Radon testing & mitigation in State College, PA
State College sits in Centre County. In the PA DEP test dataset, 23,460 basement radon tests carry a State College address. Their median was 4.8 pCi/L, and 55% came in at or above EPA's 4 pCi/L action level. Across all of Centre County it was 56%, and statewide 37%. Even where the average is lower, neighboring houses can test very differently, so every home should be tested.
State College radon test data
Share of basement tests ≥ 4 pCi/L
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 State College, then other firms in Centre County, then mitigation firms in the counties next door. Certified pros often travel, so ask each one whether they cover your street.
Read the State College radon hiring guide → (how to verify certification, questions to ask, costs, FAQ)
Firms based in State College (1)
Radon testing (1 firm)
Todd Giddings & As
⚠ Name may be cut off in DEP records✓ PA DEP certifiedTestingState College1 certified person
Todd Giddings & As
Address
- 3049 Enterprise Drive, State College, PA
Certified individuals
- Giddings, Todd (testing #8453)
DEP cert IDs
Source: DEP list, retrieved 2026-10-11 · Claim, correct or remove this listing
Elsewhere in Centre County (3)
Radon mitigation (reduction systems) (3 firms)
Firms certified to install radon reduction systems. Firms that also test are shown here once.
Mckee Environmental, Inc.
✓ PA DEP certifiedMitigationTestingBellefonte2 certified people
Mckee Environmental, Inc.
✓ PA DEP certifiedMitigationTestingAddress
- 86 Quartz Dr, Bellefonte, PA
- ✉ dougmckee13@gmail.com
Certified individuals
- Mckee, Douglas (testing #3484, mitigation #3484)
- Mckee, Jillian (testing #9103)
DEP cert IDs
Source: DEP list DEP list, retrieved 2026-10-11 · Claim, correct or remove this listing
Oak Leaf Environmental
✓ PA DEP certifiedMitigationTestingCentre Hall1 certified person
Oak Leaf Environmental
✓ PA DEP certifiedMitigationTestingAddress
- 409 S Pennsylvania Ave, Centre Hall, PA
- ✉ tom@oakleafenv.com
- oakleafenv.com
Certified individuals
- Wilkins, Thomas (testing #3726, mitigation #3726)
DEP cert IDs
Source: DEP list DEP list, retrieved 2026-10-11 · Claim, correct or remove this listing
Glantz, Frank
✓ PA DEP certifiedMitigationLemont1 certified person
Glantz, Frank
✓ PA DEP certifiedMitigationAddress
- Po Box 866, Lemont, PA
- ✉ frank@raid-on-radon.com
- raid-on-radon.com
Certified individuals
- Glantz, Frank (mitigation #2135)
DEP cert IDs
Source: DEP list, retrieved 2026-10-11 · Claim, correct or remove this listing
Mitigation firms in neighboring counties (2)
Helping Solutions LLC
✓ PA DEP certifiedMitigationTestingBlair CountyAltoona2 certified people
Helping Solutions LLC
✓ PA DEP certifiedMitigationTestingBlair CountyAddress
- 3499 Kettle Rd, Altoona, PA
- ✉ helpingsolutions@live.com
Certified individuals
- Ake, Justin (testing #2854, mitigation #2854)
- Link, Richard (testing #9075)
DEP cert IDs
Source: DEP list DEP list, retrieved 2026-10-11 · Claim, correct or remove this listing
Conklin, George, Iv
✓ PA DEP certifiedMitigationClinton CountyLoganton1 certified person
Conklin, George, Iv
✓ PA DEP certifiedMitigationClinton CountyAddress
- 1351 W Winter Rd, Loganton, PA
- ✉ gconk23@cs.com
Certified individuals
- Conklin, George, Iv (mitigation #2769)
DEP cert IDs
Source: DEP list, retrieved 2026-10-11 · Claim, correct or remove this listing
Centre County radon test data
Share of basement tests ≥ 4 pCi/L
First floor: 42% of 5,125 tests ≥ 4 pCi/L, median 3.2
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.