Most people find this page after discovering that nothing in the cupboard touched the mark on their window. That is the correct discovery. Glass scratch repair is not a product you wipe on — it is the controlled removal of a thin layer of the pane until the scratch has nothing left to sit in.
There is no filler
Start here, because it kills half the advice on the internet. Any resin, polish or wax put into a scratch bends light differently than the glass around it. Wet it and the line disappears; let it dry and the line is back. Windshield chip resin works on a chip because the crack is sealed inside laminated glass — it is a structural repair, not an optical one, and it is a different job entirely.
Real correction goes the other way: the surface around the scratch comes down to meet the bottom of the groove, and then the optics of the whole panel are rebuilt in stages from coarse to fine. Done properly you cannot find where the damage was. Done impatiently you get a shiny dish that distorts everything behind it.
What we can usually take out
These are the kinds of damage that respond well to polishing:
- Fine scratches — visible in raking light, your fingernail glides straight over them. Often a whole field of them from dry wiping or a bad squeegee.
- Swirl marks — circular micro-scratching, usually from cleaning a dusty pane with a sponge or washing it dry.
- Wiper marks — arcs cut by worn blades, mostly on vehicle and RV glass. Distinctive shape, straightforward correction.
- Deep scratches and scratch tags — your fingernail catches. Correctable in many cases, more glass has to come off, and the panel needs more finishing work afterwards to stay optically clean.
- Construction damage — the classic post-build mess: scraped mortar, splashed stucco, and the scratches left by whoever razor-bladed the splashes off. That one has its own page, post-construction glass restoration.
What we cannot
- Rock chips. A chip is a crater with a cone under the surface. Polishing the surface does not reach the cone; that panel is a replacement, and in a driver’s line of sight we do not polish at all — the optics matter more than the mark.
- Coated glass. Low-e, mirror and anti-reflective surfaces come off with the damage. If the scratch is on the coated face, restoration is the wrong tool.
- Damage into the interlayer of laminated glass, or haze between the panes of a failed insulated unit. Neither is on a surface we can reach.
- Windows with glued-on grilles — simulated divided lite. The head cannot get to the glass beside the bars without destroying them, so those panels are quoted as replacement by rule.
The fingernail question
Every estimate turns on depth, and depth is the one thing a photograph will not tell us. Light and angle make a hairline look like a gouge and a gouge look like nothing. So we ask the question you can answer in two seconds: drag a fingernail slowly across the mark — does it catch and stop, or slide over?
Slides over: fine scratching, the straightforward end of the work. Catches: deep, more surface has to come off, and the surrounding area needs more attention to avoid leaving distortion. Anyone quoting a firm number without knowing which of those two it is, is guessing.
What a visit looks like
The work is done in place, wet, on site. The panel gets flooded, a polishing head with a graded compound works across the full pane, and the grade steps down through several passes until the surface reads as one piece again. Water controls the heat — glass heated unevenly next to a cold frame is how panes crack — and it carries the removed glass away as slurry. Floors and frames get masked and the slurry is collected; it is messy work done tidily, not a dusty one.
A single small residential pane is short. A row of storefront panels is a day. Height, scaffolding, occupied retail floors and after-hours access all add to it, which is part of why the number is per job rather than off a rate card. We wrote out everything that moves the figure in what glass scratch removal actually costs in Los Angeles.
Do not experiment first
Toothpaste, baking soda, brass polish and a magic eraser all show up in search results and all of them cut glass in an uncontrolled pattern. A single clean scratch is an easy job; that same scratch surrounded by a hazy hand-rubbed patch is a harder and larger one. The whole list, and why each one fails, is in glass scratch myths that make damage worse.
Doing it yourself
Fine scratching on an accessible panel is a fair DIY project with proper abrasives and patience. The DIY glass restoration kit is $279; the commercial kit is $499 and adds discs and polishing stages for heavier work. Start on a panel nobody stares at. This guide walks through where the line sits.
Send photos
Three shots settle almost every case: the whole panel in frame, one taken at a low raking angle so the scratches catch the light, and a close-up of the worst one with the damage circled if it is hard to spot. Tell us how many panels, roughly what size, and whether the fingernail catches.
Call or text 818-356-1345, email info@theglassrestore.com, or start from our glass scratch removal page. If the panel is one we should not polish, that answer comes back too.