Mold remediation cost, city by city

How to read these numbers — before you compare anything

Every row starts from the same national published framework: $10–$25 per square foot (HomeAdvisor) of affected material, $1,100–$3,400 for a typical professional job, and $300–$650 for an inspection with sampling where testing is warranted. Severe cases — whole-home growth, HVAC contamination, mold behind finished walls throughout — regularly reach $10,000–$30,000, and that figure is not adjusted per city. The only thing that differs between two rows below is a single cost factor.

That factor is our own editorial estimate, not a published index. It is authored at roughly state granularity and rounded to two decimals, which means the 30 cities below resolve to only 10 distinct factors — so cities sharing a factor print identical figures, in different states. It runs from ×0.85 (Jackson, MS) to ×0.97 (Grand Rapids, MI). Treat the national ranges as sourced, the local ones as our arithmetic, and an on-site assessment as the only real number.

Two things this table does not price. The EPA's rough DIY line — under about 10 square feet of visible growth is generally a careful homeowner cleanup — means the cheapest job on this page is often no job at all; the mold hub has the method. And remediation only holds if the moisture source is fixed, which is usually a plumbing or drainage bill sitting outside every range here.