How to Clean and Care for Marble Floors

Etching and staining are different problems

A stain is something absorbed into the stone — oil, wine, rust — which sits below the surface and can often be drawn back out with a poultice. Marble is porous, so staining is a real risk and sealing genuinely helps.

Etching is chemical damage. An acid has dissolved the polished surface, leaving a dull patch that is physically rougher than the stone around it. No amount of cleaning removes it, and a sealer does not prevent it — sealers reduce absorption, they do not neutralise acid. Etching is repaired by re-polishing, which means a professional with diamond abrasives.

This is the distinction that decides everything about marble maintenance. Guard against staining with a penetrating sealer reapplied every year or two. Guard against etching by keeping acids off the floor entirely — which in a kitchen or a bathroom is a demanding standard to hold.

Caring for a marble floor

• Use only pH-neutral stone cleaner — Not vinegar, not lemon, not general bathroom or limescale products. Anything acidic etches on contact.
• Dust-mop daily — Grit is harder than marble and will scratch a polished surface underfoot.
• Blot spills immediately — Blot, do not wipe — wiping spreads the spill over more of the porous surface.
• Seal, and reseal — A penetrating sealer every one to two years, more often in a kitchen. It slows absorption; it does not stop etching.
• Mat the entrances — The first few metres inside a door is where almost all abrasive grit arrives.
• Draw out stains with a poultice — A paste that pulls the stain back out as it dries. Repeat rather than scrubbing harder.
• Never use abrasive pads or powders — They dull a polished finish permanently across the whole area.

The alternative worth knowing about

Marble-effect porcelain reproduces the same veining with none of the chemistry. It does not etch, because there is no calcium carbonate to dissolve. It does not stain, because a glazed vitrified body absorbs essentially nothing. It never needs sealing, and acidic cleaners do it no harm at all.

At large formats with tight rectified joints and printing taken from many different faces, the visual difference at standing height is small. In a kitchen, a bathroom or any commercial floor — the three places real marble is hardest to live with — it is usually the better specification.

Where real marble still wins is depth and the fact that it is the actual material. For a feature wall or a low-traffic formal room where nobody will spill lemon on it, that argument holds. For a working floor it rarely does.

Marble effect tiles · GVT & PGVT range

Frequently asked questions