Professional Radon Testing in Philadelphia
Independent, PA DEP-certified testing for homeowners and real estate transactions—with objective results, clear reporting, and no mitigation sales.
PA DEP Certification #3746 • Independent Testing Only • Clear Digital Reports
Residential Radon Testing — $199
Real Estate Transaction Testing — $225
STEP 01
Request Your Test
Send your property details and preferred timing through our simple request form.
How Radon Testing Works
A straightforward testing process, clear communication, and independent results.
STEP 02
Confirm & Test
We’ll confirm availability and coordinate professional device placement and retrieval.
STEP 03
Receive Clear Results
Receive a clear digital report and personal guidance on what your results mean.
Why Choose
Liberty Radon Diagnostics
With five years of radon-industry experience, Liberty Radon Diagnostics brings practical knowledge of testing conditions and building characteristics to every project. Because Liberty provides testing only—not mitigation—results and guidance are never tied to the sale of a system. Every test follows documented QA/QC procedures for clear, reliable reporting.
Independent Testing—No Mitigation Sales
5+ Years of Radon Industry Experience
PA DEP Certification #3746
"We don’t fix the problem. We measure it"
Client Feedback
★★★★★
Moises was super helpful, very responsive, and a pleasure to work with. Highly recommend using them for radon testing!
Jordan B.
Springfield Pa
★★★★★
We got our basement tested after some recent basement repairs - more exposure to some underground earth. Moises was professional, efficient and extremely meticulous. He explained everything very clearly and we had our results from the PA Dept of Environmental Protection in a timely manner. Highly recommend and would hire again!
Amy L.
Philadelphia Pa
★★★★★
Moises was professional, he arrived at the set time of our appointment, he was very knowledgeable. I would definitely recommend his services to family and friends.
Alex C.
Philadelphia Pa
Verified Google Reviews
How Radon Enters Your Home
Warm air rising through a home can create lower pressure near the foundation. This “stack effect” may draw radon from the soil through cracks and openings in basement floors and foundation walls.
Philadelphia-area homes—especially older rowhomes with stone or masonry foundations—may have multiple entry points. Because radon is invisible and odorless, testing is the only way to know whether indoor levels are elevated.
Invisible & Odorless
Radon cannot be seen, smelled, or tasted. Testing is the only way to determine whether indoor levels are elevated.
Radon Enters Through Foundation Cracks
Radon can enter through floor and wall cracks, sump pits, pipe openings, and porous foundation materials.
A Serious Health Risk
Radon is the second leading cause of lung cancer in the United States. EPA estimates it is associated with about 21,000 deaths each year.
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Philadelphia
Independent radon testing for rowhomes, townhomes, condos, and single-family homes throughout Philadelphia.
Independent radon testing for homeowners and real estate transactions across Philadelphia, the Main Line, and nearby Pennsylvania communities.
Serving Philadelphia & Surrounding Communities
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The Main Line
Professional testing for homeowners, buyers, and active real estate transactions across the Main Line.
Nearby Pennsylvania Communities
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Service availability for surrounding Pennsylvania communities based on property location and scheduling.
Independent Testing. Documented Integrity.
Liberty Radon Diagnostics focuses exclusively on radon measurement and diagnostics — never repair sales. Every test follows structured QA/QC procedures designed to support accurate, transparent, and unbiased reporting for Philadelphia-area homeowners.
Independent Measurement Only
No repair sales, no pressure, and no conflict-driven recommendations.
QA/QC Documented
Structured quality assurance procedures help ensure reliable, repeatable testing practices.
Lab-Certified Analysis
Results supported through certified laboratory analysis and documented chain-of-custody procedures.
Philadelphia-Focused
Built for local homes, rowhomes, basements, and regional radon conditions.
