Pennsylvania homeowners pay $843–$2,529 for a professionally installed active sub-slab depressurization (ASD) system. Cost depends on foundation type, home size, number of suction points, and regional labor rates. DIY test kits cost $15–$40. Professional diagnostic testing runs $150–$700.
Radon Mitigation Cost in Pennsylvania: 2026 Price Guide
Pennsylvania's radon mitigation market spans 29 counties of Zone 1 and Zone 2 risk, with homes ranging from pre-Civil War stone rowhouses in Reading to modern poured-concrete builds in suburban Pittsburgh. That range in construction type directly drives the $843–$2,529 spread in installation costs. This guide breaks down every cost component by foundation type, home size, equipment specification, and city-level market rate.
How Much Does Radon Mitigation Cost in Pennsylvania?
The installed cost of a standard active sub-slab depressurization (ASD) system in Pennsylvania ranges from $843 at the low end (small poured-concrete basement, single suction point, rural central PA labor rates) to $2,529 at the high end (multi-point system, complex foundation, southeastern PA labor rates). All installations must be performed by a PA DEP-certified professional under the Radon Certification Act.
ASD System Cost Breakdown: $843–$2,529
| Component | Typical Cost | Notes |
|---|---|---|
| Initial diagnostic / pressure field test | $0–$150 | Often included in installation quote |
| Core drilling (suction point) | $75–$150 per point | Poured slab; more for block or stone |
| PVC pipe routing (interior) | $100–$300 | Depends on floors penetrated, run length |
| PVC pipe routing (exterior) | $150–$400 | If routed outside the building envelope |
| Inline fan (RadonAway RP145 or equiv.) | $150–$300 | Attic or crawlspace mount adds cost |
| Electrical connection for fan | $75–$200 | If new circuit required |
| U-tube manometer | $20–$40 | Visual system performance indicator |
| Slab penetration sealing | $50–$150 | Critical for system effectiveness |
| Post-mitigation radon test | $0–$150 | Included by reputable contractors |
| Total — single suction point | $843–$1,600 | Most poured-concrete basements |
| Total — two suction points | $1,200–$2,100 | Larger homes, split foundations |
| Total — complex foundation | $1,600–$2,529+ | Block wall, stone, slab-on-grade |
Factors That Affect Price
Four variables drive almost all price variation in Pennsylvania ASD installations:
Foundation type is the single biggest cost driver. Poured-concrete basements respond to a single core-drilled suction point and are the cheapest to mitigate. Hollow concrete-block foundations allow radon to accumulate in the block voids — these require either multiple sub-slab points or dedicated block-wall depressurization using sealed suction applied to the block cores. Stone foundations from pre-1920 construction are the most complex and expensive.
Home size and slab area determine how many suction points are needed to achieve adequate pressure field extension across the entire sub-slab footprint. Homes under 1,500 sq ft typically need one point; 1,500–3,000 sq ft may need two; above 3,000 sq ft requires diagnostic pressure testing to determine coverage.
Pipe routing complexity affects labor time. A system that can route up through an interior closet and into an attic is significantly cheaper than one requiring exterior routing around HVAC equipment, through multiple finished floors, or via a complex crawlspace layout.
Regional labor rates vary across the Commonwealth. Philadelphia and the southeastern corridor (Berks, Lehigh, Montgomery counties) run $100–$200 higher than rural central PA (Centre, Clinton, Lycoming) or western PA (Allegheny, Westmoreland) for comparable jobs.
Why Stone and Pre-1950 Foundations Cost More
Pennsylvania's older housing stock — particularly rowhouses in Reading, Allentown, Scranton, and Wilkes-Barre, and Victorian-era homes throughout the anthracite and Reading Prong regions — frequently features stone or rubble-mortar foundations with no uniform sub-slab surface. Standard ASD core drilling is not possible because there is no continuous concrete slab.
Mitigation approaches for these properties include: sub-membrane depressurization (a polyethylene barrier is laid over the dirt or rubble floor and suction applied beneath it), drain tile depressurization (suction applied to existing perimeter drain tile loops), or block-wall depressurization applied to above-grade exposed foundation sections. Each approach requires more diagnostic work, more materials, and more labor than a standard slab core-drill — often pushing total project cost to $1,800–$2,529 or above. For these properties, always get two or three quotes from DEP-certified contractors familiar with pre-1950 construction.
What Does Radon Testing Cost in Pennsylvania?
Testing is a separate cost from mitigation and should always precede it. Pennsylvania homeowners have multiple testing options across a wide price range — from $15 DIY kits to $700 professional diagnostic tests.
