2026 Cost to Install Insulation Per Square Foot
Our Insulation Cost Guide provides average prices for installing insulation in your home, including walls, ceilings, floors, basements, crawl spaces, and more.
The average U.S. homeowner spends about $1,852 to install insulation , with most projects ranging from $498 to $4,500. You'll pay between $0.40 and $6.75 per square foot , depending on materials and labor.
Insulation Cost Per Square Foot
Homeowners frequently pay between $1.50 and $6.50 per square foot for insulation , depending on material, insulation depth, and installation complexity. The main cost drivers are material type, R-value targets, attic or wall application, and local labor rates. This guide outlines the cost , price ranges, and practical budgeting for U.S. homes.
Insulation costs in the United States are commonly quoted in dollars per square foot , with wide variation based on material, R-value, and installation specifics. This article covers the cost and price range you can expect per square foot , plus key drivers and regional nuances. Understanding these factors helps buyers estimate a project budget more accurately. Assumptions: region, insulation ...
Home insulation cost
Home insulation cost ranges from $1.25 - $7.50 per sq. ft. installed, with a typical 1,500 sq. ft. project costing $1,875 - $11,250. Use the calculator below to estimate your price based on the insulated square footage, material type, access, removal, and local labor rates.
Updated 2025 Pricing: Open Cell averages $0.40-$0.60/bd ft, while Closed Cell runs $1.00-$1.60/bd ft. See the full cost breakdown table per square foot for walls, attics, and roofs here.
Homewyse Calculator
In May 2026 the estimated national average cost to Install Wall Insulation starts at $1.87 - $3.03 per square foot *. Use our Cost Calculator for cost estimate examples customized to the location, size and options of your project. To estimate costs for your project: 1.
Cost Overview: Professional insulation installation costs between $1,066 and $2,639, with your material choice driving the final total for the project. The location you insulate and the type of material you select determine your project complexity and overall installation costs .
Cost to Install Attic Insulation
Attic insulation costs may vary depending on your space's material cost and size. Use this guide to learn more about installation costs for your attic insulation . Schedule your FREE in-home consultation today!
New insulation can make your home more comfortable and boost energy efficiency. Use this insulation cost guide to get an accurate estimate for the installation.