LocalProjectBudget

Install Blown-In Insulation Cost in 2026

Most Install Blown-In Insulation projects in the United States cost between $1,200 and $5,000. The typical price is $2,400.

What drives the price

  • Batt, blown-in cellulose or closed-cell spray foam
  • Target R-value for your climate zone
  • Attic, wall or crawlspace access
  • Air sealing done alongside the insulation

Usually included

  • Insulation material to the specified R-value
  • Installation and air sealing at obvious gaps
  • Cleanup and disposal

Usually extra

  • Removing contaminated existing insulation
  • Ventilation or moisture remediation
  • Drywall work for wall injection

Unit prices in the United States

Quality tierCost per sq ft
Budget$1.02
Mid-range$2.04
High-end$4.25

Install Blown-In Insulation costs in major metros

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