Is $3,500 to add additional blown-in fiberglass insulation to the attic a fair price?
Project Details
My home, built in 1975, has existing blown-in insulation in the attic that has settled. I'm looking to improve comfort and sound control, especially during summers where temperatures routinely exceed 105°F. My attic is well-vented. I'm debating between just adding more insulation or doing a full air seal and re-insulation, as I've read that air sealing might be more beneficial. I'm leaning towards the cheaper option for now.
Quote Details
This option involves adding additional blown-in fiberglass insulation on top of the existing settled insulation in the attic floor to increase the R-value.
You say...
Vote Distribution
These ratings are not endorsed by Quote Critic. They are submitted by other Quote Critic users like you.
More Details
Category
Insulation
Price
$3,500
Quote Date
June 11, 2025
Location
California
Home Size
3,000 sq ft
Year Built
1975
Insulation Type
Blown In
Comments
No comments yet
Sign in to share your thoughts and ask questions.
Similar Quotes
Add blown-in attic insulation
This option involves adding a significant amount of blown insulation to the attic. It includes cleaning up the existing insulation and creating a thermal barrier around the pulldown door/stairs for attic access. The plan is to keep all soffits open for ventilation. - Add significant amount of blown insulation - Clean up existing attic insulation - Create thermal barrier around pulldown door/stairs for attic access - Keep all soffits open for ventilation
Add blown in fiberglass insulation to achieve an R-49 value
This option includes adding blown-in fiberglass insulation to the attic. - Insulation Type: Blown In Fiberglass - Work Scope: Replace faced batt insulation around baffle areas with unfaced batt to prevent moisture issues. - Goal: Add to existing insulation to achieve an R-49 value. - Specific Focus: Address the area above the entry doorway that is missing insulation.
Remove old insulation, air seal, and blow in new cellulose insulation in attic
This option involves a complete attic reinsulation. - Remove existing fiberglass insulation (currently R43, compacted from 30 years). - Perform air sealing in the attic. - Blow in new cellulose insulation to achieve R50, meeting current code.