Mold remediation is one of those services where two quotes can vary by 5x, because two crews can be doing very different work. What a proper professional remediation looks like, so it is clear what the work covers.
Step 1: Inspection and source identification
Before anything is removed, the moisture source has to be identified. Remediating mold without fixing the leak guarantees its return. Expect a moisture meter, thermal imaging, and often RH logging over 24–48 hours.
Step 2: Containment
Plastic sheeting and zipper doors isolate the work area from the rest of the home. Negative air pressure (HEPA-filtered air scrubbers) keeps spores from migrating during demolition.
Step 3: Removal
Porous materials with active growth (drywall, insulation, carpet, soft wood) come out. Semi-porous materials (framing) are wire-brushed, HEPA-vacuumed, and treated. Bleach is generally not used — it is a surface fix on a deep problem.
Step 4: Treatment and sealing
Antimicrobial treatment is applied to remaining surfaces. In some cases an encapsulant sealer is used over treated wood to lock down any residual fragments and provide a clean visual reset.
Step 5: HEPA cleanup and clearance
A two-pass HEPA vacuum and damp-wipe of all surfaces in the containment area. Air scrubbers run for 24–48 hours post-cleanup. Independent third-party clearance testing (air sample comparison vs. outdoor baseline) is the gold standard.
Step 6: Reconstruction
Insulation, drywall, paint, finish carpentry. This is the visible part — but it is the last 10% of the job, not the first.