For over thirty years, Nassa Flooring has specialized in the removal, replacement, and patching of gypsum-based flooring products. We use a latex-modified concrete for the new underlayment, which can be used to meet all existing grades or to level the floor. This product offers strength up to 4500 PSI and the same fire rating as concrete. After this new underlayment is hand-troweled to a smooth finish, any type of overlay flooring may be installed - vinyl composition, tile, carpet, ceramic tile, or linoleum.