Spray foam insulation costs an average of $1,041 as of 2015. The cost can range between $700 to over $1,500, depending on the size of the home and cost of professional installation. Spray foam insulation is priced per board foot.
Spray foam insulation is used in different parts of the home. It is an alternative to fiberglass insulation. The foam is beneficial as the entire drywall does not need to be removed to provide better insulation. Holes are cut out to insert the foam.
There are open-cell spray foam and closed-cell spray foam available. Spray foam insulation is often used in the attic, garage, walls, ceilings, crawl spaces, basement, plumbing and HVAC systems.