How Much Does Radon Mitigation Cost in York County, PA? (2026 Price Guide)

National cost guides put radon mitigation at 'around $1,200,' which is roughly right and almost useless, because the number for your house depends on what is under it. Here is how pricing actually works in York County, based on what we install every week.

A standard active sub-slab depressurization system — one suction point cored through a poured or block basement slab, an exterior-mounted fan, sealed penetrations and a post-mitigation test — costs between $900 and $1,500 in York County. This is the most common install in East York, Springettsbury, Manchester and York Township, where porous limestone under the slab lets a single point depressurize the whole footprint.

Using an existing sump pit as the suction point, with a sealed gasketed lid and a radon-resistant drain, runs $1,000 to $1,600. It avoids coring a finished floor and doubles as moisture control, which makes it popular in the 1960s–1980s ranches around Dallastown, Red Lion and Dover.

Concealed attic-routed systems — pipe run through a closet or garage to a fan in the attic, exhausting through the roof — cost $1,400 to $2,200. The extra is labor and roof flashing. Homeowners in York's historic districts, HOA subdivisions in Springettsbury and anyone who doesn't want white PVC on the side of the house choose this.

Two suction points on a shared fan add $600 to $1,000, bringing a typical job to $1,800–$2,600. You need this when the house is large, when an addition sits on a separate slab, or when the soil is tight — the shale ground around Dover and the fractured rock around Red Lion and Windsor are where we most often need it. A pressure-field extension test during the diagnostic visit tells you in advance, which is why we never quote from the phone.

Block-wall depressurization combined with sub-slab, for hollow concrete block foundations where soil gas fills the wall cores, runs $2,000 to $3,000. Crawl space sub-membrane systems cost $1,800 to $3,500 depending on square footage and access. Well-water aeration systems are a separate category at $3,500 to $6,000.

What should be included in any York County quote: a pre-bid visual inspection (required by Pennsylvania DEP rules), sealing of slab cracks, the floor-wall joint and penetrations, a U-tube manometer, a system label with the contractor's DEP certification number, an exhaust terminating above the eave and away from windows, and a post-mitigation test. If a quote is cheap because it leaves those out, it isn't cheap.

Ongoing cost is small: a radon fan draws 20–90 watts, or roughly $3–$10 a month in electricity, and fans last 8 to 12 years before replacement at $350–$650. Retesting every two years is $150–$200 or a $30 kit.

One last local note: Pennsylvania has no state rebate for radon mitigation, but a system installed before listing routinely saves more than it costs in a York County sale, because it removes the single most common inspection contingency.