Cherry Hill's humid southern New Jersey climate pushes average summer relative humidity above 65%, and Camden County receives about 46 inches of rain annually with no reliable dry season. Clay-heavy Coastal Plain soils retain groundwater after storms, driving hydrostatic seepage into mid-century block foundations before growth is ever visible.
The most common mold losses in Cherry Hill involve basements in 1960s–1980s split-levels and colonials, where seepage soaks framing, insulation, and stored materials. Crawl spaces in ranch homes lacking vapor barriers also sustain year-round growth. Left unaddressed, a localized colony spreads into wall cavities and HVAC systems.
New Jersey has no dedicated mold license, but contractors must hold Home Improvement Contractor (HIC) registration and carry IICRC AMRT certification. Request a written scope referencing IICRC S520, proof of insurance, and post-remediation clearance from an independent third-party hygienist — not the same firm that did the work.