How to clean glass and sanitaryware after a renovation without damaging them

Cleaning newly installed glass and sanitaryware seems the simplest task in a final site clean-up, until you try it with an ordinary damp cloth and find that paint or cement residue doesn't just come off.

Glass: scraper, not cloth

Window and glass cleaning removes paint, silicone, masking tape and building dust from glass, frames and tracks. Paint or mortar splashes on glass don't come off with a simple damp cloth: they need a specific glass scraper, taking care not to scratch the glass or the frame. Using the wrong abrasive tool can leave permanent marks that no cleaning product will remove afterwards.

Sanitaryware and tiles: timing matters more than the product

Cleaning sanitaryware and tiles removes cement, silicone and building dust from sanitaryware, taps and newly installed tiling. The real key isn't the product, it's the moment: clean cement grout residue off the tiling as soon as possible after laying. Once the cement has been dry and cured for days, it's much harder to remove from the glaze without damaging it — no product fully makes up for having waited too long.

Why these two tasks are underestimated

Both look like "just cleaning" at first sight, but they require a specific tool (glass scraper) or the right timing (fresh cement). Treating them as a generic end-of-job clean, without that care, is what leaves scratch marks on the glass or embedded cement residue that no longer comes off without damaging the glaze.

Frequently asked questions

Can I clean paint residue off glass with an ordinary scouring pad? It isn't recommended: it can scratch the glass. Always use a specific glass scraper, taking care not to damage the frame either.

How long do I have to clean cement off tiling before it gets harder? As soon as possible after laying, ideally the same day — once the cement has cured, it's much harder to remove without damaging the glaze.

What happens if I clean the sanitaryware several days after it's installed? Cured cement residue is much harder to remove without damaging the finish, so the end result can be worse than if it had been cleaned fresh.

Conclusion

Cleaning glass with the right tool and sanitaryware with the right timing —fresh, not days later— is what separates an immaculate handover from one with marks or residue that can no longer be fully corrected. They are details of timing and technique, not of more or less cleaning product.