Pennsylvania 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 PA 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
Pennsylvania 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
Pennsylvania requires radon disclosure through the Seller's Property Disclosure Statement. The PA DEP also provides radon-specific guidance for real estate transactions.
State licensing required
Pennsylvania requires certification for radon testing and mitigation professionals through the PA DEP.
PA Cost Starting Point
Pennsylvania cost range by foundation
Basement
$1010-$1817
Use this when the home has a basement or lowest-level slab that supports a standard sub-slab suction system.
Slab-on-Grade
$959-$1715
Slab homes can price differently when finished space, routing, or core drilling complicates the system path.
Crawl Space
$1512-$2770
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. Pennsylvania requires radon disclosure through the Seller's Property Disclosure Statement. The PA DEP also provides radon-specific guidance for real estate transactions.
Mitigation licensing: State licensing can add contractor and permit friction. Pennsylvania requires certification for radon testing and mitigation professionals through the PA DEP.
EPA zone mix in Pennsylvania
49
Zone 1
17
Zone 2
1
Zone 3
67 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
Pennsylvania 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.
67
Listed
67
Evidence
67
Measured
Best county pages to open first
Philadelphia County
Evidence-backed local evidence
$1010-$1817
CDC EPHT Network Radon Tests from Labs: 12.4% 4.0+
Philadelphia County is a strong cost page because it pairs CDC EPHT Network Radon Tests from Labs: 12.4% 4.0+ with a local housing base of 730,630 units and a modeled planning range of $1010-$1817.
Allegheny County
Evidence-backed local evidence
$1010-$1817
Pennsylvania DEP Radon Test Data by ZIP Code: 5.2 pCi/L average
Allegheny County is a strong cost page because it pairs Pennsylvania DEP Radon Test Data by ZIP Code: 5.2 pCi/L average with a local housing base of 602,734 units and a modeled planning range of $1010-$1817.
Montgomery County
Evidence-backed local evidence
$1010-$1817
Pennsylvania DEP Radon Test Data by ZIP Code: 4 pCi/L average
Montgomery County is a strong cost page because it pairs Pennsylvania DEP Radon Test Data by ZIP Code: 4 pCi/L average with a local housing base of 346,692 units and a modeled planning range of $1010-$1817.
Bucks County
Demand cohort local evidence
$1010-$1817
Pennsylvania DEP Radon Test Data by ZIP Code: 4.8 pCi/L average
Bucks County is a strong cost page because it pairs Pennsylvania DEP Radon Test Data by ZIP Code: 4.8 pCi/L average with a local housing base of 255,599 units and a modeled planning range of $1010-$1817.
Delaware County
Evidence-backed local evidence
$1010-$1817
Pennsylvania DEP Radon Test Data by ZIP Code: 2.9 pCi/L average
Delaware County is a strong cost page because it pairs Pennsylvania DEP Radon Test Data by ZIP Code: 2.9 pCi/L average with a local housing base of 229,039 units and a modeled planning range of $1010-$1817.
Lancaster County
Evidence-backed local evidence
$1010-$1817
Pennsylvania DEP Radon Test Data by ZIP Code: 10.4 pCi/L average
Lancaster County is a strong cost page because it pairs Pennsylvania DEP Radon Test Data by ZIP Code: 10.4 pCi/L average with a local housing base of 216,592 units and a modeled planning range of $1010-$1817.
Chester County
Demand cohort local evidence
$1010-$1817
Pennsylvania DEP Radon Test Data by ZIP Code: 5.9 pCi/L average
Chester County is a strong cost page because it pairs Pennsylvania DEP Radon Test Data by ZIP Code: 5.9 pCi/L average with a local housing base of 208,672 units and a modeled planning range of $1010-$1817.
York County
Evidence-backed local evidence
$1010-$1817
Pennsylvania DEP Radon Test Data by ZIP Code: 11.8 pCi/L average
York County is a strong cost page because it pairs Pennsylvania DEP Radon Test Data by ZIP Code: 11.8 pCi/L average with a local housing base of 187,450 units and a modeled planning range of $1010-$1817.
Berks County
Evidence-backed local evidence
$1010-$1817
Pennsylvania DEP Radon Test Data by ZIP Code: 11 pCi/L average
Berks County is a strong cost page because it pairs Pennsylvania DEP Radon Test Data by ZIP Code: 11 pCi/L average with a local housing base of 170,678 units and a modeled planning range of $1010-$1817.
