Yes, you can install over old flooring. Flexi-Tile can be installed over virtually any existing substrate including timber, concrete, resin, quarry tiles, terrazzo and linoleum as well as damp floors, subfloors with no damp proof membrane (any moisture will evaporate up through the joints). However, carpet should be removed in advance. The subfloor should be clean, flat and firm. Flexi-Tile provides an easy, rapid solution to covering damaged and contaminated floors and is an extremely resilient, ergonomic flooring system. For more detailed information please consult our installation guide.