Rhode Island 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 RI 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
Rhode Island 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
Rhode Island requires sellers to disclose known environmental hazards through the Residential Real Estate Sales Disclosure.
Credential note
Rhode Island does not require specific radon licensing.
RI Cost Starting Point
Rhode Island cost range by foundation
Basement
$960-$1702
Use this when the home has a basement or lowest-level slab that supports a standard sub-slab suction system.
Slab-on-Grade
$904-$1590
Slab homes can price differently when finished space, routing, or core drilling complicates the system path.
Crawl Space
$1472-$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. Rhode Island requires sellers to disclose known environmental hazards through the Residential Real Estate Sales Disclosure.
Mitigation licensing: No state-specific mitigation license premium is modeled. Rhode Island does not require specific radon licensing.
EPA zone mix in Rhode Island
2
Zone 1
2
Zone 2
1
Zone 3
5 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
Rhode Island 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.
5
Listed
5
Evidence
5
Measured
Best county pages to open first
Providence County
Evidence-backed local evidence
$960-$1702
CDC EPHT Network Radon Tests from Labs: 16.8% 4.0+
Providence County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 16.8% 4.0+ with a local housing base of 276,370 units and a modeled planning range of $960-$1702.
Kent County
Evidence-backed local evidence
$960-$1702
CDC EPHT Network Radon Tests from Labs: 26.1% 4.0+
Kent County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 26.1% 4.0+ with a local housing base of 76,104 units and a modeled planning range of $960-$1702.
Washington County
Evidence-backed local evidence
$960-$1702
CDC EPHT Network Radon Tests from Labs: 39.1% 4.0+
Washington County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 39.1% 4.0+ with a local housing base of 65,689 units and a modeled planning range of $960-$1702.
Newport County
Evidence-backed local evidence
$960-$1702
CDC EPHT Network Radon Tests from Labs: 24.4% 4.0+
Newport 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 43,415 units and a modeled planning range of $960-$1702.
Bristol County
Cost eligible local evidence
$960-$1702
CDC EPHT Network Radon Tests from Labs: 14.8% 4.0+
Bristol County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 14.8% 4.0+ with a local housing base of 21,475 units and a modeled planning range of $960-$1702.
County estimates
Open a Rhode Island 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 Rhode Island?
Price ranges across Rhode Island 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.