Can you install vinyl plank over existing tile?

The answer is usually yes, and it saves more money than any other decision in the project.

Ripping out tile in a slab home runs $2 to $4 a square foot, takes days, fills the house with silica dust, and frequently leaves you with a damaged slab that then needs leveling. On 1,500 square feet that is three to six thousand dollars and a week of chaos. If you can float over the tile instead, you skip all of it.

The four things to check

Floating waterproof LVP does not bond to the subfloor. It clicks to itself and rests on top. That means it does not care what is underneath, as long as what is underneath is solid, flat, dry and not too textured.

1. Is the tile solidly bonded?

Walk the whole floor and listen. Tap suspect tiles with a screwdriver handle. A hollow, drummy sound means the tile has lost its bond to the slab. One or two loose tiles can be removed and the void filled with patching compound. If a large area is drummy, the tile is failing and it needs to come out, a floating floor over shifting tile will click, gap and eventually break at the joints.

2. Is the floor flat?

The standard is 3/16 inch over 10 feet. Lay a 6-foot or 8-foot straightedge, a level, a clean piece of aluminum angle, anything genuinely straight, on the floor in several directions and look for light underneath. Florida slabs are often surprisingly good here and occasionally terrible, particularly where an addition meets the original house.

Where the floor dips, fill with a cementitious patch or self-leveler. Where it humps, that is harder, and it usually means grinding. Flatness is not cosmetic: a floating floor bridging a dip will flex at that point every time someone walks on it, and the locking joint is what eventually fails.

3. How wide and deep are the grout lines?

Narrow modern grout lines, 1/8 inch, shallow, need nothing. Wide or deep grout lines, and particularly the deep-set lines around older 12-inch tile or any kind of saltillo or slate, should be filled flush with a skim coat of patching compound. Otherwise the plank spans an unsupported gap, and over time you can feel it and sometimes see it telegraph through.

The rough rule is that if you can catch a fingernail meaningfully in the grout line, skim it.

4. Is the slab dry?

Florida slabs move moisture. The plank itself is waterproof, but trapped moisture under a floating floor can cause mold in whatever is between. Tape a 2-foot square of plastic sheeting tightly to the tile overnight. If there is condensation under it in the morning, you have a moisture issue to solve before you cover the floor.

Height: the thing people forget

A 5 mm plank with an attached 1 mm pad adds about a quarter of an inch on top of the tile. Before you start, check:

• Interior doors. A quarter inch is often fine and sometimes not, and doors can be trimmed.
• The dishwasher. This is the classic Florida mistake. If the dishwasher sits under a countertop with limited clearance and you raise the floor in front of it, it may not come out for service without damage. Check the gap first.
• Exterior thresholds and sliders. You cannot trim those.
• Transitions to rooms you are not doing. A quarter-inch lip needs a transition strip.

When you should not do it

Take the tile out if: a large area is drummy or cracked; the floor is well outside the flatness tolerance and leveling the whole house would cost more than demolition; the tile has a heavy texture or a strong profile that cannot be skimmed; or you have a genuine moisture problem in the slab.

Florida specifics

Most Tampa Bay and Central Florida housing built between 1970 and 2005 is slab-on-grade with ceramic tile in the wet areas and often through the whole living space. That construction is close to ideal for this approach, because the slab is flat, the tile is well bonded, and the grout lines are modern and narrow. It is why floating LVP over tile has become the default renovation here.

Older housing, pre-1960 frame homes in Seminole Heights, St. Pete, Bartow or downtown Sanford, is a different conversation. Those floors have moved for decades and often need real preparation first.

Bring photos to the counter, or text them to us. We would rather tell you the job needs prep than sell you flooring that fails in a year.