New Grout Discoloration
That is not necessarily true. The problem could be caused by several reason. We would need a lot more details. it is possible that over washing an area can make it lighter, but it's a small area and if done at one time there may be other factors. Too many to list without more info.
Tell us more. Start with the subfloor type and what was there before, how the new tiles were installed, using what specific materials and conditions including the weather. Also let us know if there's heat ducts under the floor and anything else you can think of. When the job was started and finished, etc.
Tile 4 You LLC Troy, MI
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