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The basic cost to Insulate an Attic is $3.42 - $7.04 per square foot in September 2024, but can vary significantly with site conditions and options. Use our free HOMEWYSE CALCULATOR to estimate fair costs for your SPECIFIC project.
Insulation Calculator will help you quickly estimate the cost of insulation your attic space, using either Closed or Open Cell Spray Foam, Fiberglass/Mineral Wool (Rolled or Batt), Blown-In Insulation (Fiberglass or Cellulose), based on required R-Value or Stud/Rafter size.
We’ve made it easy to estimate the amount of blown-in insulation you need with our Insulation Calculator. Measure the length and width of your room and input the R-value best for your area of the country.
Attic insulation installation ranges from $1.50 sq/ft. to $2.45 sq/ft. The average cost of attic insulation installation is $1.80 sq/ft.
Attic insulation costs $1 to $4 per square foot or $1,000 to $2,700, depending on the insulation type and attic size and condition. Attic cleaning, air sealing, and old insulation removal may increase costs. Attic insulation options include blown-in, loose-fill, batt and roll, and spray foam.
Enter the square footage of your attic space along with the cost per square foot of insulation material and labor to calculate the total cost of insulating your attic. You will get an accurate estimate in seconds, giving you a clear idea of your budget for the project.
This insulation cost calculator estimates the total cost for insulating a rectangular area including material and labor costs. Enter the width, height, and length of the area you want to insulate in feet.
Attic insulation cost. Attic insulation costs $1 to $4 per square foot installed, depending on the type, R-value, job size, and complexity. The average cost to insulate an attic is $1,000 to $2,700. Small attic insulation costs start at $500, while insulating large attics costs up to $6,000.
For a 1,500-square-foot attic, expect to spend around $1,500 to add cellulose insulation professionally. DIY fiberglass installation may cost $500–$750 in materials. Get multiple quotes when hiring an insulation company. Prices vary based on labor rates, materials, and any specials/rebates offered.
Use our Roll and Batt Insulation Calculator to estimate the amount of wall insulation, crawlspace insulation or attic insulation you need for your project.