How Much Does Mold Remediation Cost in San Antonio?
SA's humidity and slab-on-grade construction mean mold usually follows a moisture event: a slow leak, a flooded slab, or a sweating AC duct. Texas requires licensed mold contractors for jobs over 25 contiguous sq ft — that threshold matters. Small spots are a cleaning job; real remediation is containment, removal, and verification.
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Typical San Antonio price ranges
| Job | Typical SA range |
|---|---|
| Mold inspection + testing | $300 – $600 |
| Small remediation (<25 sq ft, single area) | $500 – $1,500 |
| Medium job (bathroom/wall cavity) | $1,500 – $4,000 |
| Large job (multiple rooms, HVAC involved) | $4,000 – $10,000+ |
| Post-remediation clearance testing | $200 – $400 |
| Water extraction / dry-out (emergency) | $1,000 – $4,000 |
What moves the number
Square footage is only part of it — access (wall cavities, attic, crawl), material porosity, and HVAC involvement drive cost. Texas licensing (TDLR) applies over 25 sq ft: the licensed contractor writes a protocol and an independent assessor clears it. In SA, post-storm jobs and AC-condensate leaks are the most common causes.
How to get an honest quote
Fix the moisture source first or remediation is wasted money — any quote that doesn't address the leak is incomplete. For jobs over the 25 sq ft threshold, verify the TDLR license. Keep the clearance test independent from the remediation contractor. Insurance often covers mold from a sudden covered water event — document everything before demolition.
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