Lay the Tile. Mix thin-set mortar according to directions. Use the flat side of trowel to apply the thin-set and the comb edge of the trowel to create grooves (Image 1). This will give you a really tight connection to your slab. Set the tiles by gently sliding into place. Use spacers to achieve consistent gaps between tiles (Image 2).
The Costs. Minimum cost of bathroom wall tiling: $2.50-$3.00 per square foot. Maximum cost of bathroom wall tiling: $7.00-$8.00 per square foot. When considering a bathroom wall tiling project, homeowners are often most concerned with the costs associated with the installation.
Expect to be quoted on a per square metre rate by bathroom tilers, which could range from $35 per square metre to $120 per square metre. $60 per square metre is the average for laying bathroom tiles. The cost of the actual tiles would be on top of this, so be sure to factor this in.