In Upton’s experience, it’s generally easier to go from a light color to dark color. “If you have white subway tile, it’s easier to paint your white grout joints charcoal gray than it is ...

In most cases, a bold contrast between your grout and tile colors will result in a striking, graphic appearance. For instance ...

Some products claim to be grout stains but are really just paint. Avoid them. Do not paint your grout. Keep in mind that you can really only go from light to dark when changing color.

If grout work is something you'd rather pay someone to do, consider hiring a handyman service or an experienced tile installer. Top-rated grout companies say the cost to restain grout in a 6-by-10 ...