

Certified individuals

  • Berry, James (mitigation #7580)
  • Watras, Michael (mitigation #7111)
  • Watras, Stanley J. (testing #1056, mitigation #1056)

DEP cert IDs

mitigation #1056 · mitigation #1057 · mitigation #7111 · mitigation #7580 · testing #1056 · testing #1057

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

Call (610) 367-5005

Conrad, Spencer

✓ PA DEP certifiedMitigationTestingChester County
Phoenixville1 certified person

Address

Certified individuals

  • Conrad, Spencer (testing #3020, mitigation #3020)

DEP cert IDs

mitigation #3020 · testing #3020

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

Call (570) 573-8159

Gutridge Inspections

✓ PA DEP certifiedMitigationTestingChester County
Pottstown1 certified person

Address

Certified individuals

  • Gutridge, Charles (testing #2973, mitigation #2973)

DEP cert IDs

mitigation #2973 · testing #2973

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

Call (610) 385-3339

Safe Shelter Environmental

✓ PA DEP certifiedMitigationTestingChester County
West Chester6 certified people

Address

Certified individuals

  • Batten Jr, Joseph (testing #3525, mitigation #3525)
  • Fisicaro, Jesse (mitigation #7713)
  • Fletcher, Steven (mitigation #7715)
  • Grant, Joseph (mitigation #7717)
  • Hughes, Kareem (mitigation #7716)
  • Tavoni, Matthew (mitigation #7714)

DEP cert IDs

mitigation #0207 · mitigation #3525 · mitigation #7713 · mitigation #7714 · mitigation #7715 · mitigation #7716 · mitigation #7717 · testing #0207 · testing #3525

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

Call (610) 594-0350

Enviroquest, Inc.

✓ PA DEP certifiedMitigationTestingDauphin County
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 certifiedMitigationDauphin County
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 certifiedMitigationTestingDauphin County
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

Sipe, Steven

✓ PA DEP certifiedMitigationTestingDauphin County
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

Zzzz Brp Demo Account

✓ PA DEP certifiedMitigationTestingDauphin County
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

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

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

Lancaster County radon test data

Lancaster55%
Statewide37%

Share of basement tests ≥ 4 pCi/L

4.7median basement pCi/L
109,372basement tests on record
#13of 67 PA counties by share ≥ 4

First floor: 39% of 14,553 tests ≥ 4 pCi/L, median 2.7

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 Lancaster County listings → · Lancaster radon guide

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