Why grout turns gray
Grout is porous. Every time you mop, a little dirty water soaks into it, and our hard water leaves minerals behind too. After a few years it's a different color than when it went in, and no amount of scrubbing on your hands and knees gets it even again.
How we clean it
We spray on a cleaner that loosens the buildup, scrub the grout lines, and rinse everything with high-pressure hot water. The tool is enclosed and vacuums up the dirty water as it goes, so the grime gets removed instead of pushed around. Kitchens, bathrooms and entryways usually show the biggest difference.
Should you seal it afterward?
We recommend it. A penetrating sealer soaks into clean grout and keeps spills sitting on top instead of soaking in. Your regular mopping works a lot better for the next few years.
Got natural stone? Travertine, marble and slate need different products than ceramic or porcelain tile, because some cleaners can etch them. Let us know what you have when you call.
Typical cost: $0.75–$1.50 per square foot. Sealing is quoted separately.