Radon testing & mitigation in Johnstown, PA

Johnstown sits in Cambria County. In the PA DEP test dataset, 10,172 basement radon tests carry a Johnstown address. Their median was 3.5 pCi/L, and 43% came in at or above EPA's 4 pCi/L action level. Across all of Cambria County it was 43%, and statewide 37%. Even where the average is lower, neighboring houses can test very differently, so every home should be tested.

Johnstown radon test data

Johnstown43%

Cambria Co.43%

Statewide37%

Share of basement tests ≥ 4 pCi/L

3.5median pCi/L

10,172tests on record

2firms 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 Johnstown, then other firms in Cambria County, then mitigation firms in the counties next door. Certified pros often travel, so ask each one whether they cover your street.

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

Firms based in Johnstown (2)

Radon mitigation (reduction systems) (1 firm)

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

Carpenter, Keith

✓ PA DEP certifiedMitigation

Johnstown1 certified person

Address

124 Old Colony Dr, Johnstown, PA
✉ kcarp34@gmail.com

Certified individuals

Carpenter, Keith (mitigation #2037)

DEP cert IDs

mitigation #2037

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

Call (814) 525-0895

Radon testing (1 firm)

Schuller, Eric

✓ PA DEP certifiedTesting

Johnstown1 certified person

Address

337 Russell Ave, Johnstown, PA
✉ uncleerc@gmail.com

Certified individuals

Schuller, Eric (testing #3708)

DEP cert IDs

testing #3708

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

Call (814) 242-4259

Elsewhere in Cambria County (2)

Radon testing (2 firms)

Smith, Jeffrey

✓ PA DEP certifiedTesting

Ebensburg1 certified person

Address

Certified individuals

Smith, Jeffrey (testing #2165)

DEP cert IDs

testing #2165

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

Call (814) 330-9767

Spicher, Timothy

✓ PA DEP certifiedTesting

Nanty Glo1 certified person

Address

239 Fords Corner Rd, Nanty Glo, PA
✉ tim.spicher@newchapterhi.pro

Certified individuals

Spicher, Timothy (testing #3707)

DEP cert IDs

testing #3707

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

Call (814) 826-1123

Mitigation firms in neighboring counties (6)

Helping Solutions LLC

✓ PA DEP certifiedMitigationTestingBlair County

Altoona2 certified people

Address

3499 Kettle Rd, Altoona, PA
✉ helpingsolutions@live.com

Certified individuals

Ake, Justin (testing #2854, mitigation #2854)
Link, Richard (testing #9075)

DEP cert IDs

mitigation #2854 · testing #2854 · testing #3404 · testing #9075

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

Call (814) 934-0905

Blank, Mathew

✓ PA DEP certifiedMitigationWestmoreland County

Trafford1 certified person

Address

120 Loyola Ln, Trafford, PA
✉ precisionradonllc@gmail.com

Certified individuals

Blank, Mathew (mitigation #3696)

DEP cert IDs

mitigation #3696

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

Call (724) 515-9414

Main Street Radon Remediation

✓ PA DEP certifiedMitigationTestingWestmoreland County

Irwin1 certified person

Address

13610 Lincoln Way, Irwin, PA
✉ mainstreetradon@gmail.com

Certified individuals

Warhold, Chad (testing #3689, mitigation #3689)

DEP cert IDs

mitigation #3689 · mitigation #3690 · testing #3689 · testing #3690

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

Call (724) 744-8006

Martin, Alexander

✓ PA DEP certifiedMitigationTestingWestmoreland County

New Florence1 certified person

Address

156 N View Hts, New Florence, PA
✉ martinsradonsolutions@gmail.com

Certified individuals

Martin, Alexander (testing #3631, mitigation #3631)

DEP cert IDs

mitigation #3631 · testing #3631

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

Call (814) 418-7158

Petrill, Jerry A.

✓ PA DEP certifiedMitigationWestmoreland County

Greensburg1 certified person

Address

290 Forbes Trail Rd, Greensburg, PA
✉ gammaenvsvcs@comcast.net

Certified individuals

Petrill, Jerry A. (mitigation #1801)

DEP cert IDs

mitigation #1801

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

Call (724) 289-8632

Restoration Contracting Services In

⚠ Name may be cut off in DEP records

✓ PA DEP certifiedMitigationTestingWestmoreland County

New Kensington3 certified people

Address

720 Anderson St, New Kensington, PA
✉ radonmike@rcsrestoration.com
rcsrestoration.com

Certified individuals

Angelini, Kenneth (mitigation #7534)
Bonura, Jr., Michael (testing #3219, mitigation #3219)
Bonura, Zeke (mitigation #7650)

DEP cert IDs

mitigation #3219 · mitigation #3220 · mitigation #7534 · mitigation #7650 · testing #3219

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

Call (412) 379-3278

Cambria County radon test data

Cambria43%

Statewide37%

Share of basement tests ≥ 4 pCi/L

3.4median basement pCi/L

16,349basement tests on record

#42of 67 PA counties by share ≥ 4

First floor: 22% of 1,016 tests ≥ 4 pCi/L, median 1.5

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 Cambria County listings → · Johnstown radon guide

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