remediation

Professional Mold Removal Cost in 2026: Real Prices by Room, Type & State

Professional Mold Removal Cost in 2026 Professional mold removal costs $1,200 to $3,750 for a typical job in 2026, averaging $2,368 nationally, or $10 to $25 per square foot. A small bathroom spot job runs $500 to $1,500. A single-room basement remediation lands $1,500 to $4,500. Whole-house projects reach $10,000 to $30,000 or more once rebuild costs are added. Black mold (Stachybotrys) adds a 25–50% premium on top of those numbers. Get a project-specific number with our Mold Remediation Cost Calculator(/construction/mold-remediation-service-cost-calculator) before you collect a single bid. Across remediation industry guides and IICRC contractor breakdowns, the same pattern shows up again and again: the homeowners who overpay are the ones who accept a single "$3,500 remediation" quote without ever pinning down the scope. The most expensive mistake is paying to remove visible mold while leaving the moisture source — a foundation leak, failed vent fan, or HVAC condensate clog —...