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An independent directory built from Pennsylvania DEP certification recordsLists dated Oct 1, 2026 · About our data
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Radon testing & mitigation in Butler County, PA

47% of basement tests here came back at or above 4 pCi/L, well above the statewide 37%. That means about one in 2 homes tested needs a fix.

Butler County radon test data

Butler47%
Statewide37%

Share of basement tests ≥ 4 pCi/L

3.6median basement pCi/L
45,628basement tests on record
#32of 67 PA counties by share ≥ 4

First floor: 30% of 3,207 tests ≥ 4 pCi/L, median 2.2

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.

12 DEP-certified firms have a business address in Butler County (1 offer mitigation), with 25 certified individuals between them. Get free quotes

Radon mitigation (reduction systems) (1 firm)

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

Kennihan Plumbing And Heating Inc

✓ PA DEP certifiedMitigation
Valencia4 certified people

Address

Certified individuals

  • Himme, Gregory L. (mitigation #7632)
  • Kennihan, Jerome (mitigation #7719)
  • Kennihan, William (mitigation #3535)
  • Tosi, Zachary C. (mitigation #7630)

DEP cert IDs

mitigation #3535 · mitigation #3536 · mitigation #7630 · mitigation #7632 · mitigation #7719

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

Call (724) 898-2587

Radon testing (11 firms)

Supik, Joshua

✓ PA DEP certifiedTesting
Cabot1 certified person

Address

Certified individuals

  • Supik, Joshua (testing #3320)

DEP cert IDs

testing #3320

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

Call (724) 994-0333

Cei/Housemaster Home Inspections

✓ PA DEP certifiedTesting
Cranberry Townsh8 certified people

Address

Certified individuals

  • Ayers, Dan (testing #3385)
  • Cilik, Ivan (testing #2873)
  • Crane, Fred (testing #8327)
  • Crane, Kevin (testing #2011)
  • Laporta, Jr., Ronald (testing #3327)
  • Marlier, Steven (testing #9096)
  • Polczynski, Scott (testing #8838)
  • Richardson, Jr., George (testing #8664)

DEP cert IDs

testing #1230 · testing #2011 · testing #2012 · testing #2873 · testing #3327 · testing #3385 · testing #8327 · testing #8664 · testing #8838 · testing #9096

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

Call (724) 772-5593

Ecs Mid-Atlantic LLC

✓ PA DEP certifiedTesting
Cranberry Townsh3 certified people

Address

Certified individuals

  • Behrens, Brian (testing #3763)
  • Swick, Ariana (testing #9148)
  • Wolf, Jamie (testing #9147)

DEP cert IDs

testing #3275 · testing #3763 · testing #9147 · testing #9148

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

Call (412) 206-1470

Staniland, William

✓ PA DEP certifiedTesting
Cranberry Townsh1 certified person

Address

Certified individuals

  • Staniland, William (testing #2734)

DEP cert IDs

testing #2734

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

Call (724) 742-2776

West, Aaron

✓ PA DEP certifiedTesting
Cranberry Townsh1 certified person

Address

Certified individuals

  • West, Aaron (testing #3709)

DEP cert IDs

testing #3709

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

Call (412) 204-6149

Amerispec Home In

⚠ Name may be cut off in DEP records
✓ PA DEP certifiedTesting
Harmony3 certified people

Address

Certified individuals

  • Campbell, Jason (testing #8896)
  • Onega, Richard N (testing #8729)
  • Peffer, Leonard (testing #8897)

DEP cert IDs

testing #8729 · testing #8896 · testing #8897

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

Call (724) 452-5025

Onega LLC

✓ PA DEP certifiedTesting
HarmonyCertified firm

Address

Certified individuals

  • None listed separately

DEP cert IDs

testing #2522

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

Call (724) 452-5025

Onega LLC

✓ PA DEP certifiedTesting
Harmony1 certified person

Address

Certified individuals

  • Onega, Richard (testing #2386)

DEP cert IDs

testing #2386

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

Call (724) 452-5025

Kampi, Brian

✓ PA DEP certifiedTesting
Mars1 certified person

Address

Certified individuals

  • Kampi, Brian (testing #2618)

DEP cert IDs

testing #2618

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

Call (412) 367-0707

Ritenour, Shelbi

✓ PA DEP certifiedTesting
Saxonburg1 certified person

Address

Certified individuals

  • Ritenour, Shelbi (testing #3562)

DEP cert IDs

testing #3562

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

Call (724) 504-3804

Barto, Richard

✓ PA DEP certifiedTesting
Slippery Rock1 certified person

Address

Certified individuals

  • Barto, Richard (testing #2477)

DEP cert IDs

testing #2477

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

Call (724) 504-2746

Neighboring counties

Allegheny (44 firms) · Armstrong (2 firms) · Beaver (6 firms) · Clarion (0 firms) · Lawrence (2 firms) · Mercer (0 firms) · Venango (2 firms). Firms often serve across county lines.

Adjacency from U.S. Census Bureau county adjacency file.

City pages & guides

Cranberry Township (guide)

Hiring a radon pro in Butler County: quick guide

With 47% of 45,628 basement tests at or above 4 pCi/L (above the 37% statewide share), Butler County has 1 DEP-certified mitigation firm based locally.

Detailed local guides: How to find a radon expert in Cranberry Township

Frequently asked questions

How many certified radon mitigation firms are in Butler County?

1 DEP-certified firms offering mitigation and 12 certified radon firms in total list a business address in Butler County (PA DEP lists dated 10/01/2026). Firms from neighboring counties may also serve the area.

What share of Butler County radon tests are high?

47% of 45,628 basement tests in PA DEP's records were at or above EPA's 4 pCi/L action level, with a median of 3.6 pCi/L.

How much does radon mitigation cost in Butler County?

We don't have county-specific price data. A national cost guide reports typical installs at $786-$1,274. Get written quotes from DEP-certified mitigators.

Want firms to contact you?One request to Butler mitigatorsRequest quotes