RM
MitigationTestingPost-Test
Free Estimates
Radon Pros in Ohio
47 contractorsEPA zone context: The majority of Ohio counties are Zone 1, particularly northeastern and central regions. Ohio has one of the most widespread radon problems in the US.
TP
Trusted Property Inspections - Central OH
5.0 (181 Google reviews)
Identity Verified
Full Service•Columbus, OH
MitigationTestingCommercialPost-Test
RT
MitigationTestingCrawlspaceFan RepairNew Construction+3
7-Year WarrantyFree Estimates
Radon Technology, Inc. is a dedicated radon services company serving Dayton, OH. Services include radon testing, radon mitigation system installation. Works with basements, slab foundations, crawlspaces, split-level homes. Methods include sub-slab depressurization, heat recovery ventilation. Rated 4.9/5 on Google based on 140 reviews. Offers free estimates, real estate transaction testing. Provides a 7-year warranty on mitigation systems.
CH
CAI Home Inspection & Engineering
5.0 (114 Google reviews)
Identity Verified
Testing Specialist•Dublin, OH
TestingCommercial
GR
MitigationTestingCrawlspaceCommercialVapor Barrier+2
Free Estimates
Guardian Radon Removal is a dedicated radon services company serving Fairfield, OH. Over 20 years of experience. Services include radon testing, radon mitigation system installation. Works with basements, slab foundations, crawlspaces. Methods include heat recovery ventilation. Rated 4.9/5 on Google based on 78 reviews. Offers free estimates, real estate transaction testing.
HB
HomeWise Building Inspection Services
4.4 (7 Google reviews)
Identity Verified
Full Service•Fairview Park, OH
MitigationTesting
OT
Ohio Technical Services, Inc.
4.9 (59 Google reviews)
Certified Professional
Licensed Provider: Brian Hatfield
Full Service•Grove City, OH
MitigationTestingCommercial
Certified RMS/RMP
Ohio Technical Services, Inc. is a dedicated radon services company serving Grove City, OH. Services include radon mitigation system installation, mitigation system design, radon testing, radon measurement. Methods include heat recovery ventilation. Holds Certified Radon Mitigation Specialist and Certified Radon Measurement Professional certifications. Rated 4.9/5 on Google based on 59 reviews.
RP
Radon Pros
5.0 (92 Google reviews)
Certified Professional
Licensed Provider: David Yimsumruay
Full Service•Grove City, OH
MitigationTestingNew ConstructionCommercial
Certified RMP5-Year Warranty
Radon Pros is a dedicated radon services company serving Grove City, OH. Services include radon testing, radon measurement. Methods include heat recovery ventilation. Holds Certified Radon Measurement Professional certification. Rated 5.0/5 on Google based on 92 reviews. Offers real estate transaction testing. Provides a 5-year warranty on mitigation systems.
HH
HIC Home Inspection Cleveland
5.0 (23 Google reviews)
Identity Verified
Testing Specialist•Lakewood, OH
TestingNew Construction
Free Estimates
PT
Pillar To Post, Cincinnati
4.9 (1240 Google reviews)
Certified Professional
Licensed Provider: Tracey Y. Capuano
Liberty Township, OH
TestingPost-Test
Certified RMP
QI
Quantum Inspection Services Inc
Certified Professional
Licensed Provider: Roy L Stanley
Full Service•Newport, OH
MitigationTestingCrawlspaceNew ConstructionCommercial
Certified RMPLicensed & Insured
Quantum Inspection Services Inc is a home inspection company with radon testing capabilities serving Newport, OH. Services include radon testing, radon measurement. Methods include heat recovery ventilation. Holds Certified Radon Measurement Professional certification. Offers real estate transaction testing, rush/priority scheduling, financing options, licensed and insured.
II
Testing
AH
Accurate Home Inspections & Consulting Llc
5.0 (160 Google reviews)
Identity Verified
Full Service•North Royalton, OH
MitigationTestingCommercial
IU
Testing
CP
Checkpoint Property Inspection
4.6 (56 Google reviews)
Identity Verified
Testing Specialist•Plain City, OH
TestingNew Construction
Data provided by Google Maps
State Info
Radon levels vary house-to-house even in the same city. Testing your own home is the only reliable way to know your risk.
Popular Cities for Radon Mitigation in Ohio
Radon mitigation in Columbus, Ohio10 local contractors listedRadon mitigation in Cincinnati, Ohio7 local contractors listedRadon mitigation in Cleveland, Ohio2 local contractors listedRadon mitigation in Grove City, Ohio2 local contractors listedRadon mitigation in North Royalton, Ohio2 local contractors listedRadon mitigation in Plain City, Ohio2 local contractors listedRadon mitigation in Akron, Ohio1 local contractors listedRadon mitigation in Avon, Ohio1 local contractors listedRadon mitigation in Bay Village, Ohio1 local contractors listedRadon mitigation in Canton, Ohio1 local contractors listedRadon mitigation in Cleves, Ohio1 local contractors listedRadon mitigation in Dayton, Ohio1 local contractors listedRadon mitigation in Dublin, Ohio1 local contractors listedRadon mitigation in Fairfield, Ohio1 local contractors listedRadon mitigation in Fairview Park, Ohio1 local contractors listedRadon mitigation in Highland Heights, Ohio1 local contractors listedRadon mitigation in Lakewood, Ohio1 local contractors listedRadon mitigation in Liberty Township, Ohio1 local contractors listedRadon mitigation in Munroe Falls, Ohio1 local contractors listedRadon mitigation in Newport, Ohio1 local contractors listedRadon mitigation in North Olmsted, Ohio1 local contractors listedRadon mitigation in Parma, Ohio1 local contractors listedRadon mitigation in Ravenna, Ohio1 local contractors listedRadon mitigation in Reynoldsburg, Ohio1 local contractors listed
FAQ: Radon Mitigation in Ohio
Does Ohio require radon disclosure?
Yes. Ohio's residential property disclosure form includes a radon disclosure section. Sellers must disclose known test results.
How much does radon mitigation cost in Ohio?
Most homeowners in Ohio see mitigation quotes in the low-thousands, but the final cost depends on foundation type, fan location, and pipe routing complexity. A cost calculator can help you benchmark estimates before requesting bids.
Do I need radon testing in Ohio before hiring a contractor?
Yes. A valid short-term or long-term test is the fastest way to confirm if mitigation is needed and to scope the right system design.
What radon level is dangerous in Ohio?
EPA recommends action at 4.0 pCi/L, and many homeowners choose to reduce levels even below that threshold. The majority of Ohio counties are Zone 1, particularly northeastern and central regions. Ohio has one of the most widespread radon problems in the US. ZIP-level lookup tools are useful for local context, but home testing is still required.
How do I choose a certified radon contractor in Ohio?
Look for current NRPP or NRSB credentials, ask for post-mitigation test expectations, and confirm local compliance details. Ohio requires radon testers and mitigators to be licensed by the Ohio Department of Health.
State Resources for Ohio
Radon mitigation cost in Ohio
Estimate likely project pricing by foundation type and system complexity.
Radon testing guide for Ohio homes
Learn when and how to test, plus how to interpret pCi/L results.
Radon levels and EPA zones in Ohio
See how state-level risk varies and what zone maps can and cannot tell you.
ZIP-level radon risk in Ohio
Check projected local risk by ZIP code before you request quotes.