Crawl Space Radon Mitigation in Whitehall
Crawl spaces are mitigated with sub-membrane depressurization: a sealed plastic membrane laid over the soil and a fan drawing from beneath it. Ohio's standards set the membrane at 6 mil polyethylene or heavier where the crawl is used for storage, with 12-inch sealed overlaps and mechanical fastening to walls and piers. Split-levels and ranch additions often pair it with sub-slab suction under the basement or slab. Whitehall sits within our service area for Greater Columbus and Central Ohio, with same-week scheduling typical for routine jobs.
Typical pricing in Whitehall
$1,800-$3,500
Pricing varies by job specifics. Free phone or on-site quotes; fixed pricing once the technician has assessed the job.
Crawl Space Radon Mitigation in Whitehall: a postwar 1950s inner-ring suburb of ranch and Cape Cod homes with a meaningful share of slab-on-grade construction foundations and Columbus-area geology
Crawl Space Radon Mitigation in Whitehall involves sub-membrane depressurization: a 20-mil polyethylene liner sealed to the crawl walls with an inline fan drawing soil gas from beneath, working on the crawl-space envelope where ground-source soil gas enters through bare earth. The service is the right scope for any crawl-space-foundation home testing above 4.0 pCi/L, in place of sub-slab depressurization which does not apply to crawl spaces.
Whitehall's postwar 1950s housing includes a meaningful share of slab-on-grade construction alongside standard full basements, and the two foundation types need different mitigation approaches. On slab homes without a basement to route through, the stack commonly runs up an open exterior wall rather than through a closet chase. Franklin County's Zone 1 designation applies to both foundation types equally, so foundation style rather than neighborhood decides the readings. Whitehall sits on geology that drives elevated regional radon exposure across the Columbus metro, including Franklin County.
Franklin County crawl-space work is uncommon inside Columbus and its poured-basement suburbs like Dublin and Hilliard, where full basements or slabs dominate, so this scope concentrates on the small share of older outlying parcels near the county line where crawl-space construction survives from before the county's subdivision-era building boom.
ANSI/AARST SGM-SF-2023, the standard for existing homes, calls for a sealed membrane and a system monitor, typically a manometer, showing continuous negative pressure beneath it. The Ohio Department of Health Radon Licensing Program oversees radon program compliance for Whitehall, and Ohio licensure under ORC 3723.02 applies to any contractor performing mitigation work in the state.
- County
- Franklin, OH
- Geology
- Regional radon-bearing soils
- EPA action level
- 4.0 pCi/L on long-term average
- Service category
- Mitigation