In many cases, you can install vinyl floor tiles on top of your present floor, but it depends on what type of floor you already have and what shape it is in. If the present floor is something like sheet vinyl, I recommend that you take a deep breath and just remove it.
Install vinyl plank flooring over concrete, wood or existing vinyl flooring for a durable floor that stands up to moisture. At least 48 hours prior to installation, place the new vinyl plank flooring in the room for acclimation. During installation, mix planks from different boxes to blend the dye
Using a straightedge and a protective piece of scrap wood to lie underneath the vinyl, and carefully cut the vinyl along the template edge. Repeat steps 6 through 8 along each wall in the room. The vinyl should be in its final position and trimmed exactly to each wall.
One of the least expensive ways to give your floor a facelift is to lay down self adhesive vinyl tiles. You can apply peel and stick vinyl tiles to an existing floor without first putting down an underlayment if your current floor is in good condition. You won’t need grout if