Providing eastern and central Idaho with superior insulation installation and removal services. Contact Us Why Thermashield? Thermashield Insulation is devoted to providing high-quality, reliable, and efficient service to both residential and commercial customers. Learn More What We Offer Thermashield Insulation offers a wide variety of insulation from Johns Manville, a world leader in building materials. We specialize in spray foam, fiberglass, mineral wool, and foam board insulation. Learn More