How much does it cost to insulate a 2500 sq ft house?
THE OVERALL COST The average cost of insulating a 2,500 sq. ft. home is between $2,000 and $6,000.
What is the cost of insulation per square foot?
The average cost per square foot is between $0.30 to $1.50. So, for a 500-square-foot area, your estimate will vary between $150 to $700 if you do it yourself. For a professional job, add $200 to $500 for labor, and you're looking at around $350 to $1,000 for 6 hours of work.