Radon Testing & Mitigation in Louisville & Shepherdsville, KY
Certified radon testing and mitigation for homeowners, buyers, sellers and real estate agents across Greater Louisville. Reports are delivered the same day your test ends.
✓ NRPP-certified ✓ Registered with the Kentucky Board of Radon Safety ✓ Same-day reports ✓ Tests from $150
Our Services
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Radon Testing
Fast, 48-hour continuous radon monitoring (CRM) using advanced, tamper-proof equipment. Fully certified for real estate transactions, home purchases, and peace-of-mind testing with rapid digital reporting.
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Radon Mitigation
Custom-engineered active soil depressurization (ASD) systems designed to safely pull harmful radon gas from beneath your foundation and vent it harmlessly above your roofline.
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Radon Maintenance
Routine system inspections, manometer checks, fan evaluations, and diagnostic tune-ups to ensure your active mitigation system operates quietly and maintains low radon levels long-term.
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Diagnostic & Post-Mitigation Testing
Specialized sub-slab pressure field extension (PFE) diagnostics for complex foundations, as well as independent clearance testing to verify existing system performance.
What Is Radon & Why Does Your Home Need Testing?
Radon is an invisible, odorless, and tasteless radioactive gas naturally produced by the decay of uranium in soil and rock. It enters homes through foundation cracks, sump pumps, and construction joints, accumulating to dangerous levels indoors.
According to the EPA, radon is the leading cause of lung cancer among non-smokers. Because you cannot see or smell radon, continuous diagnostic testing is the only way to know your exposure levels and protect your family or property investment.
Why Choose RadonClear
✓ Owner-operated: you deal directly with Roger Spalding, the certified professional who does the work.
✓ Certified for both testing and mitigation: NRPP Radon Measurement Professional (#115927-RMP) and Radon Mitigation Specialist (#116101-RMS), and registered with the Kentucky Board of Radon Safety.
✓ Results you can verify: every mitigation system is followed by a post-mitigation test to confirm it worked.
✓ Same-day reports: your report is delivered the day your test ends.
✓ Real estate friendly: payment at closing is available for buyers and sellers.
Who We Serve
Homeowners · Home Buyers & Sellers · Real Estate Agents · Home Inspectors · Property Managers & Landlords
For Real Estate Agents
Keep your closings on schedule. RadonClear uses 48-hour continuous radon monitors, delivers the report the same day the test ends, and offers payment at closing for your clients. Order a test by calling (502) 501-2811.
Service Area
Based in Shepherdsville and serving Louisville and the surrounding area, including Jefferson, Bullitt, Oldham, Shelby and Spencer counties. Not sure if you’re in our area? Call (502) 501-2811.
Meet Roger
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Radon Professional
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Meet Roger - Radon Professional -
I’m Roger Spalding, founder of RadonClear. I started the company to give Louisville-area homeowners and real estate professionals fast, straightforward answers about radon. I’m NRPP-certified in both radon measurement and mitigation and registered with the Kentucky Board of Radon Safety. When you call RadonClear, you’re talking to the person who will test your home or install your system.