Blown-In Wall Insulation Cost Calculator
Estimate the cost of blown-in wall insulation based on exterior wall area, insulation type, and options like exterior drilling and air sealing packages.
Last updated: March 25, 2026
Blown-In Wall Insulation Cost Calculator
Estimate the cost of blown-in wall insulation based on exterior wall area, insulation type, and options like exterior drilling and air sealing packages.
Estimated Total
$2,300
Itemized Breakdown
This calculator provides estimates based on national averages adjusted for your region. Actual costs may vary significantly based on specific project conditions, contractor availability, material prices, and local market factors. Always get at least 3 quotes from licensed, insured contractors before starting your project.
Want the full picture?
Read our complete Wall Insulation (Blown-In) cost guide with material comparisons, contractor tips, savings strategies, and regional pricing data.
Quick Cost Reference
Cost by Tier
Blown-in cellulose, 1,000 sq ft of exterior wall, drill-and-fill method, patch holes
Dense-pack cellulose or fiberglass, 2,000 sq ft, existing home retrofit with patching
Spray foam or high-performance dense-pack, full exterior envelope, older home