DIY Test Kits ($15–$40) vs Professional Testing ($150–$700)
DIY charcoal canisters ($15–$40 including lab analysis) are the most common entry point for Pennsylvania homeowners. They are placed in the lowest livable level for 48–96 hours under closed-house conditions, then mailed to a lab. Results arrive within a week. Limitations: they provide a single data point, they are sensitive to placement location, and they do not capture seasonal variation.
Professional testing with a continuous radon monitor (CRM) ($150–$350 for residential) provides time-series data — typically hourly readings over 48–96 hours — which allows the tester to identify spikes, pressure differentials, and anomalies that a single charcoal canister misses. For real estate transactions, CRM testing by a DEP-certified tester is the standard. Diagnostic testing for complex or multi-unit properties runs $350–$700. For a full breakdown of radon testing and mitigation requirements specific to PA real estate transactions, see the PA Home Buyer & Seller Radon Guide.
Short-Term vs Long-Term Testing: When to Use Each
Short-term tests (48–96 hours) are appropriate for real estate transactions, initial screening, and post-mitigation verification. They require closed-house conditions (windows closed, no HVAC cycling, no fireplace use) for 12 hours before and during the test. Results reflect conditions during the test window — not annual average exposure.
Long-term tests (90+ days) using alpha-track detectors ($25–$75 for the device plus lab) provide a more representative annual average, accounting for seasonal variation. In Pennsylvania, radon levels typically peak in winter when homes are sealed and the stack effect is strongest — a short-term winter test may overstate annual average exposure, while a summer test may understate it. For homeowners without a time constraint (not in a transaction), long-term testing is the more accurate approach.
Post-Mitigation Testing: The 24-Hour Retest Protocol
After ASD installation, a post-mitigation test is required before the job is considered complete. Industry standard is a minimum 24-hour closed-house CRM test in the lowest livable area. If the contractor does not include post-mitigation testing in the quoted price, add $150–$300 to the total project budget. Any result at or above 4.0 pCi/L after mitigation means the system requires adjustment — this should be covered by the contractor without additional charge under a standard workmanship warranty.
Pennsylvania home sellers and buyers should also review our PA Radon & Home Sale guide covering disclosure law and mitigation timelines.
What Equipment Is Used in Pennsylvania Radon Mitigation?
Pennsylvania DEP-certified contractors follow ANSI-AARST standards for ASD system component selection. The equipment choices below represent what the majority of professional installations in the Commonwealth use.
The RadonAway RP145 for Residential ASD Systems
The RadonAway RP145 is the dominant residential inline fan in Pennsylvania installations. Rated at 160 CFM at 0.0" water column with a static pressure rating suitable for most single-point residential applications, it handles the majority of poured-concrete basement jobs under 2,500 sq ft. It operates at 33 watts and produces approximately 55 dB at 10 feet — quiet enough for attic or crawlspace mounting without noise complaints.
For homes requiring higher airflow (large slab area, multiple points, high sub-slab permeability), contractors may specify the RadonAway GP301 or RP265. For very tight sub-slab conditions (low permeability, significant suction resistance), the RadonAway GP401 high-static fan is appropriate. Fan selection is a diagnostic decision — a properly trained DEP-certified contractor will perform a sub-slab communication test before specifying equipment.
Monitoring Hardware: Airthings View Plus for Continuous Tracking
The Airthings View Plus ($299 retail) provides continuous radon monitoring with hourly readings, long-term trend tracking, and particulate matter / CO₂ / VOC sensing on a single device. It connects to the Airthings app and provides radon history exportable for record-keeping. For homeowners who want ongoing visibility after mitigation — particularly in Zone 1 counties where seasonal variation is significant — it is the most practical consumer-grade option.
For real estate transactions, continuous monitoring devices cannot substitute for a CRM test performed by a DEP-certified tester under closed-house protocol. Consumer monitors are appropriate for ongoing household monitoring, not for disclosure documentation.
U-Tube Manometer for System Verification
Every ANSI-AARST-compliant ASD installation includes a U-tube manometer — a simple liquid-filled pressure gauge installed on the suction pipe, visible at the basement level. When the fan is operating, the liquid column should show a differential indicating negative pressure beneath the slab. A flat reading (no differential) indicates the fan has failed or the system has lost suction — the homeowner visible check that the system is working. U-tube manometers cost $20–$40 and should be checked quarterly.
