Average Cost to install wall insulation in the US

Updated 2025

Estimate Breakdown

Alert Add all required items to calculate the estimated cost for the completed work.
material
$0.00
Wall Insulation (material) Info
$30.00 × 1 SF
$ × 1 SF
$0.00
Insulation Installation Supplies Info
$30.00 × 1 SF
$ × 1 SF
$0.00
labor
$0.00
Labor to Install Wall Insulation Info
$30.00 × 1 HRS
$ × 1 HRS
$0.00
Demolition of Existing Wall Insulation Info
$30.00 × 1 HRS
$ × 1 HRS
$0.00
$0
$0
Finish Level Info
Project Size Info
SF
Contractor Markup: Info
%
Avg. cost in United States $ 2,700.00
Avg. cost per SF: $225.05
Contractor Markup: $450.00
Alert The cost of installing wall insulation in United States, including materials and labor, ranges between $1.78/SF and $4.26/SF. The price depends on the type of insulation (fiberglass, spray foam, cellulose), the level of finish, the condition of the walls, and any additional requirements such as vapor barriers or fire-resistant materials. The complexity of the wall structure and accessibility can also impact labor.
Estimate Assumptions The costs associated with installing wall insulation are influenced by various factors, including the type of insulation material selected, the level of finish desired, and the condition of the existing walls. Additional requirements, such as the need for vapor barriers or fire-resistant materials, can also affect overall pricing. Furthermore, the complexity of the wall structure and its accessibility play a significant role in determining labor costs.
Project Timeline The timeline for installing wall insulation generally involves several key phases: preparation, installation, and cleanup. Preparation may include assessing the existing wall conditions and gathering necessary materials. The installation phase encompasses the actual fitting of insulation materials, which requires careful attention to detail to ensure optimal thermal efficiency. Finally, cleanup involves removing any debris and ensuring the work area is left tidy.
Wall Insulation: Comprehensive Guide for Residential Contractors Installing wall insulation is a critical project for enhancing a home's energy efficiency and comfort. The choice of insulation material—whether fiberglass, spray foam, or cellulose—directly impacts the performance of the insulation and the overall effectiveness of the installation. Proper labor is essential to ensure that the insulation is installed correctly, maximizing its benefits in terms of thermal regulation and soundproofing.
Best Practices To ensure a successful wall insulation installation, it is recommended to follow best practices such as conducting a thorough assessment of the wall conditions before beginning work. Safety measures should be prioritized, including the use of appropriate personal protective equipment. Quality checks during installation, such as verifying the fit of insulation around obstacles and sealing gaps, are crucial for achieving the desired performance outcomes.
Conclusion In summary, the installation of wall insulation is a valuable investment for improving a home's energy efficiency and comfort. By carefully selecting materials and following best practices during installation, contractors can deliver high-quality results that enhance the living environment while also potentially reducing energy costs in the long run.
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