North Carolina 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 NC 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
North Carolina 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
North Carolina requires sellers to complete a Residential Property and Owners' Association Disclosure Statement, covering environmental hazards.
Credential note
North Carolina does not require specific radon licensing. NRPP or AARST certification is recommended.
NC Cost Starting Point
North Carolina 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. North Carolina requires sellers to complete a Residential Property and Owners' Association Disclosure Statement, covering environmental hazards.
Mitigation licensing: No state-specific mitigation license premium is modeled. North Carolina does not require specific radon licensing. NRPP or AARST certification is recommended.
EPA zone mix in North Carolina
8
Zone 1
31
Zone 2
61
Zone 3
100 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
North Carolina 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.
100
Listed
100
Evidence
100
Measured
Best county pages to open first
Iredell County
Demand cohort local evidence
$875-$1558
North Carolina DHHS Radon Data Map: 94 pCi/L high-end
Iredell County is a strong cost page because it pairs North Carolina DHHS Radon Data Map: 94 pCi/L high-end with a local housing base of 79,853 units and a modeled planning range of $875-$1558.
Clay County
Cost eligible local evidence
$875-$1558
North Carolina DHHS Radon Data Map: 98 pCi/L high-end
Clay County is a strong cost page because it pairs North Carolina DHHS Radon Data Map: 98 pCi/L high-end with a local housing base of 7,320 units and a modeled planning range of $875-$1558.
Buncombe County
Evidence-backed local evidence
$875-$1558
North Carolina DHHS Radon Data Map: 169 pCi/L high-end
Buncombe County is a strong cost page because it pairs North Carolina DHHS Radon Data Map: 169 pCi/L high-end with a local housing base of 130,081 units and a modeled planning range of $875-$1558.
Henderson County
Cost eligible local evidence
$875-$1558
North Carolina DHHS Radon Data Map: 440 pCi/L high-end
Henderson County is a strong cost page because it pairs North Carolina DHHS Radon Data Map: 440 pCi/L high-end with a local housing base of 56,744 units and a modeled planning range of $875-$1558.
Wake County
Cost eligible local evidence
$875-$1558
North Carolina DHHS Radon Data Map: 257 pCi/L high-end
Wake County is a strong cost page because it pairs North Carolina DHHS Radon Data Map: 257 pCi/L high-end with a local housing base of 466,760 units and a modeled planning range of $875-$1558.
Forsyth County
Cost eligible local evidence
$875-$1558
North Carolina DHHS Radon Data Map: 214 pCi/L high-end
Forsyth County is a strong cost page because it pairs North Carolina DHHS Radon Data Map: 214 pCi/L high-end with a local housing base of 171,040 units and a modeled planning range of $875-$1558.
Rockingham County
Cost eligible local evidence
$875-$1558
North Carolina DHHS Radon Data Map: 76 pCi/L high-end
Rockingham County is a strong cost page because it pairs North Carolina DHHS Radon Data Map: 76 pCi/L high-end with a local housing base of 43,586 units and a modeled planning range of $875-$1558.
Watauga County
Cost eligible local evidence
$875-$1558
North Carolina DHHS Radon Data Map: 388 pCi/L high-end
Watauga County is a strong cost page because it pairs North Carolina DHHS Radon Data Map: 388 pCi/L high-end with a local housing base of 32,783 units and a modeled planning range of $875-$1558.
Gaston County
Cost eligible local evidence
$875-$1558
North Carolina DHHS Radon Data Map: 69 pCi/L high-end
Gaston County is a strong cost page because it pairs North Carolina DHHS Radon Data Map: 69 pCi/L high-end with a local housing base of 98,616 units and a modeled planning range of $875-$1558.
Catawba County
Cost eligible local evidence
$875-$1558
North Carolina DHHS Radon Data Map: 49 pCi/L high-end
Catawba County is a strong cost page because it pairs North Carolina DHHS Radon Data Map: 49 pCi/L high-end with a local housing base of 71,047 units and a modeled planning range of $875-$1558.
Transylvania County
Cost eligible local evidence
$875-$1558
North Carolina DHHS Radon Data Map: 305 pCi/L high-end
Transylvania County is a strong cost page because it pairs North Carolina DHHS Radon Data Map: 305 pCi/L high-end with a local housing base of 19,072 units and a modeled planning range of $875-$1558.
Cherokee County
Cost eligible local evidence
$875-$1558
North Carolina DHHS Radon Data Map: 83 pCi/L high-end
Cherokee County is a strong cost page because it pairs North Carolina DHHS Radon Data Map: 83 pCi/L high-end with a local housing base of 18,006 units and a modeled planning range of $875-$1558.
Mecklenburg County
Cost eligible local evidence
$875-$1558
North Carolina DHHS Radon Data Map: 144 pCi/L high-end
Mecklenburg County is a strong cost page because it pairs North Carolina DHHS Radon Data Map: 144 pCi/L high-end with a local housing base of 481,307 units and a modeled planning range of $875-$1558.
Guilford County
Cost eligible local evidence
$875-$1558
North Carolina DHHS Radon Data Map: 114 pCi/L high-end
Guilford County is a strong cost page because it pairs North Carolina DHHS Radon Data Map: 114 pCi/L high-end with a local housing base of 233,332 units and a modeled planning range of $875-$1558.
Durham County
Cost eligible local evidence
$875-$1558
North Carolina DHHS Radon Data Map: 76 pCi/L high-end
Durham County is a strong cost page because it pairs North Carolina DHHS Radon Data Map: 76 pCi/L high-end with a local housing base of 145,518 units and a modeled planning range of $875-$1558.
Cumberland County
Cost eligible local evidence
$875-$1558
North Carolina DHHS Radon Data Map: 22 pCi/L high-end
Cumberland County is a strong cost page because it pairs North Carolina DHHS Radon Data Map: 22 pCi/L high-end with a local housing base of 142,702 units and a modeled planning range of $875-$1558.
New Hanover County
Cost eligible local evidence
$875-$1558
North Carolina DHHS Radon Data Map: 15 pCi/L high-end
New Hanover County is a strong cost page because it pairs North Carolina DHHS Radon Data Map: 15 pCi/L high-end with a local housing base of 114,625 units and a modeled planning range of $875-$1558.
Cleveland County
Cost eligible local evidence
$875-$1558
North Carolina DHHS Radon Data Map: 204 pCi/L high-end
Cleveland County is a strong cost page because it pairs North Carolina DHHS Radon Data Map: 204 pCi/L high-end with a local housing base of 43,782 units and a modeled planning range of $875-$1558.
Burke County
Cost eligible local evidence
$875-$1558
North Carolina DHHS Radon Data Map: 175 pCi/L high-end
Burke County is a strong cost page because it pairs North Carolina DHHS Radon Data Map: 175 pCi/L high-end with a local housing base of 39,773 units and a modeled planning range of $875-$1558.
Lincoln County
Cost eligible local evidence
$875-$1558
North Carolina DHHS Radon Data Map: 83 pCi/L high-end
Lincoln County is a strong cost page because it pairs North Carolina DHHS Radon Data Map: 83 pCi/L high-end with a local housing base of 37,715 units and a modeled planning range of $875-$1558.
County estimates
Open a North Carolina 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 North Carolina?
Price ranges across North Carolina 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.