Radon testing & mitigation in Lycoming County, PA
46% 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.
Lycoming County radon test data
Share of basement tests ≥ 4 pCi/L
First floor: 21% of 2,844 tests ≥ 4 pCi/L, median 1.6
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.
2 DEP-certified firms have a business address in Lycoming County (1 offer mitigation), with 2 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.
Jcn Radon Services Inc
✓ PA DEP certifiedMitigationTestingWilliamsport1 certified person
Jcn Radon Services Inc
✓ PA DEP certifiedMitigationTestingAddress
- 1911 Poco Farm Rd, Williamsport, PA
- ✉ jcnradonservices@gmail.com
Certified individuals
- Stiger, Timothy E. (testing #3518, mitigation #3518)
DEP cert IDs
Source: DEP list DEP list, retrieved 2026-10-11 · Claim, correct or remove this listing
Radon testing (1 firm)
Mcclain, Joshua
✓ PA DEP certifiedTestingMontoursville1 certified person
Mcclain, Joshua
✓ PA DEP certifiedTestingAddress
- 1921 Round Top Rd, Montoursville, PA
- ✉ josh@wbinspections.com
- wbinspections.com
Certified individuals
- Mcclain, Joshua (testing #3414)
DEP cert IDs
Source: DEP list, retrieved 2026-10-11 · Claim, correct or remove this listing
Neighboring counties
Bradford (1 firms) · Clinton (2 firms) · Columbia (2 firms) · Montour (0 firms) · Northumberland (1 firms) · Potter (0 firms) · Sullivan (0 firms) · Tioga (1 firms) · Union (1 firms). Firms often serve across county lines.
Adjacency from U.S. Census Bureau county adjacency file.
City pages & guides
Hiring a radon pro in Lycoming County: quick guide
With 46% of 15,471 basement tests at or above 4 pCi/L (above the 37% statewide share), Lycoming County has 1 DEP-certified mitigation firm based locally.
- Verify: check the firm in the PA DEP Radon Services Directory, ask for the DEP ID (25 Pa. Code Chapter 240), or call 800-237-2366.
- Typical cost: $786-$1,274 for a mitigation system, national range from the HomeAdvisor cost guide.
- Selling or buying: PA's seller disclosure form asks about known radon and past tests (49 Pa. Code § 35.335a).
Detailed local guides: How to find a radon expert in Williamsport
Frequently asked questions
How many certified radon mitigation firms are in Lycoming County?
1 DEP-certified firms offering mitigation and 2 certified radon firms in total list a business address in Lycoming County (PA DEP lists dated 10/01/2026). Firms from neighboring counties may also serve the area.
What share of Lycoming County radon tests are high?
46% of 15,471 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 Lycoming 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.