Radon Mitigation Cost by City in Pennsylvania
Cost ranges below reflect local market data for DEP-certified ASD installations, sourced from contractor pricing across each city's service area. Ranges account for foundation type variation within each market — a standard poured-concrete install will fall near the low end; complex or multi-point systems near the high end.
| City | County | EPA Zone | ASD Cost Range |
|---|---|---|---|
| Jamestown | Mercer County | Zone 2 | $825–$2,100 |
| Johnstown | Cambria County | Zone 1 | $825–$2,250 |
| Columbia | Lancaster County | Zone 2 | $850–$2,150 |
| Corry | Erie County | Zone 2 | $850–$2,100 |
| Meadville | Crawford County | Zone 2 | $850–$2,100 |
| Warren | Warren County | Zone 2 | $850–$2,100 |
| Titusville | Crawford County | Zone 2 | $850–$2,100 |
| Oil City | Venango County | Zone 2 | $850–$2,100 |
| Sharon | Mercer County | Zone 2 | $850–$2,150 |
| Clearfield | Clearfield County | Zone 2 | $850–$2,150 |
| Snow Shoe | Centre County | Zone 1 | $850–$2,200 |
| Mifflintown | Juniata County | Zone 1 | $850–$2,000 |
| Lewistown | Mifflin County | Zone 1 | $850–$2,000 |
| New Bloomfield | Perry County | Zone 1 | $850–$2,000 |
| Huntingdon | Huntingdon County | Zone 1 | $850–$2,000 |
| Bedford | Bedford County | Zone 1 | $850–$2,000 |
| Danville | Montour County | Zone 1 | $850–$2,000 |
| Sunbury | Northumberland County | Zone 1 | $850–$2,000 |
| Middleburg | Snyder County | Zone 1 | $850–$2,000 |
| Bloomsburg | Columbia County | Zone 1 | $850–$2,000 |
| McConnellsburg | Fulton County | Zone 1 | $850–$2,000 |
| Erie | Erie County | Zone 2 | $875–$2,200 |
| Lancaster | Lancaster County | Zone 2 | $875–$2,200 |
| Carbondale | Lackawanna County | Zone 2 | $875–$2,200 |
| Hawley | Wayne County | Zone 2 | $875–$2,150 |
| York | York County | Zone 2 | $875–$2,200 |
| Honesdale | Wayne County | Zone 2 | $875–$2,150 |
| Nanticoke | Luzerne County | Zone 1 | $875–$2,200 |
| Jersey Shore | Lycoming County | Zone 1 | $875–$2,250 |
| Altoona | Blair County | Zone 1 | $875–$2,350 |
| Lewisburg | Union County | Zone 1 | $895–$2,400 |
| Harrisburg | Dauphin County | Zone 2 | $900–$2,300 |
| Scranton | Lackawanna County | Zone 2 | $900–$2,250 |
| Pittston | Luzerne County | Zone 2 | $900–$2,250 |
| Wilkes-Barre | Luzerne County | Zone 2 | $900–$2,300 |
| Hershey | Dauphin County | Zone 2 | $900–$2,300 |
| Williamsport | Lycoming County | Zone 1 | $900–$2,300 |
| Gettysburg | Adams County | Zone 1 | $900–$2,400 |
| Hanover | York County | Zone 1 | $900–$2,350 |
| New Castle | Lawrence County | Zone 1 | $900–$2,200 |
| Uniontown | Fayette County | Zone 1 | $900–$2,200 |
| Waynesburg | Greene County | Zone 2 | $900–$2,100 |
| Indiana | Indiana County | Zone 1 | $900–$2,200 |
| Kittanning | Armstrong County | Zone 1 | $900–$2,200 |
| Clarion | Clarion County | Zone 1 | $900–$2,150 |
| Brookville | Jefferson County | Zone 1 | $900–$2,150 |
| Lebanon | Lebanon County | Zone 1 | $900–$2,100 |
| Chambersburg | Franklin County | Zone 1 | $900–$2,050 |
| Stroudsburg | Monroe County | Zone 2 | $925–$2,300 |
| Shippensburg | Cumberland County | Zone 1 | $925–$2,450 |
| Pittsburgh | Allegheny County | Zone 2 | $950–$2,400 |
| Hazleton | Luzerne County | Zone 1 | $950–$2,400 |
| Mechanicsburg | Cumberland County | Zone 1 | $950–$2,500 |
| Elizabethtown | Lancaster County | Zone 1 | $950–$2,500 |
| Hamburg | Berks County | Zone 1 | $950–$2,500 |
| Centre Hall | Centre County | Zone 1 | $950–$2,500 |
| Marietta | Lancaster County | Zone 1 | $950–$2,450 |
| Canonsburg | Washington County | Zone 1 | $950–$2,300 |
