It typically costs between $0.50 and $1.00 per square foot to have blown-in insulation installed, depending on the type of insulation, the size of the building, and the location.

It typically costs between $0.50 and $1.50 per square foot to have blown-in insulation installed, depending on the type of insulation, the region of the country, and the contractor. Insulation is measured in terms of its R-value, which is a measure of how well it resists heat flow. The higher the R-value, the better the insulation. Most blown-in insulations have an R-value of 3.6 to 4 per inch, which means that for a given thickness, blown-in insulation will provide about 36 to 40 times more resistance to heat flow than standard fiberglass insulation.