Idaho 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 ID 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
Idaho 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
Idaho requires sellers to complete a Property Condition Disclosure Form, which covers known environmental hazards including radon.
Credential note
Idaho does not require state licensing for radon professionals.
ID Cost Starting Point
Idaho cost range by foundation
Basement
$875-$1558
Use this when the home has a basement or lowest-level slab that supports a standard sub-slab suction system.
Slab-on-Grade
$828-$1463
Slab homes can price differently when finished space, routing, or core drilling complicates the system path.
Crawl Space
$1370-$2500
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. Idaho requires sellers to complete a Property Condition Disclosure Form, which covers known environmental hazards including radon.
Mitigation licensing: No state-specific mitigation license premium is modeled. Idaho does not require state licensing for radon professionals.
EPA zone mix in Idaho
19
Zone 1
20
Zone 2
5
Zone 3
44 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
Idaho 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.
44
Listed
44
Evidence
44
Measured
Best county pages to open first
Ada County
Demand cohort local evidence
$875-$1558
CDC EPHT Network Radon Tests from Labs: 25.2% 4.0+
Ada County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 25.2% 4.0+ with a local housing base of 198,516 units and a modeled planning range of $875-$1558.
Canyon County
Evidence-backed local evidence
$875-$1558
CDC EPHT Network Radon Tests from Labs: 10.7% 4.0+
Canyon County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 10.7% 4.0+ with a local housing base of 82,374 units and a modeled planning range of $875-$1558.
Kootenai County
Evidence-backed local evidence
$875-$1558
CDC EPHT Network Radon Tests from Labs: 61% 4.0+
Kootenai County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 61% 4.0+ with a local housing base of 75,686 units and a modeled planning range of $875-$1558.
Bonneville County
Evidence-backed local evidence
$875-$1558
CDC EPHT Network Radon Tests from Labs: 40.1% 4.0+
Bonneville 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 45,510 units and a modeled planning range of $875-$1558.
Bannock County
Evidence-backed local evidence
$875-$1558
CDC EPHT Network Radon Tests from Labs: 41.9% 4.0+
Bannock County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 41.9% 4.0+ with a local housing base of 35,186 units and a modeled planning range of $875-$1558.
Twin Falls County
Evidence-backed local evidence
$875-$1558
CDC EPHT Network Radon Tests from Labs: 24.1% 4.0+
Twin Falls County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 24.1% 4.0+ with a local housing base of 35,014 units and a modeled planning range of $875-$1558.
Bonner County
Evidence-backed local evidence
$875-$1558
CDC EPHT Network Radon Tests from Labs: 33% 4.0+
Bonner County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 33% 4.0+ with a local housing base of 26,374 units and a modeled planning range of $875-$1558.
Latah County
Cost eligible local evidence
$875-$1558
CDC EPHT Network Radon Tests from Labs: 26% 4.0+
Latah County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 26% 4.0+ with a local housing base of 17,301 units and a modeled planning range of $875-$1558.
Bingham County
Cost eligible local evidence
$875-$1558
CDC EPHT Network Radon Tests from Labs: 52% 4.0+
Bingham County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 52% 4.0+ with a local housing base of 17,028 units and a modeled planning range of $875-$1558.
Blaine County
Cost eligible local evidence
$875-$1558
CDC EPHT Network Radon Tests from Labs: 57.7% 4.0+
Blaine County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 57.7% 4.0+ with a local housing base of 15,562 units and a modeled planning range of $875-$1558.
Valley County
Cost eligible local evidence
$875-$1558
CDC EPHT Network Radon Tests from Labs: 27.3% 4.0+
Valley County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 27.3% 4.0+ with a local housing base of 12,359 units and a modeled planning range of $875-$1558.
Elmore County
Cost eligible local evidence
$875-$1558
CDC EPHT Network Radon Tests from Labs: 48.1% 4.0+
Elmore County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 48.1% 4.0+ with a local housing base of 12,119 units and a modeled planning range of $875-$1558.
Idaho County
Cost eligible local evidence
$875-$1558
CDC EPHT Network Radon Tests from Labs: 40% 4.0+
Idaho County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 40% 4.0+ with a local housing base of 8,880 units and a modeled planning range of $875-$1558.
Fremont County
Cost eligible local evidence
$875-$1558
CDC EPHT Network Radon Tests from Labs: 49.5% 4.0+
Fremont County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 49.5% 4.0+ with a local housing base of 8,564 units and a modeled planning range of $875-$1558.
Shoshone County
Cost eligible local evidence
$875-$1558
CDC EPHT Network Radon Tests from Labs: 63% 4.0+
Shoshone County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 63% 4.0+ with a local housing base of 7,021 units and a modeled planning range of $875-$1558.
Lemhi County
Cost eligible local evidence
$875-$1558
CDC EPHT Network Radon Tests from Labs: 65.2% 4.0+
Lemhi County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 65.2% 4.0+ with a local housing base of 4,609 units and a modeled planning range of $875-$1558.
Madison County
Cost eligible local evidence
$875-$1558
CDC EPHT Network Radon Tests from Labs: 63.7% 4.0+
Madison County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 63.7% 4.0+ with a local housing base of 14,328 units and a modeled planning range of $875-$1558.
Jefferson County
Cost eligible local evidence
$875-$1558
CDC EPHT Network Radon Tests from Labs: 67.1% 4.0+
Jefferson County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 67.1% 4.0+ with a local housing base of 10,241 units and a modeled planning range of $875-$1558.
Benewah County
Cost eligible local evidence
$875-$1558
CDC EPHT Network Radon Tests from Labs: 31% 4.0+
Benewah County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 31% 4.0+ with a local housing base of 4,666 units and a modeled planning range of $875-$1558.
Clearwater County
Cost eligible local evidence
$875-$1558
CDC EPHT Network Radon Tests from Labs: 30.3% 4.0+
Clearwater County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 30.3% 4.0+ with a local housing base of 4,573 units and a modeled planning range of $875-$1558.
County estimates
Open a Idaho 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 Idaho?
Price ranges across Idaho 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.