Glass, mirrors and shower-screen care

What this guide covers

Clear glass, mirrors and shower screens collect fingerprints, soap residue and mineral deposits, but the visible surface may have a coating that changes what is safe. Frames, seals, backing and decorative films also need protection. This guide covers routine household care, not scratch removal or glass restoration.

Check the surface or item

Identify whether the panel is ordinary, tinted, etched, printed, filmed, low-emissivity, self-cleaning or treated with a water-repellent coating. Find the glazing or shower-screen manufacturer's instructions where possible.

Inspect edges and corners for chips or cracks before applying pressure. Check mirror edges for darkening or lifting backing, and look at nearby stone, metal, paint, sealant and wood because a glass-safe product may not suit those materials.

Before you start

Remove jewellery that might scratch the surface. Use clean, soft, lint-free cloths and check them for trapped grit. Rinse or lift away loose particles before wiping; Pilkington guidance warns that sand, stones and dirt can scratch glass when caught beneath a tool.

Patch test the selected cleaner on decorative, coated or unfamiliar glass. Protect frames and adjacent finishes, ventilate when the product label requires it, and control drips around mirror edges and electrical fittings.

A conservative approach

For plain glass, start with clean water or warm soapy water when the manufacturer allows it. Wet the surface enough to release soil without flooding edges, then wipe gently with a clean soft cloth. Use a separate clean cloth to finish and change it when it becomes contaminated.

For shower screens, frequent removal of fresh water and soap residue is usually gentler than allowing heavy deposits to build. Follow the screen and coating maker's approved-product list rather than assuming every limescale product is compatible.

For mirrors, apply a small controlled amount to the cloth when appropriate rather than spraying liquid towards the backing, frame or lower edge. Dry promptly.

What to avoid

• Do not scrape dry glass or trap grit beneath a cloth, blade or squeegee.
• Do not use abrasive pads, powders or unapproved blades.
• Do not assume a product safe for plain glass is safe for coated, filmed, etched or self-cleaning glass.
• Do not flood mirror edges, frames, seals, electrical lights or sockets.
• Do not let an acidic limescale product contact natural stone or vulnerable metal.
• Do not clean cracked or unstable glass.
• Do not mix descaler, bleach, disinfectant or any other cleaning products.

When to stop and seek advice

Stop if a coating becomes patchy, colour transfers, a film lifts, the mirror edge darkens, a seal fails, or the glass is chipped, cracked or moving in its frame. Do not press on damaged safety glass.

Ask the glass, mirror or shower-screen manufacturer about persistent deposits, specialist coatings and approved restoration products. A glazier should assess damage or instability. Unknown residue from building work belongs with the later construction-cleaning investigation, not an improvised household method.