Caring for Tempered Glass and Dealing with Scratches
Tempered glass is tough, but it is not scratch-proof and it is not maintenance-proof. This page in our tempered glass series covers daily cleaning, what scratches are, what can and cannot be done about them, and the warning signs that mean a pane should be checked.
Quick answer
Short answer: clean tempered glass with a soft cloth and a mild solution, never with blades, scouring pads or harsh powders. Light surface scratches are common and often just need to be lived with, because grinding or polishing tempered glass can weaken it. A chipped edge or a loose fitting is a warning sign worth acting on. Related guides: terms explained, why tempered glass breaks and ordering cut-to-size glass.
Tough does not mean scratch-proof
Tempering gives glass a compressed surface, which helps it resist impact and bending. It does not make the surface harder to scratch. A grain of grit dragged across a tempered pane can mark it just as easily as ordinary glass, and tempered glass scratches easily when it is wiped dry with a dirty cloth or when a ring, key or tool touches it.
That is useful to know because most scratches are caused by how the glass is cleaned, not by how it is used. Good habits matter more than any product. If you only remember one rule: never rub dry dirt, because the dirt is what does the scratching.
Daily cleaning: soft, mild and gentle
For regular care you need very little: a clean soft cloth, such as microfibre, and a mild cleaning solution. Many people use a glass cleaning spray or a drop of mild dish soap in water. Spray the cloth or the glass, wipe in an even motion, then buff dry with a second clean, dry cloth.
Work from the top down so drips do not fall onto glass you have just finished. In a dusty home, a first light wipe or a rinse with clean water removes the grit before you start rubbing. If you ask what is the best tempered glass cleaning cloth, the answer is simply a clean, soft one that leaves no lint, washed without fabric softener.
Dust or rinse first to lift loose grit.
Use a soft cloth and a mild solution.
Wipe gently in one pattern, top to bottom.
Buff dry with a second, clean cloth.
Wash the cloths regularly, since a dirty cloth carries grit.
What to keep away from the glass
Some cleaning habits cause lasting marks. Avoid razor blades and scrapers, steel wool, rough sponges, scouring powders and gritty creams. Avoid strong acids and harsh chemicals too, especially on printed or coated glass and near seals and metal fittings, which they can attack.
If you have paint, sticker residue or something stuck on the glass, soften it first with warm water and a little mild soap and give it time. Only then lift it gently with your fingertips or a soft cloth. If it will not move, stop and ask us instead of scraping. Our finishes and tints guide explains why frosted and printed surfaces need extra care.
Fingerprints, smudges and hard-water spots
Fingerprints come off with the routine above. Greasy marks may need a drop of mild soap in the water. Hard-water spots are different: they are mineral deposits left when drops dry on the glass, and they are most common on shower screens, balcony doors and glass near taps. Wipe water off after use and spots build up slowly.
When deposits have already formed, repeated gentle cleaning with a mild solution works better than one hard scrub. Our shower glass cleaning and limescale guide goes through that case in detail, including what to avoid.
What a scratch actually is
A scratch is a groove cut into the surface. Fine scratches, sometimes called hairlines, are shallow and show mostly when light hits at an angle. Deeper scratches catch a fingernail and are visible from every direction. Many people notice a scratch only in bright sunlight or with a lamp behind the glass.
The depth of a scratch matters for two reasons. A shallow mark is mainly a cosmetic issue. A deep scratch near an edge, or one that sits on a pane that bears load or protects people, deserves a professional opinion, because any damage to the surface can be a starting point for breakage under stress.
Can scratches be removed?
This is where honesty helps. On ordinary glass, deep scratches are sometimes polished out, but polishing works by removing glass from the surface. On tempered glass, the strength comes from the compressed outer layer, and grinding or polishing can cut into it and compromise the pane. For that reason we do not promise a scratch repair service for tempered glass, and we advise against home polishing kits or abrasive pastes.
What you can do is reduce how much a scratch shows. Clean the glass thoroughly, because dirt in a scratch makes it look worse. Light scratches become less noticeable on a tinted, frosted or patterned surface, and a pane may be easier to live with after a good clean. If a scratch is deep or in a place that annoys you every day, the clean answer is a new pane. Ask us and we will tell you what is possible.
Do not grind, buff or sand
Rubbing compounds, grinding discs and abrasive pastes remove material from the very layer that gives tempered glass its strength. If a scratch bothers you, ask the fabricator before attempting any repair at home.
Hiding scratches without damaging the glass
Some people search for ways to hide tempered glass scratches. Safe options are limited, and none of them restore the original surface. Cleaning thoroughly and drying well is the most effective step. Changing the lighting so it does not rake across the glass reduces how visible fine marks are. In some cases a decorative film applied to the surface can cover a mark, but it is a cover-up and not a repair, and we cannot promise that it will suit your glass.
Treat any product that claims to fill or erase scratches with caution. Many are abrasives in disguise. Test nothing on a pane that matters to you, and never use heat. Our overview of telling tempered from ordinary glass is useful if you are not sure what kind of glass you have.
Edge chips are a warning sign
Edges and corners are the most vulnerable parts of a tempered pane. A small chip, a shell-shaped flake or a crack starting at an edge is not just a cosmetic problem. It can be the spot where a pane later breaks, sometimes without any new knock, as stress finds the weak point. This is one of the classic causes explained in our guide to why tempered glass breaks.
