The time it takes to install tile can vary greatly depending on the size of the area, the type of tile, and the complexity of the pattern. A small room might only take a day, while larger projects can take several days.

Yes, in some cases, tile can be installed over an existing floor, such as vinyl or laminate, if the surface is even and in good condition. However, installing over existing tile is generally not recommended.

Consider the area's usage, foot traffic, moisture exposure, and your decorative preferences. For wet areas, like bathrooms, non-porous and slip-resistant tiles are best. For living areas, aesthetics might be a priority.

Costs can vary widely based on the type of tile selected and the complexity of the installation. On average, you might expect to pay anywhere from $5 to $15 per square foot, including materials and labor.

Porous tiles, like natural stone, typically need to be sealed to protect against stains and moisture. Ceramic and porcelain tiles usually only require their grout lines to be sealed.

Regular sweeping or vacuuming to remove debris, coupled with damp mopping using a mild detergent, should keep your tiles looking good. Avoid abrasive cleaners which can damage the tile's surface.