IICRC S520-compliant removal across every scenario — surface colonies, cavity infestations, post-water-event growth, HVAC contamination.
Category Assessment
📋Water Category Classification & Protocol Selection
Water source classification determines PPE requirements, containment tier, and disposal protocol on every North mold job. We assess and document the water category before work begins.
Containment
🔥Negative Air Containment Setup
Physical containment is established before any material removal — 6-mil poly barriers, zipper entries, HEPA negative air machines creating inward airflow, and sealed HVAC registers. Spore migration during removal is prevented, not managed after the fact.
Extraction
🔨Contaminated Material Removal
Mold-contaminated drywall, insulation, subfloor sections, and framing members are physically removed, double-bagged in heavy-duty poly, and disposed of per North, VA regulations. HEPA vacuuming of remaining structural surfaces removes loose spore material before treatment.
Treatment
💧EPA Biocide Application
EPA-registered biocide application on all remaining structural surfaces after extraction — category-appropriate product selection, documented application, and optional encapsulant for salvageable framing.
Drying
💨Structural Drying Where Needed
When residual moisture remains in structural materials after removal, we deploy desiccant or refrigerant dehumidifiers and air movers — logging daily psychrometric readings against IICRC drying targets until materials reach equilibrium moisture content.
Clearance
📄Independent Post-Removal Air Sampling
An independent industrial hygienist collects post-removal air samples from the treated zone and outdoor comparative samples — processed by an accredited laboratory. You receive a written clearance report, not just a contractor's assurance the job is done.