The primary duties begin with surface preparation. This involves thoroughly cleaning, leveling, and smoothing the area—whether it is a floor, wall, or countertop—and applying necessary materials like waterproofing membranes (especially in wet areas like bathrooms) or cement backer board to ensure optimal adhesion.

Following preparation, the worker must interpret technical drawings and blueprints to accurately plan the tile layout and pattern. Using advanced mathematical skills, they determine the exact placement, calculate material needs, and mark guidelines to achieve a perfect alignment with minimal waste.

The core responsibility is tile installation. This includes precisely mixing and applying adhesive or mortar, using trowels to achieve the correct depth and consistency, and setting ceramic, porcelain, natural stone (like marble or granite), or glass tiles into place. A skilled tiler must expertly cut and shape tiles using various hand and power tools—including wet saws and nippers—to fit around obstacles, corners, and fixtures without chipping or damage. They must use levels, squares, and straightedges to ensure every tile is perfectly flat and aligned.

The process concludes with grouting and finishing. This involves applying grout evenly into the joints, cleaning off excess material, and polishing the tiled surface. They may also be required to apply sealants or protective coatings to enhance durability and prevent staining. Throughout all these tasks, the worker must strictly adhere to international construction and safety standards and maintain excellent communication with project managers and clients regarding design specifications and timelines.