York Street Active Soil Depressurization (ASD) Mitigation System


York Street Mitigation
6.4 pCi/L initially, 0.4 pCi/L after – 94% reduction for ~$1250
Scope of work: Sealed 2 peripheral crawlspaces with vapor barrier and installed sub-slab suction. Routed exhaust through crowded utility room and behind chimney to preserve storage space and curb-appeal.

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