Indiana 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 IN 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
Indiana 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
Indiana requires sellers to complete the Residential Real Estate Sales Disclosure Form, including any known radon test results.
State licensing required
Indiana requires radon measurement and mitigation professionals to be licensed by the Indiana State Department of Health.
IN Cost Starting Point
Indiana 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. Indiana requires sellers to complete the Residential Real Estate Sales Disclosure Form, including any known radon test results.
Mitigation licensing: State licensing can add contractor and permit friction. Indiana requires radon measurement and mitigation professionals to be licensed by the Indiana State Department of Health.
EPA zone mix in Indiana
57
Zone 1
35
Zone 2
0
Zone 3
92 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.
Official cost calibration
Compare RadonVerdict's model against Indiana Department of Health radon fact sheet
Indiana's official fact sheet gives a lower historical installation range, so the model should be read as a current-scope quote screen rather than a replacement for a licensed local bid.
Open official cost sourceOfficial public range
$800-$1,200
Indiana Department of Health radon fact sheet
RadonVerdict baseline
$960-$1732
Basement model for a standard state-level starting point.
How to use it
If a contractor quote falls outside both ranges, ask what changed: crawl-space membrane, finished routing, electrical, permit, warranty, or retest scope.
Local cost guides
Indiana 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.
92
Listed
92
Evidence
92
Measured
Best county pages to open first
Marion County
Evidence-backed local evidence
$960-$1732
CDC EPHT Network Radon Tests from Labs: 40.1% 4.0+
Marion County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 40.1% 4.0+ with a local housing base of 436,859 units and a modeled planning range of $960-$1732.
Lake County
Demand cohort local evidence
$960-$1732
CDC EPHT Network Radon Tests from Labs: 23.5% 4.0+
Lake County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 23.5% 4.0+ with a local housing base of 215,277 units and a modeled planning range of $960-$1732.
Allen County
Evidence-backed local evidence
$960-$1732
CDC EPHT Network Radon Tests from Labs: 41.8% 4.0+
Allen County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 41.8% 4.0+ with a local housing base of 162,764 units and a modeled planning range of $960-$1732.
Hamilton County
Evidence-backed local evidence
$960-$1732
CDC EPHT Network Radon Tests from Labs: 37.6% 4.0+
Hamilton County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 37.6% 4.0+ with a local housing base of 136,401 units and a modeled planning range of $960-$1732.
St. Joseph County
Evidence-backed local evidence
$960-$1732
CDC EPHT Network Radon Tests from Labs: 29.3% 4.0+
St. Joseph County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 29.3% 4.0+ with a local housing base of 118,075 units and a modeled planning range of $960-$1732.
Vanderburgh County
Demand cohort local evidence
$960-$1732
CDC EPHT Network Radon Tests from Labs: 24.4% 4.0+
Vanderburgh County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 24.4% 4.0+ with a local housing base of 84,426 units and a modeled planning range of $960-$1732.
Elkhart County
Evidence-backed local evidence
$960-$1732
CDC EPHT Network Radon Tests from Labs: 46.4% 4.0+
Elkhart County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 46.4% 4.0+ with a local housing base of 79,808 units and a modeled planning range of $960-$1732.
Tippecanoe County
Evidence-backed local evidence
$960-$1732
CDC EPHT Network Radon Tests from Labs: 36.8% 4.0+
Tippecanoe County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 36.8% 4.0+ with a local housing base of 78,105 units and a modeled planning range of $960-$1732.
Porter County
Evidence-backed local evidence
$960-$1732
CDC EPHT Network Radon Tests from Labs: 46.5% 4.0+
Porter County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 46.5% 4.0+ with a local housing base of 71,572 units and a modeled planning range of $960-$1732.
Hendricks County
Evidence-backed local evidence
$960-$1732
CDC EPHT Network Radon Tests from Labs: 41.5% 4.0+
Hendricks County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 41.5% 4.0+ with a local housing base of 67,177 units and a modeled planning range of $960-$1732.
Monroe County
Demand cohort local evidence
$960-$1732
CDC EPHT Network Radon Tests from Labs: 34.2% 4.0+
Monroe County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 34.2% 4.0+ with a local housing base of 64,009 units and a modeled planning range of $960-$1732.
Johnson County
Evidence-backed local evidence
$960-$1732
CDC EPHT Network Radon Tests from Labs: 39.4% 4.0+
Johnson County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 39.4% 4.0+ with a local housing base of 63,818 units and a modeled planning range of $960-$1732.
Madison County
Evidence-backed local evidence
$960-$1732
CDC EPHT Network Radon Tests from Labs: 49% 4.0+
Madison County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 49% 4.0+ with a local housing base of 58,913 units and a modeled planning range of $960-$1732.
Clark County
Evidence-backed local evidence
$960-$1732
CDC EPHT Network Radon Tests from Labs: 47.7% 4.0+
Clark County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 47.7% 4.0+ with a local housing base of 52,750 units and a modeled planning range of $960-$1732.
Delaware County
Evidence-backed local evidence
$960-$1732
CDC EPHT Network Radon Tests from Labs: 55.1% 4.0+
Delaware County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 55.1% 4.0+ with a local housing base of 51,613 units and a modeled planning range of $960-$1732.
LaPorte County
Evidence-backed local evidence
$960-$1732
CDC EPHT Network Radon Tests from Labs: 58.2% 4.0+
LaPorte County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 58.2% 4.0+ with a local housing base of 49,763 units and a modeled planning range of $960-$1732.
Vigo County
Evidence-backed local evidence
$960-$1732
CDC EPHT Network Radon Tests from Labs: 44% 4.0+
Vigo County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 44% 4.0+ with a local housing base of 46,946 units and a modeled planning range of $960-$1732.
Howard County
Evidence-backed local evidence
$960-$1732
CDC EPHT Network Radon Tests from Labs: 49.1% 4.0+
Howard County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 49.1% 4.0+ with a local housing base of 39,613 units and a modeled planning range of $960-$1732.
Kosciusko County
Evidence-backed local evidence
$960-$1732
CDC EPHT Network Radon Tests from Labs: 50.6% 4.0+
Kosciusko County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 50.6% 4.0+ with a local housing base of 38,312 units and a modeled planning range of $960-$1732.
Bartholomew County
Evidence-backed local evidence
$960-$1732
CDC EPHT Network Radon Tests from Labs: 48.7% 4.0+
Bartholomew County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 48.7% 4.0+ with a local housing base of 35,328 units and a modeled planning range of $960-$1732.
County estimates
Open a Indiana 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 Indiana?
Price ranges across Indiana 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.