Tennessee 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 TN 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
Tennessee 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
Tennessee requires sellers to complete a Residential Property Condition Disclosure covering known defects and hazards.
Credential note
Tennessee does not require specific radon licensing.
TN Cost Starting Point
Tennessee cost range by foundation
Basement
$850-$1515
Use this when the home has a basement or lowest-level slab that supports a standard sub-slab suction system.
Slab-on-Grade
$805-$1425
Slab homes can price differently when finished space, routing, or core drilling complicates the system path.
Crawl Space
$1340-$2450
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. Tennessee requires sellers to complete a Residential Property Condition Disclosure covering known defects and hazards.
Mitigation licensing: No state-specific mitigation license premium is modeled. Tennessee does not require specific radon licensing.
EPA zone mix in Tennessee
38
Zone 1
32
Zone 2
25
Zone 3
95 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
Tennessee 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.
95
Listed
95
Evidence
95
Measured
Best county pages to open first
Davidson County
Evidence-backed local evidence
$850-$1515
Tennessee EPHT Radon Data: 37.4% 4.0+
Davidson County is a strong cost page because it pairs Tennessee EPHT Radon Data: 37.4% 4.0+ with a local housing base of 333,753 units and a modeled planning range of $850-$1515.
Knox County
Evidence-backed local evidence
$850-$1515
Tennessee EPHT Radon Data: 29.5% 4.0+
Knox County is a strong cost page because it pairs Tennessee EPHT Radon Data: 29.5% 4.0+ with a local housing base of 212,074 units and a modeled planning range of $850-$1515.
Hamilton County
Evidence-backed local evidence
$850-$1515
Tennessee EPHT Radon Data: 17.5% 4.0+
Hamilton County is a strong cost page because it pairs Tennessee EPHT Radon Data: 17.5% 4.0+ with a local housing base of 163,534 units and a modeled planning range of $850-$1515.
Rutherford County
Evidence-backed local evidence
$850-$1515
Tennessee EPHT Radon Data: 19.7% 4.0+
Rutherford County is a strong cost page because it pairs Tennessee EPHT Radon Data: 19.7% 4.0+ with a local housing base of 131,808 units and a modeled planning range of $850-$1515.
Williamson County
Demand cohort local evidence
$850-$1515
Tennessee EPHT Radon Data: 21.4% 4.0+
Williamson County is a strong cost page because it pairs Tennessee EPHT Radon Data: 21.4% 4.0+ with a local housing base of 91,828 units and a modeled planning range of $850-$1515.
Montgomery County
Evidence-backed local evidence
$850-$1515
Tennessee EPHT Radon Data: 23.6% 4.0+
Montgomery County is a strong cost page because it pairs Tennessee EPHT Radon Data: 23.6% 4.0+ with a local housing base of 87,220 units and a modeled planning range of $850-$1515.
Sumner County
Evidence-backed local evidence
$850-$1515
Tennessee EPHT Radon Data: 25% 4.0+
Sumner County is a strong cost page because it pairs Tennessee EPHT Radon Data: 25% 4.0+ with a local housing base of 79,481 units and a modeled planning range of $850-$1515.
Sullivan County
Evidence-backed local evidence
$850-$1515
Tennessee EPHT Radon Data: 44% 4.0+
Sullivan County is a strong cost page because it pairs Tennessee EPHT Radon Data: 44% 4.0+ with a local housing base of 75,686 units and a modeled planning range of $850-$1515.
Washington County
Evidence-backed local evidence
$850-$1515
Tennessee EPHT Radon Data: 41.4% 4.0+
Washington County is a strong cost page because it pairs Tennessee EPHT Radon Data: 41.4% 4.0+ with a local housing base of 60,904 units and a modeled planning range of $850-$1515.
Blount County
Evidence-backed local evidence
$850-$1515
Tennessee EPHT Radon Data: 33.1% 4.0+
Blount County is a strong cost page because it pairs Tennessee EPHT Radon Data: 33.1% 4.0+ with a local housing base of 60,058 units and a modeled planning range of $850-$1515.
Wilson County
Evidence-backed local evidence
$850-$1515
Tennessee EPHT Radon Data: 21.6% 4.0+
Wilson County is a strong cost page because it pairs Tennessee EPHT Radon Data: 21.6% 4.0+ with a local housing base of 58,967 units and a modeled planning range of $850-$1515.
Sevier County
Demand cohort local evidence
$850-$1515
Tennessee EPHT Radon Data: 46.7% 4.0+
Sevier County is a strong cost page because it pairs Tennessee EPHT Radon Data: 46.7% 4.0+ with a local housing base of 56,728 units and a modeled planning range of $850-$1515.
Bradley County
Evidence-backed local evidence
$850-$1515
Tennessee EPHT Radon Data: 18.6% 4.0+
Bradley County is a strong cost page because it pairs Tennessee EPHT Radon Data: 18.6% 4.0+ with a local housing base of 44,924 units and a modeled planning range of $850-$1515.
Maury County
Evidence-backed local evidence
$850-$1515
Tennessee EPHT Radon Data: 30% 4.0+
Maury County is a strong cost page because it pairs Tennessee EPHT Radon Data: 30% 4.0+ with a local housing base of 43,464 units and a modeled planning range of $850-$1515.
Anderson County
Evidence-backed local evidence
$850-$1515
Tennessee EPHT Radon Data: 25.2% 4.0+
Anderson County is a strong cost page because it pairs Tennessee EPHT Radon Data: 25.2% 4.0+ with a local housing base of 35,326 units and a modeled planning range of $850-$1515.
Greene County
Evidence-backed local evidence
$850-$1515
Tennessee EPHT Radon Data: 40.9% 4.0+
Greene County is a strong cost page because it pairs Tennessee EPHT Radon Data: 40.9% 4.0+ with a local housing base of 32,300 units and a modeled planning range of $850-$1515.
Robertson County
Evidence-backed local evidence
$850-$1515
Tennessee EPHT Radon Data: 31.2% 4.0+
Robertson County is a strong cost page because it pairs Tennessee EPHT Radon Data: 31.2% 4.0+ with a local housing base of 28,703 units and a modeled planning range of $850-$1515.
Carter County
Evidence-backed local evidence
$850-$1515
Tennessee EPHT Radon Data: 33.3% 4.0+
Carter County is a strong cost page because it pairs Tennessee EPHT Radon Data: 33.3% 4.0+ with a local housing base of 27,881 units and a modeled planning range of $850-$1515.
Hamblen County
Evidence-backed local evidence
$850-$1515
Tennessee EPHT Radon Data: 44.4% 4.0+
Hamblen County is a strong cost page because it pairs Tennessee EPHT Radon Data: 44.4% 4.0+ with a local housing base of 27,565 units and a modeled planning range of $850-$1515.
Hawkins County
Evidence-backed local evidence
$850-$1515
Tennessee EPHT Radon Data: 34.1% 4.0+
Hawkins County is a strong cost page because it pairs Tennessee EPHT Radon Data: 34.1% 4.0+ with a local housing base of 27,138 units and a modeled planning range of $850-$1515.
County estimates
Open a Tennessee 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 Tennessee?
Price ranges across Tennessee 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.