Black Mold Removal Hicksville, Nassau County Mar 19
Bathroom wall cavity — visible Stachybotrys behind tile from decade-old pinhole leak. Surgical demo, negative-air containment, copper vapor barrier, clearance passed.
24/7 Emergency Response
Remediation Service
Black Mold Removal on Long Island
Stachybotrys chartarum removal — the one species that sends inexperienced contractors running. We've handled 400+ since Sandy.
NYLMB Licensed
IICRC Certified
Same-week scheduling
Free Inspection Request
Get a same-week callback.
NYLMB Licensed · MA00534 / MR00612
IICRC CMR & AMRT Certified
4.9★ · 187+ Google Reviews
EPA RRP Lead-Safe
Since 2012 · 2,800+ Homes
Overview
Black Mold Removal: what we actually do.
'Black mold' is the common name for Stachybotrys chartarum, a cellulose-loving toxigenic species that grows on chronically-wet drywall, wood, and ceiling tile. It's slower-growing than common household molds but produces mycotoxins that can cause real respiratory issues in kids, elderly, and immunocompromised occupants. The remediation protocol is stricter: full containment, N95 minimum respirator, mandatory post-remediation verification.
When to call us
- Visible dark/greenish-black mold on drywall, ceiling, or framing
- Black mold exposure symptoms: persistent cough, headaches, fatigue
- Post-flood or long-term-leak areas with visible dark colonies
- Homes with children, elderly, or immunocompromised residents
Our process
01
Emergency containment (same day)
We can mobilize full containment within 24 hours for black mold. Negative-air chamber, HEPA AFDs on 24/7 for duration, PPE upgraded to full-face respirators.
02
Air sampling for baseline
Pre-remediation air samples establish the Stachybotrys spore-count baseline. Used to verify clearance later.
03
Surgical demolition
Every contaminated material removed inside the containment. Double-bagged, HEPA-vacuumed, sealed-out.
04
Antimicrobial + encapsulation
Post-demo HEPA sand, antimicrobial treatment, encapsulation coating where framing remains.
05
Clearance testing
Third-party air samples compared to baseline and outdoor controls. Stachybotrys must be absent from interior air to release the space.
The real causes we see in Long Island homes
Sustained water events
Stachybotrys needs cellulose (drywall paper, ceiling tile) that's been wet for weeks. The #1 trigger we see is a pinhole leak behind a wall that went unnoticed for 6+ months.
Basement flood legacy
Sandy and subsequent nor'easter basement floods that were mopped but not dried out properly. Six months later: black mold behind the finished wall.
Attic with roof-leak history
A leaky ridge cap that drops water onto insulation for a season. The insulation stays wet; the sheathing above it grows Stachybotrys.
Pricing
Black mold jobs start at $1,500 for small contained areas and run $3,000–$10,000 for whole-room or whole-basement scopes. Higher than typical mold because of stricter PPE, longer dwell times, and mandatory clearance.
Every quote is fixed after inspection — no hourly billing, no change orders unless the substrate reveals hidden contamination.See full pricing guide →
Field Log
Recent Black Mold Jobs
Real jobs. Real towns. Actual scope and scale from our last 90 days of field work.
Black Mold Removal
Black Mold Removal Islip, Suffolk County Dec 20
Ceiling Stachybotrys from second-floor shower leak. Two-room containment, surgical demo, antimicrobial, new drywall install.
Black Mold Removal Commack, Suffolk County Oct 1
Laundry room behind washer — hidden wall Stachybotrys from supply hose pinhole. Demo-treat-rebuild, insurance documented.
FAQ
Questions homeowners ask about black mold
Stachybotrys produces mycotoxins that can cause real symptoms in sensitive individuals. For healthy adults, the risk is moderate and exposure-dependent. For kids, elderly, and anyone immunocompromised, prompt removal is medically important.
No — not if it's over 10 sqft, which is where NY Article 32 kicks in. For small areas (under 10 sqft) on a hard surface, you can clean with detergent and water, but anything on porous material (drywall, wood, fabric) requires professional removal.
Black mold in a home with kids or medical sensitivities is an emergency. We mobilize within 24 hours. Call the 24/7 line.
Mycotoxin off-gassing ends when the colonies are physically removed. Antimicrobial treatment alone doesn't eliminate the smell — only removal does.
More services
Related work we do.
Mold Remediation
Full IICRC S520 remediation — containment, HEPA filtration, removal, and clearance. Our core service. Long Island's housing stock — 1950s–70s construction with limited vapor barriers, poor attic ventilation, and South Shore flood exposure — creates persistent mold conditions that require professional remediation, not surface cleaning. We follow Category 3 containment protocol on every job: negative-air machines with HEPA filtration, zipper-door decontamination chambers, full PPE, and independent post-remediation verification (PRV) clearance before we close out. South Shore towns like Freeport, Merrick, and Valley Stream carry elevated mold risk from storm surge flooding. Nassau County Health Dept guidelines for mold remediation in occupied buildings require written scope, proper containment, and clearance testing on jobs over 10 sqft — we document every step for insurance and compliance purposes. Most residential remediation projects in Nassau and Suffolk run $2,000–$8,000. Post-flood jobs in South Shore towns can run $3,000–$12,000 depending on scope.
Read more →
Attic Mold Removal
The #1 mold problem in Long Island homes — sheathing mold from blocked bath fans and under-vented roofs. We treat the wood and fix the ventilation.
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Basement Mold Removal
From crawl-space dampness to finished-basement flood damage. South Shore specialty — Sandy legacy and nor'easter water events.
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Crawl Space Mold Remediation
Vapor barriers, joist treatment, dehumidification — the three-step fix for chronic crawl-space mold in older LI homes.
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Bathroom Mold Removal
Hidden behind tile, under vanities, and inside wall cavities — most bathroom mold comes from pinhole leaks that have been wet for years.
Read more →
Post-Flood Mold Remediation
Category 3 water protocol — Sandy legacy cleanup, storm floods, basement nor'easter events. Insurance-documented from day one.
Read more →
Ready to breathe easier?
Same-week scheduling. Crew on-site in days, not weeks.
Free visual inspection, same-day estimate. Licensed assessor handles the test separately from remediation — NY Article 32 compliant from the first call.
Mon–Sun 7am–8pm · 24/7 emergency line