Mold Remediation Cost Calculator
Estimate remediation from affected area, severity, containment, drying needs, demo, and testing — then scale by state. Click any i for detail.
Affected area
Area type
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Area type
Presets set square footage. Choose custom if you already measured the affected surface. |
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Custom area (sq ft)
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Custom area
Wall and ceiling surface involved in cleaning/containment, not the whole home’s floor area. |
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Severity
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Severity
Light is surface cleaning. Moderate needs containment. Heavy involves more demolition and structural drying. |
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Containment
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Containment
Full containment with negative air is common when spores must be isolated from living space. |
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Water / drying
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Water / drying
Active moisture needs extraction and drying equipment on top of mold cleaning. |
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Demolition
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Demolition
Cut-out of wet drywall or extensive demo when materials can’t be cleaned in place. |
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Testing
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Testing
Some jobs use visual/moisture assessment only; clearance testing is an optional package. |
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Your state
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Your state
Scales midpoints vs U.S. average — not an inspection or contractor bid. |
How to use this calculator
- Pick an area preset or enter custom square footage.
- Choose severity and containment level.
- Set drying needs and demolition scope.
- Add testing if you expect lab or clearance work.
- Pick your state and review the itemized total.
Results explained
The headline itemizes remediation, containment, drying, demo, and testing after state scaling. Rebuild (new drywall/paint) is not included.
Quick reference: remediation building blocks
U.S.-average midpoints before state scaling.
| Line | Midpoint |
|---|---|
| Light remediation | $8 / sq ft |
| Moderate remediation | $18 / sq ft |
| Heavy remediation | $35 / sq ft |
| Full containment / negative air | $1,800 |
| Extraction + drying | $2,800 |
| Limited drywall cut-out | $6 / sq ft |
| Testing + clearance | $750 |
Area presets: closet 40 · bath/laundry 120 · room 250 · multi 500 sq ft.
How the estimate is built
Affected sq ft × severity rate, plus flat containment/drying/testing packages and per-square-foot demo, then state scaling. The band is wide because hidden moisture varies.
Example scenario
A single-room (~250 sq ft) moderate job with local containment, limited demo, and basic testing at U.S. average pricing typically lands around the mid-to-high thousands — more with full containment or active water extraction.
FAQ
Is rebuild included?
No. Putting drywall and finishes back is usually a separate contractor phase.
Do I always need testing?
Not always. Some jobs use moisture mapping and visual assessment; use the testing dropdown to model either path.
Is “black mold” priced differently?
Color is not a reliable price driver — extent, location, and moisture source matter more.