The cost of crawlspace encapsulation can vary significantly based on several factors, primarily the size and condition of the crawlspace. For smaller crawlspaces, you can expect to pay between $4,000 to $8,000. Larger homes with more extensive crawlspaces may see costs upwards of $10,000 or more. Additionally, if the crawlspace is in poor condition, further remediation work may be necessary before encapsulation can begin, which can add to the overall expense.