Why Crawl Space Encapsulation Matters in North Carolina
North Carolina's humid subtropical climate creates the perfect conditions for crawl space moisture problems. With average summer humidity levels exceeding 70%, unsealed crawl spaces act like sponges — absorbing ground moisture and pulling humid outside air through open vents.
This moisture leads to wood rot, mold growth, structural damage, pest infestations, and poor indoor air quality. Studies show that up to 40% of the air you breathe on your first floor comes from your crawl space (the "stack effect"). If your crawl space is wet and moldy, so is the air in your home.
Encapsulation solves this by completely sealing the crawl space from outside moisture — creating a clean, dry, controlled environment that protects your home's structure and your family's health.
Our Encapsulation Process
Inspection & Assessment
We crawl through your entire space, document every issue, and create a custom remediation plan.
Cleanup & Prep
Remove debris, standing water, old insulation, and any existing vapor barrier material.
Repairs First
Address structural damage, mold remediation, and drainage issues before encapsulating.
Full Encapsulation
Install vapor barrier, seal vents, insulate walls, and set up dehumidification system.
What's Included in Full Encapsulation
- 20-mil Reinforced Vapor Barrier — Commercial-grade polyethylene covering the entire floor and up the walls, overlapped and sealed at every seam
- Vent Sealing — All exterior vents permanently sealed to prevent humid air infiltration
- Wall Insulation — Rigid foam board or spray foam insulation on crawl space walls for thermal protection
- Dehumidifier Installation — Commercial-grade crawl space dehumidifier sized for your space, with condensate drain line
- Sump Pump (if needed) — For crawl spaces with water intrusion or high water table issues
- Drainage Matting — Interior drainage channels to direct any water to the sump pump
- Sealed Access Door — Airtight crawl space access door to complete the encapsulation
Benefits of Crawl Space Encapsulation
- Lower Energy Bills — Homeowners typically see 15–20% reduction in heating and cooling costs
- Improved Air Quality — Eliminate musty odors and reduce allergens throughout your home
- Structural Protection — Prevent wood rot, joist damage, and foundation deterioration
- Pest Deterrent — Sealed crawl spaces are far less attractive to termites, rodents, and other pests
- Increased Home Value — A properly encapsulated crawl space is a major selling point
- Usable Storage Space — A clean, dry crawl space can actually be used for storage