Your Shower Glass Can Look New Again - Here's How

Problem

Hard-water deposits (lime scale / calcium carbonate) build up on shower glass, leaving a white, rough, sandpaper-like residue. This residue is difficult to remove and easy to scratch if you use mechanical abrasives.

What was tested and outcome

• Bleach: no effect on lime scale.
• Supermarket “post-shower” glass sprays: designed for maintenance; ineffective on heavy deposits.
• Viakal (commercial limescale remover): worked better than the above but not perfectly; produces strong fumes.
• White vinegar (~5%): inexpensive, pleasantly scented option; removed a lot of the deposits and outperformed most supermarket products.
• Concentrated vinegar (high-strength) mixed with alcohol (approx. 3 parts vinegar : 1 part alcohol): best result — quickly cut through grease and heavy limescale, giving the clearest glass after a 5-minute dwell and rinse.

Practical step-by-step method

1. Apply the chosen cleaner to the glass (spray or wipe on).
2. Let it sit for about 5 minutes.
3. Rinse thoroughly with water.
4. Dry with a paper towel, then polish with a microfiber cloth to remove streaks and remaining water.
5. Repeat on stubborn areas as needed.

The concentrated vinegar + alcohol mix cleans both grease (alcohol) and mineral deposits (vinegar). A 5-minute dwell usually produces the clearest results.

Tips, precautions, and additional advice

• Avoid mechanical abrasives (scouring pads, wire wool, sandpaper) — they will scratch the glass and make the problem worse.
• Use good ventilation (open a window) when using strong chemical cleaners to avoid fumes.
• If you decant homemade mixes into spray bottles, label them clearly.
• Regular maintenance sprays are useful to keep glass clean once restored, but they won’t remove heavy limescale.

Notable products, items and context

• Products/items: bleach, supermarket shower glass sprays, Viakal (limescale remover), white vinegar (~5%), concentrated vinegar, rubbing alcohol, spray bottle, paper towels, microfiber cloth.
• Location: UK (hard water areas mentioned).
• Speaker: DIY homeowner demonstrating and testing products in his own shower (unnamed).