Natural Stone Cleaning and Sealing
Deep cleaning and professional sealing that protect natural stone and keep it looking its best, indoors and outdoors.
Protection that keeps the work looking new
Most natural stone is porous. Coffee, oil, wine, pool water and everyday dirt can soak into the surface and leave stains that are hard to remove. Outdoors, the South Florida sun, humidity and rain add mold, algae and discoloration to porches, patios, terraces and pool decks.
We start with a deep cleaning that removes what household products cannot reach, then apply a penetrating sealer chosen for the stone and the location. A good sealer does not change the look of the stone, but it slows down absorption so you have time to clean up spills before they become stains. On porcelain, sealing usually applies to the grout joints or to porcelain products made to receive it, since most dense porcelain does not need an impregnating sealer.
Cleaning and sealing is also the best way to protect a floor or countertop right after a restoration, and it is one of the simplest ways to extend the life of your stone.
Signs your stone needs stone cleaning and sealing
- Water darkens the stone within minutes
- Stains from oil, coffee or wine
- Outdoor stone with mold or dark patches
- A porch or patio that looks dirty after rain
- Grout that absorbs dirt quickly
- Stone that was never sealed
Before After
Front porch
because of the condition of the stone, this project went beyond cleaning and sealing and also required honing and polishing to bring back a bright, even finish.
Drag the slider to compare the stone before and after our work.
See more projectsHow we approach stone cleaning and sealing
Every project starts with understanding the stone. These are the steps a typical stone cleaning and sealing project follows.
- 01
Absorption test
We check how quickly the stone absorbs liquid to choose the right sealer.
- 02
Deep cleaning
Dirt, residue, mold and discoloration are removed from the surface and pores.
- 03
Rinse and dry
The stone is rinsed and left to dry fully before any sealer is applied.
- 04
Sealing
A penetrating sealer is applied and the excess is removed for an even finish.
- 05
Care guidance
We explain how to clean the stone day to day so the protection lasts.
Surfaces we work on
- Marble
- Travertine
- Limestone
- Granite
- Outdoor stone
- Grout joints
Stone Cleaning and Sealing questions
Do you have a question that is not answered here? Call us or send a message.
More questions“Alberto, Victor and Rodrigo did a great job with cleaning and sealing all of our porcelain terraces. They work very hard and pay attention to detail.”
How do I know if my stone needs sealing?
Place a few drops of water on the surface. If the stone darkens within a few minutes, it is absorbing liquid and will benefit from sealing.
Does sealing make stone stain-proof?
No sealer makes stone completely stain-proof, but a good penetrating sealer gives you much more time to clean up spills before they absorb.
Do you clean and seal outdoor porches and terraces?
Yes. We clean and seal porches, patios, terraces and pool decks, which are especially exposed to sun, rain and humidity in South Florida.
You may also need
Tile and Grout Cleaning Deep cleaning for porcelain, ceramic and grout that returns floors and walls to a like-new appearance, indoors and out. Learn more 
Marble Floor Polishing We remove stubborn stains, scratches and etching to bring marble floors back to their original look and depth of shine. Learn more 
Countertop Restoration Specialized techniques and precision diamond pads restore marble, granite and quartzite to a smooth, even finish, from honed to polished. Learn more Get a free estimate for stone cleaning and sealing
Tell us about the surface, the area and what you would like to fix. We will follow up with the next steps.
