Alpha Radon Remediation
Verified Pro
~7 years online4.9(140)
Radon Mitigation in Cincinnati, OH
Compare 22 radon mitigation contractors near you in Cincinnati and surrounding area with an average rating of 4.7/5. Get free quotes, read reviews, and find the right pro for your project.
Last updated March 22, 2026
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Other Businesses in This Area
Cincinnati Radon Mitigation
6½+ years onlineAll Clear Radon
5.05½+ years onlineAmerican Verified Home Inspections
5.0~20 years onlineExcalibur Radon Mitigation
5.0Gerard Radon
5.0~6 years onlineHolistic Home Inspections LLC
5.0~6 years onlineLSM Radon Systems LLC
5.0North American Radon
5.06 years onlineRadon-X Testing
5.0Simply Radon
5.0Velocity Radon Mitigation
5.0Dry Effect
4.912+ years onlineGuardian Radon Removal
4.9~4 years onlineReliable Home Inspections
4.9~10 years onlineRadon Specialties Co
4.8~26 years onlineMobile Radon Diagnostics LLC
4.720+ years onlineTri State Radon & Mold
3.6~15 years onlineOmega Radon Mitigation, LLC
3.4Advanced Radon Testing
3.0Radon Mitigation in Nearby OH Cities
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Radon Mitigation in Cincinnati, OH
Cincinnati, Ohio radon mitigation contractors serve a market where elevated radon levels in residential homes are common—Hamilton County is a Zone 1 area per EPA classification with average indoor radon levels above 4 pCi/L. Local installers handle sub-slab depressurization (the most common active radon system), drain tile suction, and crawlspace membrane systems. Ohio doesn't require state-level radon contractor licensing, but reputable installers hold NRPP (National Radon Proficiency Program) or NRSB (National Radon Safety Board) certifications. Pre-purchase radon testing during real estate transactions drives most mitigation work.
Cincinnati's older brick homes—particularly in Hyde Park, Clifton, and Mt. Adams—often have stone foundations or older concrete that allows higher radon entry rates. These properties may need multiple suction points or extensive crack sealing alongside sub-slab depressurization. Newer Cincinnati homes built since 2009 typically have radon-ready stub-ups in the slab, simplifying mitigation.
Frequently Asked Questions
- How much does radon mitigation cost in Cincinnati?
- A typical sub-slab depressurization system runs $1,200-2,500 in Cincinnati, including suction point, fan, exhaust pipe to the eave, monitor, and electrical work. More complex installations (multiple suction points, exterior-routed pipe, crawlspace membranes) can run $2,500-4,500.
- Will mitigation work on my old Cincinnati basement?
- Yes, but older stone foundations may need additional crack sealing and crawlspace membranes alongside standard sub-slab depressurization. Reputable installers conduct diagnostic testing first to determine the best approach. Most homes see 80-99% radon reduction post-mitigation.
- Should I retest after mitigation?
- Yes, reputable installers conduct a 48-hour confidence test 2-4 weeks after install to verify the system reduced levels below 4.0 pCi/L. Most warranties guarantee performance for 1-5 years and will adjust the system if retests show insufficient reduction.
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