Key Takeaways Crawl space encapsulation protects a home’s crawl space from water and other damage by sealing and insulating it. The cost of crawl space encapsulation varies depending on factors ...

This process costs between $450 to $2,000, on average. Insulation installation or replacement can help to control the temperature and humidity in the crawl space.

Crawl space encapsulation is the process of sealing your crawl space from outside air and moisture. This typically means adding a high-quality vapor barrier, wall insulation, and a drainage system.