Thermoseal USA spray foam insulation has been in the business for over 20 years. It is the most trusted brand of spray foam insulation for contractors and homeowners across the country. With continuous research and development we continue to lead the spray foam insulation industry in both quality and diversity of spray foam products. Our product's insulation performance is the clear winner in energy savings, sound control, lifespan, cellular structure, reducing waste and cost at the same time.