Attic Mold Removal Cost
Gus Koedding • May 19, 2025
Mold remediation isn't just spraying bleach and walking away. It's a multi-step process that requires proper containment, safety, treatment, and restoration. Here's a deep dive into the phases of mold remediation.
🧰 1. Inspection & Moisture Source Identification
What’s involved:
- Visual attic inspection
- Moisture readings (IR cameras or moisture meters)
- Identifying leak sources, venting issues, insulation saturation
🔒 2. Containment & Setup
What’s involved:
- Sealing off the work area with plastic sheeting
- Creating negative air pressure (HEPA fan)
- Floor protection and access control
🧼 3. Insulation Removal (if contaminated)
What’s involved:
- Attic vacuum system for blown-in or batt insulation
- Bagging and disposal of contaminated material
🧪 4. Mold Cleaning & Disinfection
What’s involved:
- Applying EPA-registered products (e.g., Vital Oxide, Benefect, Concrobium)
- Brushing/scrubbing visible mold
- HEPA vacuuming all surfaces
🎨 5. Encapsulation
What’s involved:
- Spraying mold-resistant primer/sealant (e.g., Zinsser Perma-White, Fiberlock Aftershock)
- Covering all exposed wood (rafters, decking, joists)
🌬️ 6. Ventilation Correction & Air Sealing
What’s involved:
- Bathroom fan rerouting to exterior
- Unclogging soffits
- Installing baffles
- Sealing light can penetrations, top plates, pipes
🧱 7. Insulation Reinstallation
What’s involved:
- Installing new blown-in cellulose (often R-49 or greater)
- Final prep, air sealing touch-ups
⚠️ Notes on Pricing:
- Emergency jobs (flood/mold after storms) = higher labor rate
- Crawlspaces or tight attics increase time and hazard pay
- Licensed mold remediation companies often include limited warranties, which may increase overhead
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