Sanded grout is both porous and absorbent, which means they require a seal, and it’s pretty safe to assume a sealant was used during installation. Grout lines are generally lower than the tiles, so water fills the grout lines and soil from daily traffic and cleaning are deposited on the grout. That is compounded when sanded grout is used because of the natural porosity of the material. That means — especially with new customers who may not have a regular maintenance program — the grout lines are likely to be discolored. Here are some quick tips to get the grout looking new and keep it looking great.
• Assuming the grout was sealed properly during installation (or additives were used in the grout), step one for new customers is a rigorous scrub and rinse with either a neutral cleaner or all-purpose cleaner.
• Step two is to ensure routine maintenance, consisting of daily sweeping or mopping (depending on amount of floor traffic) with a neutral cleaner. If the tiles are located in restrooms or kitchens, the routine is the same —simply use a degreaser or sanitizer in the solution.
• Be sure to convince your customer of the value of a periodic maintenance plan, because even with daily cleaning grout becomes soiled and needs a more thorough cleaning. This usually involves scrubbing and rinsing, anywhere from weekly to quarterly depending on use.
If the grout has not been well maintained, it may need restoration. For some good advice on restoring grout — and on a more in-depth look at grout cleaning in general — see https://www.onsuttonplace.com/how-to-restore-grout-the-easy-way/.