Massachusetts · 2026 pricing
Mold remediation cost in Massachusetts
A typical 50 sqft basement remediation in Massachusetts runs $2,269–$4,637 with a state cost factor of 1.38× vs. the US average. Severity level is the largest single driver.
Mold Remediation Cost Calculator
Estimated cost
$995–$2,321
Typical: $1,658 · state factor 1.02×
Line items
- Base area cost$1,658
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Estimates are educational — actual quotes from local pros may differ based on site conditions, permits, and seasonal demand.
Why Massachusetts runs above the US average
Mold remediation pricing in Massachusetts reflects three regional factors: licensed remediation contractor wages, humidity-driven demand density, and the supply of IICRC-certified firms. High-humidity coastal states see higher demand-side pricing as backlog stretches scheduling windows. The 1.38× factor is calibrated from BLS data and 2025 HomeAdvisor regional cost reports.
Local market in Massachusetts
Massachusetts DEP-licensing is the gold standard among state remediator credentials. 40+ DEP-licensed firms statewide, concentrated in Suffolk (Boston), Middlesex (Cambridge, Lowell), Worcester, and Bristol (Fall River, New Bedford) counties. Boston metro has same-day availability at the larger firms; the Cape and Islands run 2-4 weeks during the summer rental-prep season.
Permits, code, and licensing in Massachusetts
MGL Chapter 21E and 105 CMR 410 (State Sanitary Code) govern mold work. DEP-licensed Mold Specialist is required for Level 3+; the lower tiers require a Construction Supervisor License with mold endorsement. Boston, Cambridge, and Brookline each have their own additional permit pathways with $100-$400 fees.
Top metros in Massachusetts
Strongest demand and contractor density: Boston, Worcester, Springfield, Cambridge, Lowell.