Here is a question that surprises people: what colour is your grout supposed to be? Most homeowners have not seen the real colour in years. Grout darkens so gradually that the eye adjusts, and because mopping cannot fix it, the whole floor slowly reads as dingy no matter how often you clean.
Why grout gets dirty and stays dirty
Tile is sealed and smooth; grout is porous, like a hard sponge. Every pass of the mop lifts dirt off the tile and washes a little of it straight into the grout lines, where it soaks in and stays. Kitchen grout absorbs grease; bathroom grout absorbs soap scum and, in damp corners, hosts mildew. Once the pores are loaded, household cleaners only touch the surface.
The DIY ceiling
Scrubbing grout lines with a brush and baking soda works — for about one metre, which is when most people’s knees and patience give out. Harsh acids can etch grout and damage stone tile, and bleach lightens the stains without lifting out the embedded soil, so the darkness returns in weeks.
What professional cleaning does differently
We apply a professional-grade alkaline cleaner that penetrates the grout pores and breaks down years of embedded grease and soil, agitate it into the lines, then rinse and extract with heated high-pressure equipment that pulls the dirt out rather than spreading it around. The before-and-after line down the middle of a half-done floor is usually startling. For stone, porcelain, and ceramic we adjust the chemistry to protect the surface, and we can apply a penetrating sealer afterwards so the grout resists staining and stays cleaner far longer.
Where it makes the biggest difference
Kitchens, entryways, and bathrooms show the most dramatic change, and tiled showers deserve special mention — professional cleaning removes the soap film and mildew staining that no daily spray keeps up with. For most homes, tile and grout deep cleaning every one to two years keeps floors looking new, especially with a sealer.
Want to see your grout’s real colour again? Check our tile and grout cleaning service, book online, or call 1-844-784-7772. We serve all five regions — find yours on the locations page.


