Estimates only. Figures on this page are based on regional data and industry surveys. Actual costs vary by scope, materials, contractor, and location. Always get at least 3 quotes before proceeding. MoldGuide does not quote or guarantee any price.

Mold Remediation Cost Guide

Local price estimates for mold removal and remediation across the US. Find your city for cost ranges adjusted for local humidity, contractor market size, and state licensing requirements.

Typical Cost Ranges (National Averages)

ScopeAffected AreaTypical Cost
Small / surfaceUnder 10 sq ft$500 – $1,500
Medium10 – 100 sq ft$1,500 – $5,000
Large / structural100+ sq ft or HVAC$5,000 – $30,000+

Sources: EPA guidance, IICRC S520, HomeAdvisor/Angi market surveys. Estimates as of 2026.

What Affects Mold Remediation Cost?

Affected area size

The single biggest cost driver. Larger infestations require more containment, labor, and disposal.

Location in the home

Crawl spaces, wall cavities, and HVAC systems cost more to access and remediate than exposed surfaces.

Mold type

Stachybotrys (black mold) and other hazardous species require stricter containment protocols.

Structural damage

If drywall, framing, or flooring must be replaced, costs rise significantly.

State licensing

Some states (TX, FL, NY, LA, DC) require licensed mold contractors, which affects contractor availability and pricing.

Local labor market

Costs in high-demand metro areas typically run 20–40% higher than national averages.

Frequently Asked Questions

How much does mold remediation cost on average?

Most projects cost between $1,500 and $5,000. Small surface mold (under 10 sq ft) can run $500–$1,500. Large infestations involving HVAC or structural materials can reach $10,000–$30,000+. Get local estimates below.

Does homeowners insurance cover mold remediation?

Coverage depends on the cause. Mold from a sudden, covered event (burst pipe) is often covered. Mold from gradual neglect is typically excluded. Review your policy and contact your insurer before starting work.

Do I need an inspector before hiring a remediation contractor?

An independent inspection is strongly recommended. It defines the scope of work before you get quotes, and gives you an unbiased assessment. Using a separate inspector (not one who also does remediation) avoids a conflict of interest.

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Local Cost Guides by State

California 115 cities Texas 49 cities Florida 42 cities Illinois 15 cities Arizona 15 cities Washington 15 cities Colorado 14 cities Michigan 14 cities North Carolina 13 cities Massachusetts 11 cities Virginia 11 cities Georgia 10 cities New York 8 cities Indiana 8 cities Oregon 8 cities Nevada 8 cities Utah 8 cities Pennsylvania 7 cities Ohio 7 cities Tennessee 7 cities Missouri 7 cities Minnesota 7 cities Connecticut 7 cities New Jersey 7 cities Oklahoma 6 cities Maryland 6 cities Wisconsin 6 cities Louisiana 6 cities Alabama 6 cities Arkansas 5 cities New Mexico 4 cities Iowa 4 cities Kansas 4 cities South Carolina 4 cities Idaho 3 cities Rhode Island 3 cities Kentucky 2 cities Nebraska 2 cities New Hampshire 2 cities South Dakota 2 cities District of Columbia 1 city Alaska 1 city Mississippi 1 city Montana 1 city North Dakota 1 city Hawaii 1 city Maine 1 city Vermont 1 city West Virginia 1 city Wyoming 1 city Delaware 1 city

Cost estimates based on industry surveys, EPA guidance, and regional contractor market data. MoldGuide is a lead referral service and does not provide remediation services or guarantee any quoted price. Always obtain multiple quotes from licensed contractors before proceeding.