Crawl space encapsulation is the gold standard for moisture control, creating a sealed, conditioned space that protects your home from ground moisture, improves indoor air quality, and increases energy efficiency.
Traditional vented crawl spaces actually create more moisture problems than they solve—especially in North Carolina's humid climate. Modern building science shows that sealed, encapsulated crawl spaces dramatically outperform vented crawl spaces in moisture control, energy efficiency, and indoor air quality.
Our complete crawl space encapsulation systems transform your crawl space from a source of problems into a clean, dry, energy-efficient space that adds value to your home.
What is Crawl Space Encapsulation?
Crawl space encapsulation is a comprehensive system that completely seals your crawl space from ground moisture and outside air. Unlike simple vapor barriers, true encapsulation creates a conditioned space that's part of your home's thermal envelope.
Complete Encapsulation Includes:
- Heavy-duty vapor barrier sealed to foundation walls and floor
- All seams and penetrations completely sealed
- Foundation vents sealed or closed
- Optional spray foam insulation on foundation walls
- Dehumidification system (if needed)
- Drainage solutions for standing water issues
Benefits of Crawl Space Encapsulation
Eliminate Moisture Problems
Stops ground moisture from entering your home. No more dampness, mold, or mildew growing in your crawl space.
Improve Energy Efficiency
Reduce heating and cooling costs by 15-20%. Warmer floors in winter, cooler floors in summer.
Protect Structure
Prevent wood rot, floor joist damage, and foundation deterioration. Your home's structure stays dry and strong.
Better Air Quality
Stop musty odors and prevent mold spores from rising into your living space through floor gaps.
Pest Prevention
Sealed crawl spaces are far less attractive to termites, rodents, and other pests that thrive in damp environments.
Increase Home Value
A professionally encapsulated crawl space is a major selling point and can increase your home's resale value.
Our Comprehensive Encapsulation Process
Thorough Inspection & Assessment
We inspect your crawl space for moisture issues, structural damage, mold growth, standing water, and drainage problems. We'll identify the root causes and design a solution specific to your home.
Address Drainage & Water Issues
Before sealing, we fix any standing water problems with French drains, sump pumps, or grading improvements. You can't seal moisture in—you must eliminate the source first.
Clean & Prepare Crawl Space
We remove debris, old insulation (if falling or damaged), and ensure the space is clean. We treat any visible mold and repair obvious structural issues.
Install Heavy-Duty Vapor Barrier
We install commercial-grade 10-20 mil reinforced vapor barrier across the entire floor, overlapping seams by 12+ inches and taping all seams. The barrier extends 12-18 inches up foundation walls and is mechanically fastened.
Seal All Penetrations & Vents
We seal around piers, pipes, wires, and utilities. Foundation vents are closed and sealed. Every possible air and moisture entry point is addressed.
Optional: Spray Foam Insulation
For maximum energy efficiency, we can apply closed-cell spray foam to foundation walls. This creates both insulation and an air/vapor barrier in one application.
Final Inspection & Recommendations
We perform a final quality check, install dehumidification if needed, and provide maintenance recommendations to keep your crawl space dry for decades.
Encapsulation vs. Traditional Vented Crawl Space
✓ Encapsulated Crawl Space
- Completely sealed from ground moisture
- Vents closed year-round
- Dry, clean environment
- Energy efficient (15-20% savings)
- Prevents mold and mildew
- Warmer floors in winter
- No musty odors
- Less attractive to pests
✗ Traditional Vented Crawl Space
- Ground moisture rises into home
- Vents open, letting in humid air
- Damp, musty environment
- Energy inefficient (cold floors)
- Mold and mildew growth common
- Cold floors in winter
- Persistent musty smells
- Attracts termites and rodents
The Science is Clear: Modern building science research shows that vented crawl spaces in humid climates like North Carolina actually create more moisture problems. Sealed, encapsulated crawl spaces dramatically outperform traditional vented crawl spaces in every measurable way—moisture control, energy efficiency, air quality, and structural protection.
Ready to Encapsulate Your Crawl Space?
Get a free crawl space inspection and encapsulation estimate. Transform your crawl space from a problem into an asset.