If you see an edge chip, stop leaning on the pane, avoid slamming the door or moving the panel, and take photos. Keep children away from the area. A chipped edge should be assessed, and a replacement is usually the sensible answer rather than trying to file it smooth, because tempered glass cannot be edge-ground after tempering.
Check hinges, handles, gaskets and silicone regularly
Glass rarely fails on its own. More often, a loose hinge, a worn gasket or a tired bead of silicone lets the pane move, rub against metal or take a load it was not meant to carry. A short check every month or so catches these early.
Look for hinges or clamps that have started to loosen, doors that drop or catch on the floor, handles that wobble, gaskets that have flattened or split, and silicone that has lifted or turned black. Do not overtighten fittings to fix a wobble, since tight metal on glass can cause damage. Tighten gently and, if you are not sure, ask us. This matters most on glass doors, shower enclosures and glass railings.
| Part | What to look for | What to do |
|---|---|---|
| Hinges and clamps | Loose screws, movement, door sagging | Tighten gently, or ask us if the door still sits wrong |
| Handles | Wobble, cracks around the fixing | Stop using heavy force and have them checked |
| Gaskets and seals | Flattened, split or lifted strips | Replace the seal before it lets the glass rub |
| Silicone | Peeling, gaps, dark mould patches | Have it renewed so water cannot sit behind the glass |
| Tracks and channels | Grit, stuck wheels, bent metal | Clean out grit and avoid forcing the door |
| Glass edges | Chips, flakes, cracks from the edge | Treat as a warning and ask for an inspection |
What to do when a pane is damaged
If a pane is cracked, shattered or badly chipped, treat it as unsafe until it has been dealt with. A pane that has broken into small granular pieces has lost its strength, even if some of it is still in the frame. Keep people and pets away, and do not push on loose fragments.
Wear thick gloves and closed shoes if you must handle debris, and sweep carefully before vacuuming. Photograph the damage and send it to us with the sizes of the opening. We can tell you what we need to make a replacement. Because tempered glass is made to size and cannot be altered afterwards, a new pane is measured first, then fabricated. Our cut-to-size ordering guide explains the steps.
Habit checklist
These small routines do most of the work of keeping tempered glass in good condition.
| Habit | How often | Why it helps |
|---|---|---|
| Wipe with a soft cloth and mild solution | As needed | Removes marks without scratching |
| Dry wet glass | After showers or rain | Prevents mineral spots building up |
| Wash and replace cleaning cloths | Regularly | A dirty cloth carries grit that scratches |
| Check hinges, handles and seals | About monthly | Catches loose fittings early |
| Inspect edges and corners | Every few weeks | Spots chips before they become cracks |
| Keep metal objects away from glass | Always | Rings, tools and keys leave marks |
Mistakes that harm tempered glass
| Mistake | Why it is a problem | Better habit |
|---|---|---|
| Scraping marks off with a blade | Cuts into the surface | Soften with warm water and soap, then wipe |
| Polishing a scratch at home | Can weaken the pane | Ask the fabricator first |
| Rubbing dry dust | Drags grit across the glass | Rinse or dust first |
| Over-tightening hardware | Tight metal can stress the glass | Tighten gently and check alignment |
| Ignoring a small edge chip | Edges are where failures start | Photograph it and ask for advice |
| Using harsh chemicals | Can damage seals, fittings and coatings | Use mild soap and water |
When to ask for a replacement
Ask us about a replacement when a scratch is deep or in a prominent place, when an edge or corner has chipped, when a crack has appeared, when a pane has broken, or when the glass is in a position where safety matters and you are not sure of its condition. Replacement is also the sensible path if a pane has been polished or ground at home, as we cannot judge how much it has been weakened.
To start, send photos of the damage, the whole pane and the surrounding frame or hardware on WhatsApp, or use our contact page. We measure, confirm what is needed and give you a quotation. Nothing is made until the sizes and details are agreed.
Frequently asked questions
How do I clean tempered glass without scratching it?
Dust or rinse first, then wipe with a clean soft cloth and a mild solution, and buff dry with a second cloth. Avoid blades, scouring pads and gritty cleaners.
Does tempered glass scratch easily?
It can scratch like ordinary glass, because tempering adds strength but does not make the surface harder. Most scratches come from dirt rubbed in while cleaning.
Can scratches be polished out of tempered glass?
We do not recommend it, and we do not offer scratch repair for tempered glass. Grinding or polishing removes material from the strengthened surface and can weaken the pane.
Is a small edge chip dangerous?
It can be. Edges are the weak spot of tempered glass, and a chip may be where the pane later breaks. Photograph it, avoid knocks and ask us for advice.
What is the best cloth or spray for tempered glass?
A clean, soft cloth that leaves no lint and a mild glass cleaner or soapy water are enough. The key is a clean cloth and gentle wiping.
How often should I check hinges and silicone?
A quick look about once a month is a good habit. Check for loose fittings, worn gaskets, lifted silicone and edge chips.
What should I do if a tempered pane cracks?
Keep people away, avoid touching the pane, and photograph it. Contact us with the sizes and photos so a replacement can be measured and made.
Want us to measure and advise?
Send the bathroom measurements or a photo of the space on WhatsApp, or call us to arrange a measurement and a quotation.