Permafloors was established in 1995 and has grown to be the most reputable gypsum underlayment installer in all of Montana and its surrounding areas. We are Montana’s only USG Levelrock applicator, specializing in radiant heat systems, sound and fire mitigation, and bringing old floors back to level. As a family run business, we take pride in strong communication, jobsite efficiency, and overall customer satisfaction. Contact our office to learn more.