How Much Does Blown-In Insulation Cost to Install? - BobVila.com
How Much Does Blown-In Insulation Cost to Install? Adding insulation will improve a home's comfort level. Blown-in insulation cost ranges from $930 to $2,085, with most homeowners paying a national average of $1,507. Photo: istockphoto.com Typical Range: $930 to $2,085 National Average: $1,507 Like other types of insulation, such as fiberglass batts and spray foam, blown-in insulation reduces thermal transfer from outside to inside. That means the indoor temperature remains more constant and comfortable during both hot summers and cold winters. The benefit of blown-in insulation over other types is installing it in walls without needing to remove drywall to access the stud spaces. Local building codes require specific amounts of insulation for new construction and remodeling projects based on different climate zones. Blown-in insulation cost varies from $930 to $2,085 depending on the extent of the project; whether an attic, walls, or both will ...