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RadonProsCertified Directory
Aerial neighborhood view in Ohio

Radon Pros in Ohio

47 contractors

EPA 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.

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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

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