Average Cost to install blown-in attic insulation in the US
Updated 2025
Estimate Breakdown
Add all required items to calculate the estimated cost for the completed work.
material
Blown-In Insulation (material)
$30.00
×
1
SF
$
×
1
SF
$0.00
Insulation Installation Supplies
$30.00
×
1
SF
$
×
1
SF
$0.00
labor
Labor to Install Blown-In Insulation
$30.00
×
1
HRS
$
×
1
HRS
$0.00
Demolish Existing Insulation
$30.00
×
1
HRS
$
×
1
HRS
$0.00
$0
$0
Finish Level
Project Size
SF
Contractor Markup:
%
Avg. cost in United States
$ 2,700.00
Avg. cost per SF:
$225.05
Contractor Markup:
$450.00
The cost of installing blown-in attic insulation in United States, including materials and labor, ranges between $1.03/SF and $2.10/SF. The price depends on the type of insulation material (fiberglass, cellulose, or mineral wool), the level of finish, the existing condition of the attic, and any necessary preparatory work. The complexity of the attic layout and accessibility can also impact labor costs.
Estimate Assumptions
The costs associated with installing blown-in attic insulation are influenced by various factors, including the type of insulation material selected, the level of finish desired, and the existing condition of the attic. Additionally, any necessary preparatory work and the complexity of the attic layout can significantly impact both material and labor costs.
Project Timeline
The timeline for installing blown-in attic insulation generally involves several key phases. Initially, preparation of the attic space is essential, which may include clearing out existing insulation and ensuring the area is accessible. Following preparation, the installation phase involves setting up the blowing equipment and distributing the insulation material evenly. Finally, cleanup is necessary to remove any debris and ensure the attic is left in a tidy condition.
Blown-In Attic Insulation: Comprehensive Guide for Residential Contractors
Installing blown-in attic insulation is a crucial project for enhancing energy efficiency in residential properties. This type of insulation, which can be made from materials such as fiberglass, cellulose, or mineral wool, provides excellent thermal performance. The labor involved includes not only the installation of the insulation but also the necessary preparatory work to ensure optimal coverage and effectiveness.
Best Practices
To ensure a successful installation of blown-in attic insulation, it is recommended to follow several best practices. First, always assess the attic's condition and clear out any existing insulation before beginning the installation. Use high-quality materials for baffles and vapor barriers to enhance the insulation's effectiveness. Additionally, ensure that the blowing machine is set up correctly and that the insulation is evenly distributed to avoid gaps that could compromise energy efficiency.
Conclusion
The installation of blown-in attic insulation is a valuable investment for improving a home's energy efficiency and comfort. By understanding the materials and labor involved, as well as adhering to best practices, contractors can deliver high-quality results that benefit homeowners in the long run.
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