You should replace your grout when it starts to look dirty and discolored. Grout can also start to crumble and crack, which will allow water and dirt to seep into the cracks and cause further damage. If you notice any of these signs, it's time to replace your grout. Be sure to choose a color that will complement your tile and décor.

You should replace your grout when it starts to look dirty and discolored. Grout can also start to crumble and crack, which will allow water and dirt to seep into the cracks and cause further damage. If you notice any of these signs, it's time to replace your grout. Be sure to choose a color that will complement your tile and décor.