Only if you KNOW they don’t contain asbestos - Carefully remove tiles from an area covered by furniture or appliances and switch with damaged ones. To do this, heat thoroughly with a blow dryer and use a putty knife to lift the tile one at a time without damaging. Make sure the subfloor is sanded smooth and is clean and dry. You can often just reheat the glue on the tile and stick it in place or apply new adhesive.
