Travertine cleaning and sealing in Rose Bay

Travertine in Rose Bay apartment buildings tends to wear in a recognisable pattern: a darker traffic lane from the street door to the lifts, filler missing from holes near the entry, dull etched patches where an acidic cleaner was used, and rings where pot plants stand. On balconies facing the bay, salt air and rainwater leave a grey film and white scale along the edges. On harbourfront houses, the travertine is more often a pool surround or terrace with the usual mix of pool scale, sunscreen and food oil. The settings differ, but in each case the stone is a limestone, and that single fact decides how it can and cannot be cleaned.

Lobby and entry work starts with protection: walls, lift doors and timber are masked, and the floor is cleaned in sections using calcium-safe alkaline cleaners and a floor machine fitted with soft pads that reach into the holes. Rinse water is extracted as we go rather than mopped around. Etching is identified up front: cleaning cannot remove it, so if the entry is visibly etched we quote honing as a separate option. We also leave the building manager with a short list of products that are safe for the cleaning contractor to use, because the wrong routine product is the most common cause of etching we find in Eastern Suburbs lobbies.

Sealing travertine in a strata entry is mainly about keeping it cleanable. A penetrating impregnator slows the uptake of spills, grime and water while leaving the stone's natural finish and grip, which matters on a wet day when residents track rain in from the street. Open holes are filled with a tinted filler before the sealer goes on. For balconies and pool terraces exposed to salt, the product is chosen for that exposure instead. We record what was applied and where, so the next round of maintenance can be planned and budgeted by the owners corporation, and we suggest a quick water-drop check each year at the door, where wear is heaviest.