Q. Is it possible to remove a bleach stain from a green slate worktop? This is a Cumbrian slate from the north of England. A. Yes, it is possible to remove a discoloration on slate that was caused by bleach. To be clear, bleach doesn’t actually... Read More

Q. A water stain was caused by a plant pot overflowing, and the overflow stood for 24 hours, leaving an outline. I tried to clean the outline with steel wool and made a worse mark. What can I do? I am not sure if the table is stone or slate. A. Just... Read More

Q. Our house was built in 1967 and has black slate flooring inside and on the porch and terrace. We've had some restoration work done, but we're not happy with how it looks. Even after sealing, it doesn't have the polished or wet look... Read More

Q. How do I get rid of candle wax (black) on a stone fireplace? A. Black candle wax can be frustrating to remove, especially on a porous surface like stone. There are usually two challenges to address: the wax itself, which can seep into the stone,... Read More

Q. Water feature has chlorine residue buildup causing a white stain on natural rock waterfall. How can I remove the chlorine residue from the rock? A. What you are seeing is likely mineral deposits. Chlorinated water doesn’t cause the deposits,... Read More