Petersen’s uses the top Organic Compounds in the nation for all of our services, including Tile and Grout. Organic enzymes breakdown dirt and grease, as opposed to most household cleaners that fail and leave behind toxic residues. Any mop or sponge is no match for Petersen’s RotoSteam Tile and Grout cleaning system that sprays 220 degree sanitary steam, scrubs tile floor surfaces with rotary power, applies bristle head scrubbing to grout lines, and extracts moisture with 50 horsepower vacuum.