Crawl space encapsulation is the process of sealing and waterproofing a crawl space. The process begins with perimeter drainage and a sump system to ensure that outside water cannot flood the crawl space. Once the drainage is installed a vapor barrier is installed and sealed to the foundation walls, columns, and then the floor. Vents in the crawl space are sealed airtight to prevent outside air from entering the crawl space. Lastly a dehumidifier is typically installed to control humidity levels and ensure a clean, healthy environment.

Costs can greatly vary based on the size, height, and accessibility of the crawl space, however typical pricing starts around $5,000 and can go up to $15,000.

A healthy home starts with a good foundation. Roughly 60% of the air you breathe in your home comes up from below, this is known as the stack effect. If your home sits on a crawl space this means air is filtering through the crawl into the home. Most homes on a crawl space have HVAC systems down below. To ensure a clean and safe home for your family you must keep the crawl space clean and dry.