A standard radon mitigation system in York County typically costs $800 to $1,500, with larger homes, extra suction points or a more complex foundation pushing the total toward $2,500. Crawlspace membrane systems usually run higher, often $1,500 to $3,000 or more. Foundation type drives the price, not how high the test result came back. A real price needs a site visit, not a phone estimate. These are typical ranges, not quotes.
Cost by system type (low / typical / high)
Active sub-slab depressurization: $800 / $1,150 / $2,500
Drain-tile suction: $700 / $1,000 / $1,800
Sump-pit suction: $650 / $950 / $1,700
Crawlspace membrane or sub-membrane suction: $1,500 / $2,200 / $3,000+
Block-wall suction: $900 / $1,300 / $2,200
Radon-resistant new construction (fan added to existing rough-in): $350 / $500 / $1,200
Cost by house type (typical range)
York row homes (shared party walls, often stone or early block foundations): $800 to $1,500
Split-levels: $900 to $1,800
Older stone-foundation homes: $1,000 to $2,200
Homes with crawlspaces: $1,500 to $3,000+
Slab-on-grade: $900 to $1,800
What drives the price
Foundation type: a simple poured basement slab is the cheapest to mitigate. A crawlspace, stone foundation or mixed foundation changes the method, not just the labor.
Number of suction points: usually the single biggest driver. A slab poured on clay or compacted fill often cannot be depressurized from one point.
Drain tile or a sump pit that already connects to the soil under the slab costs less, because it is already a suction field.
Crawlspaces cost more because there is no slab, so the contractor builds one from sealed heavy polyethylene sheeting.
Before you hire anyone
Pennsylvania law requires DEP certification for radon mitigation work. Verify any contractor's certification in the state's own public database. A real quote follows a site visit, and a test result alone does not set the price. 4 pCi/L is the EPA's action guideline.
Full cost guide with every table: https://radonmitigationyorkpennsylvania.com/cost
Prices reviewed September 2026. Published by Radon Mitigation York Pennsylvania, 96 S George St, York, PA 17401, (717) 356-9995, https://radonmitigationyorkpennsylvania.com