Natural stone restoration
We restore marble, limestone, travertine, granite and terrazzo across Bay Area lobbies, corridors, elevator banks and stairs. Through inspection, deep cleaning, progressive diamond honing, polishing and penetrating sealers, we bring worn architectural stone back to a uniform, protected finish.
What we look for
On the walk, across marble, limestone and terrazzo.
- Stone composition and bedding
Calcite-based marble, limestone and travertine versus silicate granite or cement and epoxy terrazzo: each responds differently to diamond grits and compounds.
- Acid etching and rings
Dull spots near coffee bars, restrooms, bottle fillers and entry doors where acidic spills or improper cleaners have etched the calcium surface.
- Lippage and grout joints
High tile corners that catch shoe soles and floor machines, plus cracked or recessed joints that trap soil and moisture.
- Embedded stains and failed coatings
Oil, rust or organic discoloration wicked into porous limestone, or yellowed topical waxes applied over stone that was meant to breathe.
- Stair treads, landings and thresholds
Hand-tool access for risers, stair nosings, elevator sills and border inlays where full-size rotary machines cannot reach.
- Desired finish and sheen
A soft honed matte that hides foot traffic in limestone corridors, a warm satin sheen, or a formal high polish in a reception atrium.
Marble and limestone process
Four steps from dull stone to a protected finish.
Natural stone restoration refines the stone itself rather than hiding scratches under a wax coat that peels and yellows.
Inspection and surface assessment
We test the stone type, map lippage, scratches, acid etching and moisture, and mask baseboards, glass walls and adjacent flooring before work begins.
Deep cleaning and stain treatment
Alkaline or pH-neutral stone cleaners lift embedded soil from pores and joints, and targeted poultice treatments draw out localized oil or organic stains.
Diamond honing for scratches and etching
Progressive resin-bond diamond pads remove surface scratches, traffic wear and acid etch marks, leaving a smooth, uniform honed surface free of distortion.
Polishing and penetrating protection
Fine polishing compounds develop a honed, satin or high-gloss finish, followed by a breathable penetrating sealer that resists water and oil absorption.
What we write down
What goes into the stone restoration scope.
Finish specification
Honed matte, satin or high polish written by room, with sample test areas approved on the walk.
Sealer and chemistry
The penetrating sealer, neutral daily cleaner and poultice materials named with safety sheets on site.
Care plan and schedule
Walk-off mat placement, microfiber dusting and periodic diamond burnishing written into your calendar.
Restored marble, limestone and terrazzo
Questions about natural stone restoration
What is the difference between a honed finish and a polished finish?
A honed finish stops at a smooth, velvet matte or low-satin diamond grit that diffuses light and conceals everyday foot traffic. A polished finish continues through finer diamond stages until the stone reflects overhead lighting like a mirror.
Does a penetrating sealer change the look of marble or limestone?
No. A natural-look penetrating sealer absorbs below the surface to slow water and oil penetration without leaving a plastic film or changing the sheen developed by the diamonds.
How do you keep daily janitorial crews from dulling freshly restored stone?
We train the nightly crew on pH-neutral stone cleaner dilution, clean microfiber pad rotation and walk-off mat upkeep, and remove acidic, vinegar, ammonia and abrasive products from the closet.