A Ground Barrier Has a Specific Role
A vapor barrier primarily limits moisture moving from exposed soil into the crawlspace. Its installation details and coverage matter.
Encapsulation Can Be a Broader Scope
A more comprehensive system may include sealing, detailing around supports, humidity management, drainage, access improvements, and insulation considerations. The word encapsulation alone does not tell you which items are included.
Compare Written Proposals
Ask which moisture sources are being addressed. Check whether the proposed work deals with standing water, ground moisture, humid air, or a combination. Understand what is excluded.
The Right Choice Depends on Conditions
Not every crawlspace needs the same scope. An assessment should guide the recommendation. Ongoing maintenance and warranty terms should be discussed before you decide.