Westmoreland County
Evidence-backed local evidence
$1010-$1817
Pennsylvania DEP Radon Test Data by ZIP Code: 6 pCi/L average
Westmoreland County is a strong cost page because it pairs Pennsylvania DEP Radon Test Data by ZIP Code: 6 pCi/L average with a local housing base of 168,183 units and a modeled planning range of $1010-$1817.
Luzerne County
Evidence-backed local evidence
$1010-$1817
Pennsylvania DEP Radon Test Data by ZIP Code: 4.7 pCi/L average
Luzerne County is a strong cost page because it pairs Pennsylvania DEP Radon Test Data by ZIP Code: 4.7 pCi/L average with a local housing base of 150,885 units and a modeled planning range of $1010-$1817.
Lehigh County
Evidence-backed local evidence
$1010-$1817
Pennsylvania DEP Radon Test Data by ZIP Code: 10.5 pCi/L average
Lehigh County is a strong cost page because it pairs Pennsylvania DEP Radon Test Data by ZIP Code: 10.5 pCi/L average with a local housing base of 149,876 units and a modeled planning range of $1010-$1817.
Northampton County
Demand cohort local evidence
$1010-$1817
Pennsylvania DEP Radon Test Data by ZIP Code: 9.5 pCi/L average
Northampton County is a strong cost page because it pairs Pennsylvania DEP Radon Test Data by ZIP Code: 9.5 pCi/L average with a local housing base of 127,724 units and a modeled planning range of $1010-$1817.
Dauphin County
Evidence-backed local evidence
$1010-$1817
Pennsylvania DEP Radon Test Data by ZIP Code: 10.8 pCi/L average
Dauphin County is a strong cost page because it pairs Pennsylvania DEP Radon Test Data by ZIP Code: 10.8 pCi/L average with a local housing base of 126,567 units and a modeled planning range of $1010-$1817.
Erie County
Evidence-backed local evidence
$1010-$1817
Pennsylvania DEP Radon Test Data by ZIP Code: 4.6 pCi/L average
Erie County is a strong cost page because it pairs Pennsylvania DEP Radon Test Data by ZIP Code: 4.6 pCi/L average with a local housing base of 119,910 units and a modeled planning range of $1010-$1817.
Cumberland County
Evidence-backed local evidence
$1010-$1817
Pennsylvania DEP Radon Test Data by ZIP Code: 9.7 pCi/L average
Cumberland County is a strong cost page because it pairs Pennsylvania DEP Radon Test Data by ZIP Code: 9.7 pCi/L average with a local housing base of 109,154 units and a modeled planning range of $1010-$1817.
Lackawanna County
Evidence-backed local evidence
$1010-$1817
Pennsylvania DEP Radon Test Data by ZIP Code: 3.9 pCi/L average
Lackawanna County is a strong cost page because it pairs Pennsylvania DEP Radon Test Data by ZIP Code: 3.9 pCi/L average with a local housing base of 99,900 units and a modeled planning range of $1010-$1817.
Washington County
Evidence-backed local evidence
$1010-$1817
Pennsylvania DEP Radon Test Data by ZIP Code: 4.9 pCi/L average
Washington County is a strong cost page because it pairs Pennsylvania DEP Radon Test Data by ZIP Code: 4.9 pCi/L average with a local housing base of 97,031 units and a modeled planning range of $1010-$1817.
Butler County
Evidence-backed local evidence
$1010-$1817
Pennsylvania DEP Radon Test Data by ZIP Code: 8.9 pCi/L average
Butler County is a strong cost page because it pairs Pennsylvania DEP Radon Test Data by ZIP Code: 8.9 pCi/L average with a local housing base of 85,479 units and a modeled planning range of $1010-$1817.
Monroe County
Evidence-backed local evidence
$1010-$1817
Pennsylvania DEP Radon Test Data by ZIP Code: 8.3 pCi/L average
Monroe County is a strong cost page because it pairs Pennsylvania DEP Radon Test Data by ZIP Code: 8.3 pCi/L average with a local housing base of 79,377 units and a modeled planning range of $1010-$1817.
County estimates
Open a Pennsylvania 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 Pennsylvania?
Price ranges across Pennsylvania 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.