Your outdoor travertine is likely turning black due to biological growth (like mold, mildew, or algae) combined with travertine's porous texture trapping dirt and minerals. It can also be caused by improper sealants or cleaning chemicals.
Yes, Dawn dish soap is generally safe for travertine, provided it is heavily diluted, you use a mild formulation, and you rinse the stone thoroughly. However, it is best reserved as a spot-cleaner rather than an everyday maintenance product.
For outdoor travertine, the best and safest cleaner is a pH-neutral stone cleaner, such as Granite Gold Outdoor Stone Cleaner (about $7) or Black Diamond Stoneworks Natural Stone Cleaner. These are non-acidic, gentle on the porous surface, and won't etch the stone or harm surrounding plants and pets.
To prevent stains on outdoor travertine pavers, prompt spill and debris removal is essential for homeowners. Liquids (especially around pools or areas with hard water, which can leave calcium deposits), oils and food can quickly seep into the porous surface, causing discoloration and stains.
Vinegar is acidic and can damage travertine, which is a type of natural stone. When vinegar comes into contact with travertine, it can etch the surface, causing dull spots, discoloration, and erosion. It is best to avoid using vinegar or other acidic cleaners on travertine.
On average, you can expect to pay no more than $1.50* per square foot to clean and seal your stone. You should also consider polishing your stone for an additional $1.50* per square foot. For more information, check out our Natural Stone Cleaning Page. (*Prices subject to change.
Murphy's is essentially a mild, vegetable-oil-based soap. When properly diluted, it has a near-neutral pH and contains no harsh solvents or acids. That's why it's gentle on wood—and also why it won't etch calcium-based stones like marble or travertine.
How to Polish Travertine Floors
Yes, you can use hydrogen peroxide on travertine, but it must be done with caution. It is an excellent, stone-safe alternative to harsh bleach or acids for lifting organic stains (coffee, wine, food), mold, and mildew.
For oil or grease stains, create a poultice by mixing baking soda and water to form a paste. Apply the poultice to the stained area, cover it with plastic wrap, and let it sit overnight. The poultice will absorb the oil or grease, making it easier to remove the next day with a gentle rinse and wipe.
Do not use products like Mr. Clean, dish soap, Windex, porcelain cleaners, or anything like these products. These products leave a residue on top of the travertine tiles, collecting and attracting dust and dirt. Over time, the dirt and dust could start absorbing into the Travertine and could cause staining.
The best homemade solution for general deck cleaning is a mixture of oxygen bleach (e.g., OxiClean) and liquid dish soap. It is highly effective at lifting dirt, grease, and mild algae, without the harsh wood-damaging and plant-killing effects of traditional chlorine bleach.
No, you should never use standard CLR on travertine. Travertine is a calcium-based natural stone, and standard CLR contains acids that will chemically react with it. This causes immediate "etching" (eats away the polished surface), resulting in dull, rough, or permanently discolored spots.
Bathroom tile trends for 2026 are all about warmth, texture and quiet confidence ✨ Travertine continues to lead the way, especially in larger formats with minimal grout lines, creating calm spa-like spaces that feel timeless rather than trend-led.
Avoid harsh cleaning agents
While travertine pavers are good at withstanding tough weather, they can corrode with the use of harsh cleaning chemicals such as ammonia, bleach, or scouring powders.
Evaluate the surface in good lighting, applying additional polishing to any imperfect areas.
Topical sealers might offer more shine, but they can become cloudy over time and require more regular maintenance. Resealing frequency depends on usage—every 1–2 years for busy homes and every 3–5 years for low-traffic spaces. Read here to learn more about the different travertine sealing options available to you.
To clean outdoor travertine tiles, sweep away loose debris and scrub with a pH-neutral stone cleaner (avoiding harsh acids like vinegar or bleach). Rinse thoroughly with a garden hose on medium pressure, never a high-powered pressure washer, to prevent etching the stone’s surface.
It is not recommended to use Dawn dish soap or any acidic or harsh cleaners on travertine, as they can damage the stone's surface and dull its finish. Instead, use a pH-neutral stone cleaner or mild soap specifically designed for natural stone surfaces.
Unfortunately, Pine-Sol can potentially strip and damage the sealer on travertine. You may need to have the floors re-sealed by a professional after thorough cleaning. Avoid acidic cleaners going forward. Travertine is vulnerable to etching from acidic substances.
For Water Based Finishes
Cleaners such as Pledge and Murphy's Oil Soap are not recommended because they leave a dull residue on the finish. Water based surfaces may be cleaned with a damp cloth or General Finishes Orange Oil.
Sealing travertine is a pivotal measure in safeguarding its allure and structural integrity. Without this protective layer, travertine becomes vulnerable to moisture infiltration, paving the way for unsightly stains, etching, mold mildew, and potential structural deterioration from salt or chloride attack.
Yes, travertine is widely considered a luxury natural stone. Valued for its unique veining, earthy textures, and historical pedigree (famously used to build the Colosseum), it is a staple in high-end design for creating a sophisticated, spa-like, or "quiet luxury" aesthetic.
You can literally pick up a buffer (or just use a ton of elbow grease) and go through the 3-4 stages you would use to buff a car. Just be sure to let the customers know that travertine is soft - and if they drag something across the tiles, they will scratch.