Ohio Radon Mitigation Cost by County, Foundation, and Rules
Compare typical local price ranges for basement, slab, and crawl space systems. Use the state-level ranges first, then open your county when you need a local estimate after a confirmed radon result.
Fastest Start
Use ZIP Instead of Scrolling
If you know the property ZIP, jump straight to the right county estimate instead of browsing the full state list.
Cost Basics
Foundation & Result Ranges
Use the national cost guide if you need basement, slab, crawl-space, or 4.0+ result context first.
Validate the Risk
Check OH Radon Levels
If you do not have a confirmed radon result yet, review EPA zone context before you compare mitigation pricing.
Browse Counties
Jump to County Pricing
Open your county if you already know the area and just need a local basement, slab, or crawl-space price range.
Official State Resource
Ohio radon program and rules
Use the state program link to verify local radon guidance, disclosure language, and contractor credential expectations before you act on an estimate.
Disclosure rule tracked
Ohio requires sellers to disclose known radon levels on the Ohio Residential Property Disclosure Form.
State licensing required
Ohio requires radon testers and mitigators to be licensed by the Ohio Department of Health.
OH Cost Starting Point
Ohio cost range by foundation
Basement
$960-$1732
Use this when the home has a basement or lowest-level slab that supports a standard sub-slab suction system.
Slab-on-Grade
$914-$1640
Slab homes can price differently when finished space, routing, or core drilling complicates the system path.
Crawl Space
$1452-$2670
Crawl-space jobs can move higher when vapor-barrier sealing, access, and sub-membrane suction add labor.
State rules that can change the quote
Disclosure: Required or commonly expected in this state context. Ohio requires sellers to disclose known radon levels on the Ohio Residential Property Disclosure Form.
Mitigation licensing: State licensing can add contractor and permit friction. Ohio requires radon testers and mitigators to be licensed by the Ohio Department of Health.
EPA zone mix in Ohio
53
Zone 1
35
Zone 2
0
Zone 3
88 classified counties are used for state-level risk context. EPA zones do not replace a home test, but they help explain why county pages and confirmed 4.0+ results matter before comparing quotes.
Local cost guides
Ohio evidence-backed cost route
The cost directory follows the same eligibility rule as the county cost pages themselves. State hubs, sitemap candidates, and internal links point at pages Google can actually index.
88
Listed
88
Evidence
88
Measured
Best county pages to open first
Cuyahoga County
Evidence-backed local evidence
$960-$1732
CDC EPHT Network Radon Tests from Labs: 21.7% 4.0+
Cuyahoga County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 21.7% 4.0+ with a local housing base of 615,881 units and a modeled planning range of $960-$1732.
Franklin County
Evidence-backed local evidence
$960-$1732
CDC EPHT Network Radon Tests from Labs: 71.9% 4.0+
Franklin County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 71.9% 4.0+ with a local housing base of 582,701 units and a modeled planning range of $960-$1732.
Hamilton County
Evidence-backed local evidence
$960-$1732
CDC EPHT Network Radon Tests from Labs: 34.7% 4.0+
Hamilton County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 34.7% 4.0+ with a local housing base of 379,583 units and a modeled planning range of $960-$1732.
Montgomery County
Evidence-backed local evidence
$960-$1732
CDC EPHT Network Radon Tests from Labs: 50.3% 4.0+
Montgomery County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 50.3% 4.0+ with a local housing base of 252,061 units and a modeled planning range of $960-$1732.
Summit County
Evidence-backed local evidence
$960-$1732
CDC EPHT Network Radon Tests from Labs: 38.7% 4.0+
Summit County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 38.7% 4.0+ with a local housing base of 246,641 units and a modeled planning range of $960-$1732.
Lucas County
Evidence-backed local evidence
$960-$1732
CDC EPHT Network Radon Tests from Labs: 40.2% 4.0+
Lucas County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 40.2% 4.0+ with a local housing base of 200,495 units and a modeled planning range of $960-$1732.
