Grout Works was developed to provide the solution for the problem of dirty, discolored tile grout. Grout Works uses the first permanent colored grout sealer on the market only provided to licensed division owners nationwide. Grout Works has simplified the process and perfected the art of grout restoration. If you are tired of dirty, discolored grout lines, call me ASAP! Products Guaranteed against cracking, chipping, peeling, and stains. Finally grout lines that stay clean!