Slate entries and steps
Shaded, damp slate builds an organic film that dulls the surface. We flush it out with hot water extraction, then seal so the next winter’s leaf litter sits on top of the finish.
Stone, Tile & Grout · Mill Valley
Stone, tile, and grout cleaning from a shop two minutes away.
Slate entries that have gone dull, Saltillo that lost its color, and grout that darkened years ago. Canyon houses are hard on all three, and all three come back.
Why Mill Valley is hard on stone, tile & grout
The classic Mill Valley stone problem starts outside. Damp shade, leaf litter, and constant foot traffic from the trails put an organic film on slate entries and steps that a broom slides straight over. Inside, that same grit gets ground into grout joints in the kitchen and mudroom.
Saltillo is the other one we get called about constantly here. A Saltillo floor that looks faded and blotchy has usually lost its sealer rather than its color — years of damp and cleaning products have worn it off in the traffic lanes. Cleaning and resealing typically brings the original tone back, and the difference between the before and after tends to surprise people.
Because we are based at Tam Junction, we can usually get a technician out to look at a floor quickly rather than quoting it blind. For stone that may need restoration instead of cleaning, that visit is worth having before you spend anything.
What we see here
Mill Valley surfaces we work on most
Faded Saltillo and terra cotta
Cleaning and resealing usually restores the original color. What looks like a permanently washed-out floor is generally a floor whose sealer wore off in the traffic lanes.
Kitchen and mudroom grout
Trail grit and pet traffic drive soil below the level of a mop. Extraction lifts it out of the joint, and resealing keeps it from going straight back in.
In their words
Mill Valley clients on this work
“You have remained one of the few true professionals that still understand what excellent customer service means.”
From neighboring Marin towns, while we build up our Mill Valley review count:
“My marble entry cleaned up much better than I thought it would, it looks like new again. You did a great job!”
“You transformed my kitchen tile, it looks brand new now. Thank you for the excellent job.”
FAQ
Stone, Tile & Grout questions from Mill Valley
Can faded Saltillo tile be brought back without replacing it?
In most cases, yes. Faded Saltillo is usually a sealer problem rather than a tile problem. We clean the floor thoroughly, then apply and buff a sealer matched to the material, which typically restores the original color and depth.
How often should Mill Valley stone and grout be resealed?
Every two to three years for most homes, and toward the shorter end for shaded canyon houses and heavily used entries. We assess sealer condition at every cleaning and tell you what we see.
General stone, tile & grout questions
How often should tile and grout be professionally cleaned?
For most Marin homes, every two to three years. Kitchens, entries, and bathrooms in busy households can need it closer to every eighteen months. Grout is porous, so once soil works below the surface a mop pushes it around rather than lifting it out — that is the point where professional hot water extraction pays off.
Can you restore the color of my grout?
Usually, yes. Most grout that looks permanently dark is not stained through, it is holding soil in its pores. Truck-mounted hot water extraction lifts that soil out and typically brings the grout back several shades. Where grout has been dyed, damaged, or worn below the surface, we will tell you that at the estimate rather than after the job.
Do you seal stone and grout afterward?
Yes, and we recommend it on nearly every job. Most natural stone, all grout lines, and many clay and cementitious materials are porous enough to stain without a sealer. We test sealers and application procedures ourselves, so what goes on your floor is matched to the material. Sealing is best done right after a professional cleaning, while the surface is clean and dry.
How long does a stone, tile, and grout job take?
A typical kitchen or bathroom floor takes two to four hours. Larger areas, heavily soiled Saltillo, or stone that needs restoration take longer, and we will give you the time estimate along with the price before we start. Sealed surfaces are usually ready for normal use the same day.
Can you fix etched or dull marble countertops?
In most cases we can restore etched marble back to a uniform finish, then seal it. Etching is a chemical reaction between acid and the stone rather than a stain, so it needs a mechanical restoration, not a stronger cleaner. Send us a photo or let us see it at the estimate and we will tell you honestly what is achievable.
Will cleaning damage my natural stone?
Not with a method matched to the material. We use neutral-pH products and adjust pressure and dwell time by surface — marble, limestone, travertine, slate, granite, terra cotta, Saltillo, and concrete all behave differently. The damage we most often get called in to correct comes from household cleaners: vinegar, bleach, ammonia, and general-purpose sprays.
From the blog
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Read the postStone, Tile & Grout estimates in Mill Valley
Send us a photo by text and we will tell you what is realistic before anyone comes out.