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The marble has probably been scratched by the underside of the door. First, trim the door bottom so that it does not scrape on the marble. Then have the dull spot refinished and polished. You will probably need to start with a course abrasive(60#).... Read More

Settling cracks are common in newly constructed homes. These cracks may continue to develop for over a year. I would suggest replacing the tiles after approximately one year, or until the settling subsides. Be sure to purchase extra tiles—and... Read More

The green growth you see is probably algae. Algae usually grows were there is abundant moisture. My guess would be that the tile stays wet after a rainstorm, allowing the algae to grow. To clean it, prepare a solution of bleach and water; about one... Read More

This white cast is very common with Mexican tile. Hard water and chlorine from your swimming pool are depositing a white salt on the surface. To remove this white haze, a mild acid washing is necessary. Use a mild acid such as sulfamic acid ... Read More

This cloudy-white condition is common on tiles that have been coated with an acrylic wax. Consider having the floor stripped and re-coated with a good-quality Mexican tile sealer. TIP Mexican tile is a clay product and is extremely soft and very... Read More

Pickled Mexican clay tiles are pickled at the factory. It is difficult to re-pickle the tile after it has been installed. This is a job for a professional, and it will be very expensive, since all the grout will have to masked to keep the pickling... Read More

Let your customer know that urine contains acid which will etch the marble surface. As for the odor, pet shops and supermarkets carry several products which use enzymes to destroy the odor of urine. Follow the manufacturer’s directions... Read More

The hard white deposit is a build-up of salts. These salts—known in the tile industry as “lime putty”—are coming up from the setting bed, and can be very difficult to remove. To remove lime putty, scrape away as much of it as possible... Read More

Most of the marble and stone polishes on the market contain the same type of wax found in everyday car wax. However, I would be cautious about applying car wax to a stone counter top; the newer car waxes contain colorants which could stain the stone.... Read More

Old marble sculptures can be made out of marbles that contain iron. Over time, the iron becomes oxidized and turns yellow. If the yellowing you are observing is the result of iron staining, it cannot be removed. If the yellow is only surface dirt,... Read More