The cost to install spray foam insulation ranges from $600 to $10,000 ... like a crawl space or small attic, it can require more time, labor and special equipment to complete, which will increase ...
This type of insulation costs about $1.30 to $3.10 per board foot installed. Install closed-cell spray foam in high-moisture areas, like the attic, basement, or crawl space for the best results.