Mold removal cost by job
| Job | Typical cost | Time |
|---|---|---|
| Mold inspection | $300 – $800 | 2 – 4 hours |
| Air or surface mold testing | $250 – $600 plus lab fees | 1 – 2 hours + lab time |
| Small area under 10 sq ft | $500 – $1,500 | 1 day |
| Bathroom mold removal | $500 – $2,000 | 1 day |
| Basement mold removal | $1,500 – $4,000 | 2 – 4 days |
| Crawl space mold removal | $1,000 – $5,000 | 2 – 4 days |
| Attic mold removal | $1,000 – $6,000 | 1 – 2 days |
| Mold inside walls (drywall removal) | $1,000 – $8,000 | 2 – 4 days |
| Air duct mold cleaning | $600 – $2,000 | 1 day |
| HVAC system mold | $3,000 – $10,000 | 1 – 3 days |
| Whole house or severe black mold | $10,000 – $30,000+ | 1 week or more |
| Clearance (post-removal) testing | $200 – $600 | 1 – 2 hours + lab time |
Cost by size of the affected area
| Affected area | Typical cost |
|---|---|
| Under 10 sq ft | $500 – $1,500 |
| 10 – 100 sq ft | $1,500 – $5,000 |
| 100 – 300 sq ft | $2,500 – $9,000 |
| 300 – 1,000 sq ft | $6,000 – $20,000 |
Add-on and rebuild costs
| Add-on | Typical cost |
|---|---|
| Drywall replacement | $500 – $2,000 per room |
| Insulation replacement | $500 – $2,500 |
| Flooring replacement | $1,000 – $5,000 |
| Painting after drywall repair | $300 – $1,200 |
| Dehumidifier | $200 – $1,500 |
| Crawl space vapor barrier | $1,500 – $5,000 |
| Sump pump | $600 – $2,500 |
| Interior waterproofing | $3,000 – $8,000 |
Cost by removal method
| Method | Typical cost |
|---|---|
| Fogging only | $400 – $800 |
| Sanding or wire brushing | $1,000 – $3,000 |
| Dry ice blasting | $3,000 – $8,000 |
A whole-house quote under $800 usually means fogging only and no removal.
What changes the price
- Square footage and how deep mold goes into drywall, wood or insulation
- Hidden mold behind walls and in tight crawl spaces or attics
- Containment, HEPA filtration and disposal, roughly 5 to 20 percent of a quote each
- Labor, often 50 to 65 percent of the total
- Black mold, which some guides price 10 to 25 percent higher
- Region: New York and California are reported 30 to 50 percent above the national range
- State licensing and clearance testing rules
Does insurance pay?
Homeowners policies often pay when mold follows a covered event such as a burst pipe, usually up to a sub-limit of about $1,000 to $10,000. Flood insurance generally excludes mold remediation.
Ranges are compiled from published cost guides (Bob Vila citing Angi and HomeAdvisor, RestoreAdvisor, Palm BLD and others). Guides disagree, so these are estimates. Reviewed 2026-10-14.