[tiredof grout]

Move in to a house that the tile in the kitchen , bathroom and entry way have been mopped but grout never cleaned. The original color of grout is a light beige and it is now a dark brown to black

[smearcase]

You can try some grout cleaners but results may not be acceptable. Replacing the grout (with the correct tools and care, not as difficult as it sounds) may be a better option.

[JazMan]

I wouldn't replace the grout unless it was too low or had some other defect. First try cleaning with a heavy duty acidic tile and grout cleaner, there are many. If that looks good to you, apply a few coats of grout sealer and that should be it for several years.

If not, get some grout colorant and apply per directions. Aqua-Mix is a brand that I've used and vouch for. Grout stains/colororants can take a long time to apply, but much less work than replacing. It's a water base epoxy, so you shouldn't have to seal again.

https://www.groutcolorants.com/?lead...FWJp7AodjnQArQ

Jaz