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Q. I damaged the marble countertop at home. The cleaner I used indicated not to be used on marble. I didn't read properly. Now, I see the drops of spray of this cleaner and permanent stains on several areas. There are little round-dots sprayed... Read More

Q. I have a Pietra Cardosa countertop, and one handprint sized area has turned almost white on the black counter top because of the spilling of a descaling chemical solution that I was using to clean an appliance. If you have any suggestions for how... Read More

Q.  I just finished putting in a new black marble shower wall, literally giving it its first cleaning. I had no idea that some bathroom cleaners would immediately etch into the marble finish. Please, for the love of God, tell me there is something... Read More

Q. A Liquid Plumber bottle leaked on my beige limestone bathroom floor. It looks like a wet mark. Is there anything I can try to remove stain? It is a heated floor. A. Liquid Plumber is a very high alkaline substance, which leads our stone expert to... Read More

Q. I am purchasing natural stone countertops, and I am concerned that I might not recognize the difference between naturally-occurring imperfections and unnatural damage. Can you provide some resources to help me make a good decision on my purchase?... Read More

Q. I have a Pietra Cardosa countertop, and one handprint sized area has turned almost white on the black counter top because of the spilling of a descaling chemical solution that I was using to clean an appliance. If you have any suggestions for how... Read More

Q. The travertine in my shower was cleaned with a bleach-based cleaning product, causing a stain. Will my travertine need to be replaced? A. Bleach should not cause a stain on travertine. You are probably seeing alkaline etch damage. A stain... Read More

Q. How do I remove a water spot on my honed travertine table top? Should I use marble polish? A. Water spots are actually something else entirely -- etch damage. Because your top is honed, it would not be wise to attempt to remove the etch... Read More

Q. We have a Silestone kitchen counter which has developed some "dulling" in a couple of areas. One was due to someone rubbing to hard with a slightly abrasive cloth and the others are due to the sun shining on the counter. Is there anything/anyone... Read More

Q. A plate from the microwave was placed on a polished brownish/black marble table top and left a whitish ring, its smooth to the touch...can it be repaired to remove the ring? A. It is possible to repair, but the question is whether you can do it... Read More