Stop breathing toxic crawlspace air and risking structural floor rot. Calculate instant DIY material takeoffs and turnkey professional encapsulation estimates tailored specifically to your home.
Adjust your foundation measurements to generate live material quantities and turnkey contractor pricing.
Includes 20-mil sealed system, wrapped piers, joist sanitization, vent sealing & commercial dehumidification.
Heavy 20-mil poly, seam tape, butyl tape, wall anchors & optional dehumidifier unit.
Unsealed crawlspaces are silent profit-killers and health risks. Understanding the physics of your home is the first step toward lasting structural protection.
Your home behaves like a natural chimney. As warm air rises and escapes through attic vents, it creates negative pressure at the ground level.
Raw dirt constantly off-gasses thousands of gallons of water vapor. When wood moisture content exceeds 20%, wood-rot fungi ignite—rotting main floor joists, causing floors to sag, and feeding dust mite swarms.
Full encapsulation completely isolates your home from ground moisture. By sealing foundation walls, wrapping support piers, and running commercial dehumidification, you eliminate mold growth permanently.
Don't fall for cheap contractor shortcuts that trap moisture against your floor joists.
Temporary plastic spread loosely on soil without wall or seam sealing.
Complete building-science engineered cleanroom environment under your home.
Many general handymen advertise cheap encapsulation but skip vital steps that end up trapping moisture inside your floor framing:
Get an exact, line-item quote from owner-operator Joseph Yerdon.
Complete the estimate form below or contact owner Joseph Yerdon directly.
Due to natural thermal buoyancy known as the Stack Effect, warm air in your living space continuously rises and vents through the attic. This creates a vacuum (negative pressure) that draws damp ground air, mold spores, soil gases, and allergens up through floorboard gaps and HVAC return vents.
When installed with high-tensile reinforced woven poly, heavy butyl wall tape, and masonry anchors, a 20-mil encapsulation liner is virtually permanent and engineered to withstand decades of crawlspace maintenance and foot traffic.
Yes. While the plastic liner eliminates ground vapor, a commercial self-draining dehumidifier maintains relative humidity below 55% during hot, humid summer months, preventing any wood moisture accumulation or condensation on cold water lines.
Encapsulation stops active wood rot from progressing. If floor joists are already structurally damaged or sagging, supplemental jack posts and sistered joists should be installed alongside encapsulation.