Marble bathroom restoration in Milan

Milan draws its tap water from aquifers beneath the Po plain, and it carries plenty of calcium and magnesium. It is perfectly good to drink, yet every drop that dries on a surface leaves behind a thin film of carbonate. Over weeks, that film thickens on shower walls, basin rims and around drains. On glazed ceramic, an ordinary cleaner deals with it. On marble, things are trickier, because the deposit and the stone are chemically almost the same thing.

That is where the most common damage we see comes from. To shift the build-up, people reach for supermarket descalers, which rely on citric, formic, phosphoric or even dilute hydrochloric acid. These dissolve limescale, and they dissolve marble just as readily. The result is etching: dull, rough patches and pale streaks that trace the spray pattern or the runs down the wall. The more descaler is used, the more porous the surface becomes, and the faster it collects fresh scale and dirt.

Restoration breaks the cycle. We lift the deposits mechanically, remove the etched layer with water-cooled diamond abrasives, rebuild the finish and apply a protective treatment that makes routine cleaning far easier, so acidic products are no longer needed.

The single most useful habit costs nothing: after each shower, run a squeegee over the walls and tray, then a dry microfibre cloth. Water that never evaporates cannot leave scale behind.

For a weekly clean, warm water and a pH-neutral cleaner made for natural stone are all you need. Keep descalers, vinegar, lemon, bleach, cream cleansers and scouring pads well away, even those labelled gentle. Stand shampoo bottles and soap dispensers on a small tray, as their wet bases leave rings that are hard to remove. Check the sealant once a year and, depending on use, renew the protective treatment. In heavily used bathrooms, such as hotel rooms or rental flats, a scheduled maintenance visit keeps the result looking fresh.