This project was a rather large one that involved a lot of Limestone Cleaning. Luckily there were no topical sealers applied previously, this allowed us to just de-grease and steam clean the Limestone. Periodically we would remove small blemishes or damage and match the factory sheen. We then dry the limestone and seal with an impregnating sealer for stain prevention. Limestone typically is a very porous and rough textured stone. That texture makes routine cleaning necessary to keep the floor looking great. Here is a quick picture of limestone cleaning in Sandy Springs, GA.