Q.Four years ago I had a saltillo floor installed in my kitchen. The tiles were not presealed. The kitchen design company and I sought advice from the tile company that supplied them as to how to install and seal them. Both are highly regarded... Read More

Q: I had my ceramic tiles acid washed with a mix of 2 parts muriatic acid and 2 parts water. It cleaned up heavy  clacification but tiles remain  smokey  and cloudy. Do I have options to improve the finish other than polishing? Would a... 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. Does grout turn darker when wet and lighter when dry even with color seal? A. Unsealed grout has tiny pores that absorb moisture, which can give unsealed grout lines a darker appearance. Once the moisture evaporates (assuming the moisture is... Read More

Q. Hello. I just received a new quartzite install, and there is a crack at the sink extending to the hole for the soap dispenser. The fabricator claims it does not affect integrity of the stone, since apparently it's not a full-depth crack. The... Read More

Graffiti Removal Procedure for Stone, Masonry, and Tile Surfaces By Frederick M. Hueston, www.stoneforensics.com If your beautiful building, wall, or other surface has just become the unintended canvas for graffiti, your first reaction might be to... Read More

Q. We have a new Calcutta Matarazzo Dolomite kitchen honed bench top. Only in use since Xmas Day 2025. We are seeing shiny streaks across the surface. Do we need to request the stonemason to return and repolish the surface, or can you advise of... Read More

Q. I'm hoping for some help regarding our bathroom floor which is a dark grey very porous tile that is not glazed. There has been a ring of moisture around the base of our toilet on the tile that varies at time in size from 1/4 inch to 2 inches... Read More

Q. My countertops were just installed and the tile guy left an ink pen on the island counter. It leaked and I now have a blue stain on my Calacatta marble slab. Any advice on how to remove it. I used acetone and alcohol. It did lighten up, but I can... Read More

Q. Your video talks about a neutral cleaner. Can you expand on what this would be or recommend something? Thank you. A. Whether you need expert services from skilled PROS, or are looking for care and maintenance how-to's, or tips for making... Read More