Kansas 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 KS 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
Kansas 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
Kansas requires sellers to disclose known material defects through the Seller's Disclosure Statement.
State licensing required
Kansas requires radon professionals to be certified by the KDHE.
KS Cost Starting Point
Kansas cost range by foundation
Basement
$950-$1715
Use this when the home has a basement or lowest-level slab that supports a standard sub-slab suction system.
Slab-on-Grade
$905-$1625
Slab homes can price differently when finished space, routing, or core drilling complicates the system path.
Crawl Space
$1440-$2650
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. Kansas requires sellers to disclose known material defects through the Seller's Disclosure Statement.
Mitigation licensing: State licensing can add contractor and permit friction. Kansas requires radon professionals to be certified by the KDHE.
EPA zone mix in Kansas
65
Zone 1
40
Zone 2
0
Zone 3
105 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
Kansas 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.
105
Listed
105
Evidence
105
Measured
Best county pages to open first
Johnson County
Evidence-backed local evidence
$950-$1715
Kansas EPHT Radon Data: 39.7% 4.0+
Johnson County is a strong cost page because it pairs Kansas EPHT Radon Data: 39.7% 4.0+ with a local housing base of 252,108 units and a modeled planning range of $950-$1715.
Sedgwick County
Evidence-backed local evidence
$950-$1715
Kansas EPHT Radon Data: 18.1% 4.0+
Sedgwick County is a strong cost page because it pairs Kansas EPHT Radon Data: 18.1% 4.0+ with a local housing base of 224,058 units and a modeled planning range of $950-$1715.
Shawnee County
Demand cohort local evidence
$950-$1715
Kansas EPHT Radon Data: 31.1% 4.0+
Shawnee County is a strong cost page because it pairs Kansas EPHT Radon Data: 31.1% 4.0+ with a local housing base of 80,673 units and a modeled planning range of $950-$1715.
Wyandotte County
Evidence-backed local evidence
$950-$1715
Kansas EPHT Radon Data: 34.5% 4.0+
Wyandotte County is a strong cost page because it pairs Kansas EPHT Radon Data: 34.5% 4.0+ with a local housing base of 68,482 units and a modeled planning range of $950-$1715.
Douglas County
Evidence-backed local evidence
$950-$1715
Kansas EPHT Radon Data: 28.5% 4.0+
Douglas County is a strong cost page because it pairs Kansas EPHT Radon Data: 28.5% 4.0+ with a local housing base of 52,818 units and a modeled planning range of $950-$1715.
Leavenworth County
Evidence-backed local evidence
$950-$1715
Kansas EPHT Radon Data: 24.5% 4.0+
Leavenworth County is a strong cost page because it pairs Kansas EPHT Radon Data: 24.5% 4.0+ with a local housing base of 31,280 units and a modeled planning range of $950-$1715.
Riley County
Evidence-backed local evidence
$950-$1715
Kansas EPHT Radon Data: 27.8% 4.0+
Riley County is a strong cost page because it pairs Kansas EPHT Radon Data: 27.8% 4.0+ with a local housing base of 30,595 units and a modeled planning range of $950-$1715.
Butler County
Evidence-backed local evidence
$950-$1715
Kansas EPHT Radon Data: 31.1% 4.0+
Butler County is a strong cost page because it pairs Kansas EPHT Radon Data: 31.1% 4.0+ with a local housing base of 27,019 units and a modeled planning range of $950-$1715.
Saline County
Cost eligible local evidence
$950-$1715
Kansas EPHT Radon Data: 32.4% 4.0+
Saline County is a strong cost page because it pairs Kansas EPHT Radon Data: 32.4% 4.0+ with a local housing base of 24,116 units and a modeled planning range of $950-$1715.
Geary County
Cost eligible local evidence
$950-$1715
Kansas EPHT Radon Data: 29.7% 4.0+
Geary County is a strong cost page because it pairs Kansas EPHT Radon Data: 29.7% 4.0+ with a local housing base of 15,893 units and a modeled planning range of $950-$1715.
Finney County
Demand cohort local evidence
$950-$1715
Kansas EPHT Radon Data: 30% 4.0+
Finney County is a strong cost page because it pairs Kansas EPHT Radon Data: 30% 4.0+ with a local housing base of 14,174 units and a modeled planning range of $950-$1715.
Ellis County
Cost eligible local evidence
$950-$1715
Kansas EPHT Radon Data: 46.1% 4.0+
Ellis County is a strong cost page because it pairs Kansas EPHT Radon Data: 46.1% 4.0+ with a local housing base of 13,214 units and a modeled planning range of $950-$1715.
McPherson County
Cost eligible local evidence
$950-$1715
Kansas EPHT Radon Data: 36.2% 4.0+
McPherson County is a strong cost page because it pairs Kansas EPHT Radon Data: 36.2% 4.0+ with a local housing base of 13,082 units and a modeled planning range of $950-$1715.
Ford County
Cost eligible local evidence
$950-$1715
Kansas EPHT Radon Data: 49.5% 4.0+
Ford County is a strong cost page because it pairs Kansas EPHT Radon Data: 49.5% 4.0+ with a local housing base of 12,568 units and a modeled planning range of $950-$1715.
Barton County
Cost eligible local evidence
$950-$1715
Kansas EPHT Radon Data: 37.3% 4.0+
Barton County is a strong cost page because it pairs Kansas EPHT Radon Data: 37.3% 4.0+ with a local housing base of 12,396 units and a modeled planning range of $950-$1715.
Dickinson County
Cost eligible local evidence
$950-$1715
Kansas EPHT Radon Data: 36.7% 4.0+
Dickinson County is a strong cost page because it pairs Kansas EPHT Radon Data: 36.7% 4.0+ with a local housing base of 8,785 units and a modeled planning range of $950-$1715.
Cloud County
Cost eligible local evidence
$950-$1715
Kansas EPHT Radon Data: 63% 4.0+
Cloud County is a strong cost page because it pairs Kansas EPHT Radon Data: 63% 4.0+ with a local housing base of 4,520 units and a modeled planning range of $950-$1715.
Clay County
Cost eligible local evidence
$950-$1715
Kansas EPHT Radon Data: 57.8% 4.0+
Clay County is a strong cost page because it pairs Kansas EPHT Radon Data: 57.8% 4.0+ with a local housing base of 3,935 units and a modeled planning range of $950-$1715.
Reno County
Evidence-backed local evidence
$950-$1715
Kansas EPHT Radon Data: 17.8% 4.0+
Reno County is a strong cost page because it pairs Kansas EPHT Radon Data: 17.8% 4.0+ with a local housing base of 28,309 units and a modeled planning range of $950-$1715.
Harvey County
Cost eligible local evidence
$950-$1715
Kansas EPHT Radon Data: 35.6% 4.0+
Harvey County is a strong cost page because it pairs Kansas EPHT Radon Data: 35.6% 4.0+ with a local housing base of 14,585 units and a modeled planning range of $950-$1715.
County estimates
Open a Kansas 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 Kansas?
Price ranges across Kansas 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.