Best Radon Testing in Northampton County, PA
Compare 15 local radon testing providers in Northampton County. Verified listings with real contact info.
15 services listed
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Solid Rock Home Inspection
772 Golden Eagle Dr, Nazareth, PA 18064
Monday: 8:00 AM – 9:00 PM | Tuesday: 8:00 AM – 9:00 PM | Wednesday: 8:00 AM – 9:00 PM | Thursday: 8:00 AM – 9:00 PM | Friday: 8:00 AM – 9:00 PM | Saturday: 9:00 AM – 6:00 PM | Sunday: Closed
5 ★
77 reviews
Pillar To Post Home Inspectors The Greg Newman Team
4364 Vista Dr, Nazareth, PA 18064
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
4.9 ★
380 reviews
Al Morris Home Inspections, LLC
35 Clarendon Dr, Easton, PA 18040
Monday: 8:00 AM – 8:00 PM | Tuesday: 8:00 AM – 8:00 PM | Wednesday: 8:00 AM – 8:00 PM | Thursday: 8:00 AM – 8:00 PM | Friday: 8:00 AM – 8:00 PM | Saturday: 8:00 AM – 8:00 PM | Sunday: 8:00 AM – 8:00 PM
5 ★
235 reviews
Lehigh Radon Solutions
1611 N 18th St, Allentown, PA 18104
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: 8:00 AM – 2:00 PM | Sunday: Closed
5 ★
14 reviews
ARM Environmental Llc
PO Box 733, Tannersville, PA 18372
4.3 ★
22 reviews
CDA Inspection Services
173 Green St, Emmaus, PA 18049
Monday: 8:00 AM – 7:00 PM | Tuesday: 8:00 AM – 7:00 PM | Wednesday: 8:00 AM – 7:00 PM | Thursday: 8:00 AM – 7:00 PM | Friday: 8:00 AM – 7:00 PM | Saturday: 8:00 AM – 7:00 PM | Sunday: 8:00 AM – 7:00 PM
5 ★
518 reviews
Integra Environmental
6801 Tilghman St, Allentown, PA 18106
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: Closed | Sunday: Closed
5 ★
410 reviews
SWAT Radon Mitigation
8020 Mine St, Fogelsville, PA 18051
Monday: 8:00 AM – 5:30 PM | Tuesday: 8:00 AM – 5:30 PM | Wednesday: 8:00 AM – 5:30 PM | Thursday: 8:00 AM – 5:30 PM | Friday: 8:00 AM – 5:30 PM | Saturday: Closed | Sunday: Closed
4.8 ★
51 reviews
Allied Inspection Services Inc.
142 W Main St Suite 4, Macungie, PA 18062
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: 12:00 – 3:00 PM | Sunday: Closed
4.9 ★
427 reviews
Advanced Radon Services
10 Shannon Rd, Hardwick Township, NJ 07825
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: 10:00 AM – 4:00 PM | Sunday: Closed
5 ★
119 reviews
Valley Home Inspectors LLC
224 Walker Rd, Macungie, PA 18062
Monday: 8:00 AM – 7:00 PM | Tuesday: 8:00 AM – 7:00 PM | Wednesday: 8:00 AM – 7:00 PM | Thursday: 8:00 AM – 7:00 PM | Friday: 8:00 AM – 7:00 PM | Saturday: 9:00 AM – 12:00 PM | Sunday: Closed
5 ★
140 reviews
Safe Air Systems Radon Mitigation LLC
15 Minneakoning Rd STE 101, Flemington, NJ 08822
Monday: 8:30 AM – 4:30 PM | Tuesday: 8:30 AM – 4:30 PM | Wednesday: 8:30 AM – 4:30 PM | Thursday: 8:30 AM – 4:30 PM | Friday: 8:30 AM – 4:30 PM | Saturday: Closed | Sunday: Closed
5 ★
291 reviews
RAdata, LLC
27 Ironia Rd #2, Flanders, NJ 07836
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: 9:00 AM – 5:00 PM | Sunday: Closed
4.9 ★
2597 reviews
Airotox Radon Remediation Services
14 E Main St Suite 200, Lansdale, PA 19446
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 – 4:00 PM | Saturday: Closed | Sunday: Closed
5 ★
181 reviews
Jersey Radon & Water
100 Somerset Corporate Blvd, Bridgewater, NJ 08807
Monday: 8:00 AM – 10:00 PM | Tuesday: 8:00 AM – 10:00 PM | Wednesday: 8:00 AM – 10:00 PM | Thursday: 8:00 AM – 10:00 PM | Friday: 8:00 AM – 10:00 PM | Saturday: Closed | Sunday: Closed
5 ★
462 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.