| Greensburg | Westmoreland County | Zone 1 | $950–$2,250 |
| Butler | Butler County | Zone 1 | $950–$2,200 |
| Beaver | Beaver County | Zone 1 | $950–$2,250 |
| Somerset | Somerset County | Zone 1 | $950–$2,250 |
| Pottsville | Schuylkill County | Zone 1 | $950–$2,100 |
| Jim Thorpe | Carbon County | Zone 1 | $950–$2,100 |
| Towanda | Bradford County | Zone 2 | $950–$2,050 |
| Montrose | Susquehanna County | Zone 2 | $950–$2,050 |
| Tunkhannock | Wyoming County | Zone 1 | $950–$2,100 |
| Laporte | Sullivan County | Zone 2 | $950–$2,100 |
| Smethport | McKean County | Zone 2 | $950–$2,100 |
| Emporium | Cameron County | Zone 2 | $950–$2,100 |
| Ridgway | Elk County | Zone 1 | $950–$2,100 |
| Tionesta | Forest County | Zone 2 | $950–$2,050 |
| Wellsboro | Tioga County | Zone 2 | $950–$2,050 |
| Coudersport | Potter County | Zone 2 | $950–$2,100 |
| Carlisle | Cumberland County | Zone 1 | $975–$2,400 |
| Lock Haven | Clinton County | Zone 1 | $975–$2,400 |
| Doylestown | Bucks County | Zone 1 | $975–$2,650 |
| Allentown | Lehigh County | Zone 1 | $1,000–$2,500 |
| Bethlehem | Northampton County | Zone 1 | $1,000–$2,500 |
| Easton | Northampton County | Zone 1 | $1,000–$2,450 |
| Philipsburg | Centre County | Zone 1 | $1,000–$2,550 |
| Milford | Pike County | Zone 1 | $1,000–$2,600 |
| Fleetwood | Berks County | Zone 1 | $1,000–$2,600 |
| Marcus Hook | Delaware County | Zone 1 | $1,000–$2,500 |
| Pottstown | Montgomery County | Zone 1 | $1,025–$2,500 |
| State College | Centre County | Zone 1 | $1,050–$2,650 |
| Reading | Berks County | Zone 1 | $1,050–$2,529 |
| Bellefonte | Centre County | Zone 1 | $1,050–$2,650 |
| Kutztown | Berks County | Zone 1 | $1,050–$2,529 |
| Chester | Delaware County | Zone 1 | $1,050–$2,650 |
| Phoenixville | Chester County | Zone 1 | $1,050–$2,700 |
| Ridley Park | Delaware County | Zone 1 | $1,050–$2,650 |
| New Hope | Bucks County | Zone 1 | $1,050–$2,850 |
| Philadelphia | Philadelphia County | Zone 1 | $1,100–$2,800 |
| King of Prussia | Montgomery County | Zone 1 | $1,100–$2,800 |
| Media | Delaware County | Zone 1 | $1,100–$2,700 |
Pennsylvania Radon Cost Summary
| Service | Cost Range | Notes |
|---|---|---|
| Standard ASD Install (single point) | $843–$1,600 | Poured concrete basement, under 1,500 sq ft |
| ASD Install (two suction points) | $1,200–$2,100 | 1,500–3,000 sq ft, or divided slab |
| ASD Install (complex foundation) | $1,600–$2,529+ | Hollow block, stone, slab-on-grade |
| DIY Charcoal Test Kit | $15–$40 | Includes lab fee; 48–96 hour test |
| Professional Short-Term CRM Test | $150–$350 | DEP-certified tester; required for real estate |
| Professional Diagnostic Test (commercial) | $350–$700 | Multi-unit, school, or complex property |
| Long-Term Alpha-Track Test | $25–$75 | Device + lab; 90+ day deployment |
| Post-Mitigation Retest | $150–$300 | Should be included in installation quote |
| Airthings View Plus (continuous monitor) | ~$299 | Consumer device; not for disclosure purposes |
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Find DEP-Certified Pros Near You →Related Guides
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- Radon in Philadelphia, PA: Zone 1 City, 42.3% Exceedance Rate →
- Radon in Harrisburg, PA: Zone 2 Classification, Zone 1 Risk Pockets →
- Radon in Lancaster, PA: Farmhouses, Limestone, and Hidden Risk →
Radon Mitigation Cost by Pennsylvania City
Installation costs range from $843–$2,529 across Pennsylvania. Select your city for local pricing data, average radon levels, and DEP-certified contractors serving your area.