No matter how stained your grout is, we will make it look new again with a 5 year labor warranty. After we clean grout, we apply Caponi – a two part pigmented titanium resin sealer that comes in more than 40 different color options to suit your needs. It soaks deep into grout while waterproofing the surface to prevent stains and mold from taking place. Caponi cannot be damaged by harsh chemicals or scrubbing.