You have been trying to clean your tile and grout but the grout lines just keeps getting darker becoming a eye soar you can’t live with anymore.Time to call in a professional. One of the main reasons it has reached this point is improper cleaning. You may be mopping the floor but you are actually moving the dirt around by not changing your cleaning water as it becomes soiled the water evaporates but the dirt is left behind slowly building up. What you should be doing is cleaning with a neutral floor cleaner changing out the water as it becomes soiled then rinsing the floor with clean water finally drying the floor with a towel to remove any remaining water and soil. Also stay away from using floor finish or mop and glow type products on your tile floors. Once you have the floors professionally cleaned make sure that the grout lines are sealed to help make clean up easier. At Pilgards Quality cleaning we also offer a color sealant that makes cleanup a breeze as it leaves a protective coating on top of the grout lines.and you may also change the grouts color giving your floors a new look at a affordable cost.