Grouting hearth tiles is one of the most important steps. It seals the tiles so heat doesn’t transfer under the tiles so easily, which can be dangerous. For this reason, heat-resistant grout is a must. Grout also prevents dust, dirt, and any other material from gathering between your tiles. If this happens and those buildups are flammable, a fire could start between the tiles. 

The cost to install porcelain tile is about $1,930 on average. Porcelain tile prices range from $880 to $3,000 or more. The average cost tends to be higher than ceramic tile because porcelain tile is very durable. Porcelain tile rating also factors into the material cost. Tile ratings are as follows:

• Grade 0: Walls only

• Grade 1: Walls and light traffic floors

• Grade 2: Rooms with light traffic, but not kitchens or hallways

• Grade 3: Kitchens, hallways, and entryways

• Grade 4: Any area, interior or exterior

• Grade 5: Highest durability good for any area, interior or exterior

For professional labor and materials, it would cost between $6,000 and $28,000 to install 1,000 square feet of Saltillo tile flooring. If that’s out of your budget, you could consider laying the tiles yourself or choosing a less expensive type of flooring. For example, vinyl flooring costs just $2 to $7 per square foot, so for a 1,000-square-foot space, you’d pay $2,000 to $7,000.

The lifespan of bathroom tile can be 50 years or more, depending on proper installation and regular maintenance. A well-done tile job, whether it's a new installation or a retiling project, can last for many decades. To lengthen the life of your tile, it's best to have it installed by a professional and to perform regular maintenance. This includes routine cleaning, resealing, and regrouting as needed. With proper care, you can expect your tile to last 10 years or more before needing major repairs or retiling, especially in high-traffic areas where tiles can wear out more quickly.