Mold Remediation Cost Guide
Mold remediation typically costs $1,125–$3,750 nationally, averaging around $2,300–$2,400, at roughly $10–$25 per square foot of affected area. Small, contained jobs run $500–$1,500. Large jobs involving structural material or HVAC contamination can reach $10,000–$30,000.
What actually drives the price
- Square footage of the affected area — the single biggest cost driver
- Whether the mold has reached structural material (framing, subfloor) versus just a surface finish
- Whether the moisture source itself needs repair (a leak, poor grading, a failed sump pump) on top of remediation
- Accessibility — a finished basement wall behind drywall costs more to open up than an exposed crawlspace joist
- Whether HVAC ductwork is contaminated, which adds specialized cleaning
- Post-remediation clearance testing by an independent inspector, if requested (typically $300–$1,000 extra)
Typical price by job size
| Job size | Typical range | Example |
|---|---|---|
| Small, contained | $500 – $1,500 | A bathroom ceiling patch, a closet corner |
| Moderate | $1,125 – $3,750 | One basement wall, a single finished room |
| Extensive | $10,000+ | Structural framing, whole crawlspace, HVAC-wide contamination |
Why Gettysburg's housing stock matters here
A newer suburban build with a poured concrete foundation and modern vapor barriers tends to land on the lower end of these ranges when a problem does show up, because the moisture source is usually localized and easy to access. Gettysburg's older stone and brick construction, especially in the historic district and the county's farm towns, more often means a moisture problem that's had years to spread behind a finished wall before anyone notices it, which pushes a job toward the moderate-to-extensive end. See our guide on historic homes and mold for why.
Sources: Angi 2026 mold remediation cost data. Every property is different; the only way to get a real number for yours is an inspection.
Want a real number for your property?
Tell us what you're seeing and where. We'll follow up with next steps.
Request a Free Inspection