Best Radon Testing in Union County, PA
Compare 10 local radon testing providers in Union County. Verified listings with real contact info.
10 services listed
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Radon Guys, LLC
714 Bowersox Rd, Middleburg, PA 17842
Monday: 9:30 AM – 5:30 PM | Tuesday: 9:30 AM – 5:30 PM | Wednesday: 9:30 AM – 5:30 PM | Thursday: 9:30 AM – 5:30 PM | Friday: Closed | Saturday: Closed | Sunday: Closed
5 ★
4 reviews
Water Guard Innovations LLC
1070 Penn St, Milton, PA 17847
Monday: Open 24 hours | Tuesday: Open 24 hours | Wednesday: Open 24 hours | Thursday: Open 24 hours | Friday: Open 24 hours | Saturday: Open 24 hours | Sunday: Open 24 hours
5 ★
1 reviews
CSI Inspections LLC
Queen St, Northumberland, PA 17857
Monday: 8:00 AM – 6:00 PM | Tuesday: 8:00 AM – 6:00 PM | Wednesday: 8:00 AM – 6:00 PM | Thursday: 8:00 AM – 6:00 PM | Friday: 8:00 AM – 6:00 PM | Saturday: Open 24 hours | Sunday: Open 24 hours
4.8 ★
25 reviews
JCN Radon Services, Inc.
1911 Poco Farm Rd, Williamsport, PA 17701
Monday: Closed | Tuesday: 8:00 AM – 5:00 PM | Wednesday: 8:00 AM – 5:00 PM | Thursday: 8:00 AM – 5:00 PM | Friday: 8:00 AM – 5:00 PM | Saturday: 8:00 AM – 5:00 PM | Sunday: Closed
5 ★
1 reviews
West Branch Inspections, LLC
Round Top Rd, Montoursville, PA 17754
Monday: 8:00 AM – 5:00 PM | Tuesday: 8:00 AM – 5:00 PM | Wednesday: 8:00 AM – 5:00 PM | Thursday: 8:00 AM – 5:00 PM | Friday: 8:00 AM – 5:00 PM | Saturday: Closed | Sunday: Closed
5 ★
212 reviews
PA Radon Solutions
420 Valley Rd, Bloomsburg, PA 17815
Monday: 8:00 AM – 4:00 PM | Tuesday: 8:00 AM – 4:00 PM | Wednesday: 8:00 AM – 4:00 PM | Thursday: 8:00 AM – 4:00 PM | Friday: 8:00 AM – 4:00 PM | Saturday: 7:00 AM – 5:00 PM | Sunday: 7:00 AM – 5:00 PM
5 ★
5 reviews
Rock House Inspections
203 Hogs Back Rd, Millville, PA 17846
Monday: 9:00 AM – 5:00 PM | Tuesday: 9:00 AM – 5:00 PM | Wednesday: 9:00 AM – 5:00 PM | Thursday: 9:00 AM – 5:00 PM | Friday: 9:00 AM – 5:00 PM | Saturday: Closed | Sunday: Closed
5 ★
292 reviews
Oak Leaf Environmental
409 S Pennsylvania Ave Suite 100, Centre Hall, PA 16828
Monday: 7:30 AM – 5:00 PM | Tuesday: 7:30 AM – 5:00 PM | Wednesday: 7:30 AM – 5:00 PM | Thursday: 7:30 AM – 5:00 PM | Friday: 7:30 AM – 5:00 PM | Saturday: Closed | Sunday: Closed
5 ★
46 reviews
McKee Environmental
86 Quartz Dr, Bellefonte, PA 16823
Monday: 7:00 AM – 7:00 PM | Tuesday: 7:00 AM – 7:00 PM | Wednesday: 7:00 AM – 7:00 PM | Thursday: 7:00 AM – 7:00 PM | Friday: 7:00 AM – 7:00 PM | Saturday: 7:00 AM – 7:00 PM | Sunday: 7:00 AM – 7:00 PM
5 ★
40 reviews
Frequently Asked Questions
How much does radon testing cost in Pennsylvania?
Professional radon testing in Pennsylvania typically costs $150 to $300. Short-term tests (48 hours) are standard for real estate transactions. Long-term tests (90+ days) provide a more accurate annual average. The PA DEP also offers free DIY radon test kits to Pennsylvania residents through their website.
Why is radon testing so important in Pennsylvania?
Pennsylvania has some of the highest indoor radon levels in the United States. The PA DEP estimates that about 40% of homes exceed the EPA's recommended action level of 4 pCi/L. Every county in the state has homes with elevated radon. The PA DEP and EPA strongly recommend testing every home, regardless of location.
Are radon testers required to be certified in Pennsylvania?
Yes, Pennsylvania requires radon testers to be certified by the PA DEP under the Radon Certification Act. Certified testers must complete approved training, pass an exam, and follow PA DEP testing protocols. For real estate transactions, only a PA DEP-certified tester's results are accepted by lenders.
What happens if my home has high radon levels?
If radon levels exceed 4 pCi/L, the EPA recommends installing a radon mitigation system. The most common approach is sub-slab depressurization, which uses a fan and pipe to vent radon from beneath the foundation to the outside. Mitigation in Pennsylvania typically costs $800 to $1,500 and reduces radon levels by up to 99%.
When should I test for radon in Pennsylvania?
Test when buying or selling a home, after major renovations that alter the foundation, if you've never tested, or if your last test was more than 2 years ago. Testing is best done during the heating season (October through March) when windows are typically closed and radon levels tend to be highest.