Prepare the shower area and remove old tile, fixtures, and debris
Inspect framing, plumbing, and subfloor for damage and repair as needed
Install or confirm proper shower pan, waterproofing membrane, and backer board
Tape and thinset all backer board seams if required by the system
Plan the tile layout and mark level reference lines
Dry-fit tiles to avoid small slivers at edges and corners
Mix thinset mortar according to the manufacturer’s instructions
Apply thinset with the correct notched trowel
Set wall tiles starting from the reference line and work upward
Use tile spacers to maintain even grout joints
Cut tiles as needed for corners, edges, niches, and fixtures
Check tiles frequently for level, plumb, and alignment
Let the tile set fully before grouting
Remove spacers and clean excess thinset from joints
Apply grout with a grout float and pack joints fully
Wipe off grout haze with a damp sponge
Allow grout to cure according to the manufacturer’s instructions
Seal grout if required
Caulk all change-of-plane joints and corners with 100% silicone
Reinstall fixtures and clean the tiled shower area