Remove loose tiles and leave the space open for filling with.
How to level a floor with tile.
Then vacuum the floor with a wet dry vac or sweep it with a broom.
Remove the baseboard and trim surrounding the tile floor to make space for the new surface level.
If the area is very large use a long straight 2 in 4 in 5 1 cm 10 2 cm board and set your level on top of it.
Before we get started.
Make a final check with the level to be sure all the high and low spots are gone.
If the uneven floor is due to floor joists that have warped or twisted over time or were incorrectly installed the only way to level the floor is to remove the subflooring and shim the joists.
Search the floor for any loose or damaged tiles.
Tip 2 use at least a 4ft level or straight edge to find dips and humps.
Tip 3 find out how deep the dip is.
Whether the room is 20 x 20 or 4 x 5 the methods are the same for floor leveling.
How to use a floor leveling compound over ceramic tile step 1.
Floors are rarely perfectly level.