Tile shouldn’t be set tight against the tub. Bathtubs can expand when filled, and they can shift slightly with the weight of occupants. For this reason, it’s important to leave a slight gap between the bathtub and the first row of tile. Aim for a narrow gap of approximately 1/16 of an inch, filled with caulk, to allow for this expansion and movement while still allowing for tile shower waterproofing.

When cleaning porcelain tiles, avoid products that contain ammonia, bleach, and other harsh chemicals. Acid-based cleansers can damage the tile, though you can clean them with a diluted mixture of one-quarter cup white vinegar mixed with one gallon of hot water. It is important always to use a soft-bristled brush or sponge, since hard bristles and steel wool can scratch the tile.

The average cost for tile installation is about $2,000, with a typical price range between $500 and $6,500. On a per-square-foot basis, you can expect to pay between $5 and $45 for installation.

Several factors influence the total cost, including:

• Installation Site: Costs vary for different areas. Common project costs are: kitchen floor ($870–$6,100), countertop or backsplash ($500–$3,000), bathroom floor ($300–$2,400), or shower wall ($225–$2,000).

• Tile Type and Quality: The material significantly impacts price. For example, standard ceramic or travertine tile can cost about $1 per square foot, while luxury options like marble can be as much as $350 per square foot for the material alone.

• Project Size and Complexity: The total square footage, the complexity of the pattern, and the shape of the tile (e.g., square, rectangle, hexagon, mosaic) will affect labor and material costs.

• Site Preparation: The amount of prep work needed, such as removing old tile or installing a new subfloor or backer board, can add to the final price.

• Tile Characteristics: The tile's durability rating and porosity can also influence the price.

• Location: Labor rates vary by geographic location.

A quality shower tiling project is a bathroom upgrade that can increase resale value. Bathroom remodels have the highest return on investments for any home update. Tiling a shower won’t offer the potential 70% ROI that a full bathroom remodel involving upgrading fixtures, installing storage, and a complete room retile will. However, you can expect an average return of 55% to 60% for this refresh.