chippyo
insulate crawlspace walls with fiberglass batts and 1-inch spray foam air seal

Is $5,900 to insulate crawlspace walls with fiberglass batts and 1-inch spray foam air seal a fair price?

Project Details

I am not ready to pay for the whole thing to be spray foamed. I want the space to be air sealed well, but I feel like my rim joists hang differently than what I have seen and possibly will leak less air. This is for a conditioned crawlspace in Zone 5B.

Quote Details

Insulation of a 3,500 sqft conditioned crawlspace with heights between 4ft and 6ft. - Install 1 inch of spray foam around the rim joist and sill plate areas for air sealing - Pin fiberglass batts to the crawlspace walls - Vapor barrier already installed by homeowner

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More Details

Category

Insulation

Price

$5,900

Quote Date

May 14, 2026

Home Size

3,500 sq ft

Insulation Type

Batt

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