Assessment and Preparation:

• Inspect the existing tiles and substrate.
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• Protect surrounding areas. 

Tile Removal:

• Pry up old tiles with tooling 
• Remove adhesive residue from the substrate.

Substrate Preparation:

• Repair or replace damaged substrate.
• Clean the surface thoroughly.

Waterproofing (if required):

• Apply a waterproofing membrane to the substrate.
• Seal edges and corners.

Tile Installation:

• Plan tile layout and mark reference lines.
• Apply thin-set mortar to the substrate.
• Lay tiles with spacers, adjust for alignment, and cut as needed.

Grouting:

• Allow mortar to set (usually 24 hours).
• Apply grout, press into joints, and wipe off excess.
• Allow grout to cure.

Final Touches:

• Optionally seal grout.
• Clean the tile surface.