Stark County
Evidence-backed local evidence
$960-$1732
CDC EPHT Network Radon Tests from Labs: 60.1% 4.0+
Stark County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 60.1% 4.0+ with a local housing base of 167,068 units and a modeled planning range of $960-$1732.
Butler County
Evidence-backed local evidence
$960-$1732
CDC EPHT Network Radon Tests from Labs: 54.3% 4.0+
Butler County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 54.3% 4.0+ with a local housing base of 154,056 units and a modeled planning range of $960-$1732.
Lorain County
Evidence-backed local evidence
$960-$1732
CDC EPHT Network Radon Tests from Labs: 45.4% 4.0+
Lorain County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 45.4% 4.0+ with a local housing base of 134,591 units and a modeled planning range of $960-$1732.
Mahoning County
Demand cohort local evidence
$960-$1732
CDC EPHT Network Radon Tests from Labs: 23.4% 4.0+
Mahoning County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 23.4% 4.0+ with a local housing base of 108,203 units and a modeled planning range of $960-$1732.
Lake County
Evidence-backed local evidence
$960-$1732
CDC EPHT Network Radon Tests from Labs: 27.2% 4.0+
Lake County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 27.2% 4.0+ with a local housing base of 105,399 units and a modeled planning range of $960-$1732.
Trumbull County
Evidence-backed local evidence
$960-$1732
CDC EPHT Network Radon Tests from Labs: 34.6% 4.0+
Trumbull County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 34.6% 4.0+ with a local housing base of 94,575 units and a modeled planning range of $960-$1732.
Warren County
Evidence-backed local evidence
$960-$1732
CDC EPHT Network Radon Tests from Labs: 52.5% 4.0+
Warren County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 52.5% 4.0+ with a local housing base of 93,520 units and a modeled planning range of $960-$1732.
Clermont County
Evidence-backed local evidence
$960-$1732
CDC EPHT Network Radon Tests from Labs: 50% 4.0+
Clermont County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 50% 4.0+ with a local housing base of 86,713 units and a modeled planning range of $960-$1732.
Delaware County
Evidence-backed local evidence
$960-$1732
CDC EPHT Network Radon Tests from Labs: 72.2% 4.0+
Delaware County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 72.2% 4.0+ with a local housing base of 82,131 units and a modeled planning range of $960-$1732.
Medina County
Evidence-backed local evidence
$960-$1732
CDC EPHT Network Radon Tests from Labs: 43.4% 4.0+
Medina County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 43.4% 4.0+ with a local housing base of 75,138 units and a modeled planning range of $960-$1732.
Licking County
Evidence-backed local evidence
$960-$1732
CDC EPHT Network Radon Tests from Labs: 71.2% 4.0+
Licking County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 71.2% 4.0+ with a local housing base of 72,722 units and a modeled planning range of $960-$1732.
Greene County
Evidence-backed local evidence
$960-$1732
CDC EPHT Network Radon Tests from Labs: 58.6% 4.0+
Greene County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 58.6% 4.0+ with a local housing base of 71,471 units and a modeled planning range of $960-$1732.
Portage County
Evidence-backed local evidence
$960-$1732
CDC EPHT Network Radon Tests from Labs: 39.3% 4.0+
Portage County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 39.3% 4.0+ with a local housing base of 70,692 units and a modeled planning range of $960-$1732.
Fairfield County
Evidence-backed local evidence
$960-$1732
CDC EPHT Network Radon Tests from Labs: 76.8% 4.0+
Fairfield County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 76.8% 4.0+ with a local housing base of 62,743 units and a modeled planning range of $960-$1732.
County estimates
Open a Ohio county page for local pricing
County pages narrow the state range with local EPA zone context, housing data, state rules, and the foundation scenario you choose.
Why Does Cost Vary in Ohio?
Price ranges across Ohio move with local labor rates, permit friction, roofline routing, and foundation type. County pages narrow this down for homeowners comparing basement, slab, or crawl space mitigation after a confirmed radon reading.