chippyo

Is $8,900 to remove old insulation, air seal, rodent proof, install R-38 fiberglass batts, and add radiant barrier and attic fan a fair price?

Project Details

I appreciate this subreddit and have been searching and reading numerous posts, but I am not very knowledgeable. I've narrowed down my choices to one insulation contractor and am seeking thoughts and recommendations on the quote. I am hoping to take advantage of the Energy Efficient Home Improvement Credit, which is up to $1200 (30% of materials only). I understand that for Zone 3, R-49 is required by the 2021 IECC standard for materials placed in service in 2024 and 2025, but I'm also reading that R-38 installed continuously and extending over the wall top plate at the eaves may be accepted as equivalent to R-49. I want to ensure I'm not missing anything.

Quote Details

This quote outlines the scope of work for attic insulation, including removal of old materials, air sealing, rodent proofing, and installation of new insulation, with optional additions for a radiant barrier and an attic fan. The total cost includes all listed items, including the optional add-ons. - Insulation Removal: Removal of existing fiberglass insulation (dating from 1960-70s), haul, and disposal for 1600 sqft. - Attic Preparation: Decontamination, cleaning, air sealing, and wire mesh installation for rodent proofing for 1600 sqft. - New Insulation Installation: R-38, 24-inch width fiberglass batts installed for 1600 sqft. - Optional Radiant Barrier: Installation on rafters for 1800 sqft. - Optional Attic Fan: Installation including electrical and mounting.

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More Details

Category

Insulation

Price

$8,900

Quote Date

August 20, 2025

Location

California

Home Size

1,600 sq ft

Year Built

1960

Insulation Type

Batt

R Value

R-38

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