Cost to Install Blown-In Attic Insulation

June 2024

Blow-In Attic Insulation CalculatorZip Code
Square Feet*
Item detailsQtyLow  High
Blown-In Insulation Cost 
Non-discounted retail pricing for: Fire retardant, treated cellulose. Class 1A. Loose fill. Quantity includes typical waste overage, material for repair and local delivery.
534 square feet$1,323.34$3,096.11
Blow-In Attic Insulation Labor, Basic 
Basic labor to install blown-in attic insulation with favorable site conditions. Install insulation rafter vent baffling at all soffit vent locations. Blow in and level insulation to R45 insulation level above ceiling crawl space. Includes planning, equipment and material acquisition, area preparation and protection, setup and cleanup.
534 square feet$1,323.34$3,096.11
Blow-In Attic Insulation Job Supplies 
Cost of related materials and supplies typically required to install blown-in attic insulation including: fasteners, vent flow baffles and sealing tape.
534 square feet$1,323.34$3,096.11
Blow-In Attic Insulation Equipment Allowance
Job related costs of specialty equipment used for job quality and efficiency, including: 115 V insulation blowing system, 500+ pounds of insulation/hour capacity. Daily rental.
534 square feet$1,323.34$3,096.11
Option: Remove Insulation
Remove existing loose fill insulation and prepare for off premise disposal. For up to 1 foot thick layer of fiberglass, wool and cellulose insulation only. Additional precautions, steps and costs for asbestos insulation are NOT included.
534 square feet$1,323.34$3,096.11
Blown-In Insulation Debris Disposal
Costs to load and haul away old materials, installation waste and associated debris.
534 square feet0.4961250.564375
 Unused Minimum Labor
Balance of 2 hr(s) minimum labor charge that can be applied to other tasks.
Totals - Cost To Install Blown-In Attic Insulation   
Average Cost per Square Foot  
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In June 2024 the cost to Install Blown-In Attic Insulation starts at $3.41 - $7.14 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. Set Project Zip Code Enter the Zip Code for the location where labor is hired and materials purchased.

2. Specify Project Size and Options Enter the number of "square feet" required for the project.

3. Re-calculate Click the "Update" button.

NOTE: *Input the total of the finished surface area AND the area of any openings enclosed by the finished area.

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Homewyse uses the Unit Cost Method for up-to-date example estimates and custom estimates created with Homewyse Lists. The Unit Cost Method promotes clear communication, sets realistic expectations between the customer and service professional - and results in mutual trust, fair pricing and high customer satisfaction.

Cost to Install Blown-In Attic Insulation - Notes and General Information

This example estimate is for BASIC work performed in easily serviceable conditions by qualified trade professionals, using popular, IN STOCK products, materials and supplies commonly available at home improvement retailers. Your actual costs will vary due to the unique situation, requirements and choices of your project. Work not mentioned on this page, work with schedule difficulty, and work using master craftsman, premium materials, custom built products and project supervision will result in HIGHER COSTS!

This example estimate is for educational and illustrative purposes - it is NOT a substitute for written quotes from trade professionals. Homewyse strongly recommends that you contact reputable professionals for accurate assessments of work required and costs for your project - before making any decisions or commitments.

The cost estimate includes:

  • Costs for local material / equipment delivery to and service provider transportation to and from the job site.
  • Costs to prepare the worksite for Blow-In Attic Insulation, including costs to protect existing structure(s), finishes, materials and components.
  • Labor setup time, mobilization time and minimum hourly charges that are commonly included for small Blow-In Attic Insulation jobs.

The cost estimate does NOT include:

  • Costs for removing, relocating, repairing, or modifying existing framing, surfacing (including molding), HVAC, electrical, and plumbing systems - or bringing any systems into compliance with current building codes.
  • Costs for testing and remediation of hazardous materials (asbestos, lead, etc.).
  • General contractor overhead and markup for organizing and supervising the Blow-In Attic Insulation. Add 13% to 22% to the total cost above if a general contractor will supervise this project.
  • Sales tax on materials and supplies.
  • Permit or inspection fees (or portion thereof) required by your local building department for your overall project.

References - Blow-In Attic Insulation

Blow-In Attic Insulation Budget Management

Blow-In Attic Insulation Cost Infographic - critical areas of budget risk and savings

This infographic highlights decisions and site issues that can cause large cost variances in the typical Blow-In Attic Insulation budget.

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