"Black mold" is a catch-all term most homeowners use for any dark-colored mold, but it's most often associated specifically with Stachybotrys chartarum — a greenish-black, slow-growing mold that favors chronically wet, cellulose-rich materials like water-damaged drywall paper, ceiling tiles, and wood. Raleigh's humid summers and older housing stock with original crawl spaces make it a recurring call for us, especially following an unresolved leak.
Not every dark mold is Stachybotrys — several harmless cosmetic molds are dark-colored too, which is exactly why species identification through lab testing matters before you assume the worst (or before you assume it's nothing).
We lab-test to confirm species before quoting — this determines the containment level and PPE required, and confirms whether it's actually Stachybotrys or a look-alike.
Poly sheeting, negative air machines, and decontamination chamber for technicians entering and exiting the work area — a higher containment standard than routine mold jobs.
Contaminated porous materials are removed, double-bagged, and disposed of per EPA guidance; technicians work in full PPE including respirators.
The entire containment area is HEPA-vacuumed and wiped down, then independently air-tested to confirm spore counts have returned to normal before containment comes down.
Every job is different, but here's what Raleigh-area homeowners typically pay. For a full cost breakdown across every service and an interactive calculator, see our complete mold remediation cost guide.
| Scenario | Typical Range | Notes |
|---|---|---|
| Small area (<10 sq ft), contained | $800 – $1,800 | Includes species testing and clearance testing. |
| Moderate area (10–50 sq ft) | $1,800 – $4,000 | Single room or crawl space section. |
| Extensive (50+ sq ft or multiple rooms) | $4,000 – $10,000+ | May include structural material replacement. |
| Clearance/post-remediation air test | $250 – $450 | Confirms the area is safe before we close out the job — always recommended for black mold. |
Start with a professional inspection. We'll tell you exactly what's going on — no pressure, no upsell.
