Is $4,500 to add blown-in attic insulation a fair price?
Project Details
I recently purchased this home, which is in a cold climate (New Hampshire, Zone 5/6) with significant temperature and humidity variations. The attic currently has R-19 pink fiberglass insulation, which is insufficient. The attic has great ventilation. I'm leaning towards adding blown-in insulation and keeping the soffits open. The attic is only used for minor storage, like Christmas decorations, and does not contain HVAC or other major systems, only bathroom and stove vents. I am concerned about moisture or roof issues with spray foam and whether it's worth the higher cost.
Quote Details
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
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
$4,500
Quote Date
February 22, 2026
Location
New Hampshire
Insulation Type
Blown In
Comments
No comments yet
Sign in to share your thoughts and ask questions.
Similar Quotes
Add additional blown-in fiberglass insulation to the attic
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.
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.
Add attic insulation to meet R51 standards
This option focuses on upgrading the existing attic insulation to meet current R51 standards and improving ventilation and sealing. It includes: - Addition of blown fiberglass (17 inches total) to meet current R51 standards - Installation of sealing joints for access hatches - Ensuring soffits are properly cleared - Addition of deflectors and cardboard in front of the soffits for ventilation - Decontamination of the framework with encapsulant and fungicidal product - Insulation of access hatches - Installation of leveling guides in the attic - Protection of the premises during the work - Photos taken before, during, and after the work - Provision of service truck and tools - Cleanup of premises after work