Glass Cleaning & Graffiti Removal
Paint comes off glass easily. Scratching and acid etching do not — and knowing the difference before anyone starts work is what saves a client the cost of a replacement pane.
Glass splits sharply into two categories of job. Paint on glass is one of the easiest removals in our trade — the surface is completely non-porous, nothing penetrates, and a sound pane comes back to perfect with no shadow whatsoever. Etched or scratched glass is one of the few things we genuinely cannot fix.
Knowing which one you're looking at is the important part, and it isn't always obvious from a photograph. It's worth establishing before anyone quotes, because the difference is between a short visit and a glazier.
Paint on glass
Straightforward, and satisfying. Aerosol, emulsion, paint thrown from a bottle — none of it bonds to glass in any meaningful way. Softening it and lifting it cleanly gets the pane back to as-new every time.
The one real risk is the removal technique. Blades and abrasive pads are quick, and on plain float glass in good condition a skilled operative can use a blade safely. On toughened glass — which most modern shopfronts, doors, balustrades and bus shelters use — a blade can leave fine scratches, because the surface is under compression and behaves differently. Those scratches can't be polished out.
It gets riskier still with coated glass. Low-E, solar control, self-cleaning and anti-reflective coatings, and any applied film such as manifestation, privacy or security film, all sit on the surface and are damaged by scraping or strong solvents. On a modern building, assuming a pane is uncoated is a costly assumption.
Before anyone puts a blade to a shopfront, establish whether the glass is coated or filmed. Removing the paint is easy; replacing a scratched toughened or coated pane is not, and it's usually a bespoke size with a lead time.
Scratching and acid etching
This is the type of glass vandalism nobody can clean. Scratched tagging — done with a stone, a blade or a hardened tip — physically removes material from the surface. Acid etching, using a paste or pen sold for glass craft, chemically eats into it. Both leave a mark that is part of the glass, not on it.
There's no cleaning method, no chemical and no polish that restores it. Very light surface scratching can occasionally be improved by specialist glass polishing, but it's a slow, skilled process that can introduce optical distortion, and it's usually only worth considering on a large or expensive pane. In most cases the honest answer is replacement.
We'll tell you that immediately rather than trying a clean first and charging you for it. What we can do is help with the follow-up: anti-graffiti film applied to a replacement pane is a sacrificial layer, so the next attack means peeling and replacing a film rather than reglazing. On bus shelters, station glazing and repeatedly targeted shopfronts that's a substantial saving.
Paint or damage on your glazing?
Send a photo taken at an angle with light across the surface — that usually tells us whether it's a clean or a replacement, before anyone comes out.
Stickers, posters and adhesive
Glass attracts fly-posting and stickers heavily — it's flat, clean and highly visible, which is exactly what a poster wants. Removal is usually good, though the adhesive is often more work than the paper.
Heat softens the adhesive so the material comes away in one piece rather than shredding into layers, then a solvent handles the residue. The care needed is around any film or manifestation on the pane and around the frame gaskets and mastic, which some adhesive removers will attack.
Long-established posters that have been rained on and dried repeatedly are the difficult ones — the paper delaminates and the adhesive cures hard. They come off, but it's slower, and it's a good argument for dealing with fly-posting quickly. Our fly-posting and sticker removal page covers it in more detail.
Facade glazing and access
Most of the glass we clean at height is part of a facade rather than a shopfront — curtain walling, atria, glazed link corridors and apartment block elevations. That work is usually reach-and-wash: telescopic water-fed poles with soft brushes and purified water, which dries spot-free without needing a squeegee.
Purified water matters more than people expect. Ordinary tap water in much of the region leaves mineral deposits as it dries, which is what produces the spotting people blame on poor cleaning. De-ionised water dries clear.
Above pole height it's a MEWP, and the same logic applies as on cladding: if powered access is being mobilised for the glass, get everything else above ground level done in the same visit. See specialist access for how we plan that.
Glass At A Glance
Where we come across it
- Shopfronts, retail glazing and display windows
- Bus shelters, station glazing and public transport infrastructure
- Office and apartment block curtain walling and atria
- Balustrades, canopies, entrance screens and glazed link corridors
What damages it
The mistakes we're most often called in to fix.
- Blades and abrasive pads scratch glass permanently, especially coated panes
- Toughened glass is more scratch-prone than float glass and cannot be polished
- Low-E, self-cleaning and applied films are damaged by scraping and strong chemicals
- Acid etching and deep scratching cannot be cleaned out at all — the pane needs replacing
What We Remove From It
Methods We Use On It
Frequently Asked Questions
Can you remove spray paint from glass?
Yes, and usually completely — glass is non-porous so nothing soaks in and a sound pane comes back to as-new. The care is in the technique: blades and abrasive pads can scratch toughened or coated glass permanently, so we identify the glass type and any applied film first.
Can scratched or etched graffiti be removed from glass?
No. Scratching physically removes material and acid etching chemically eats into the surface — both are part of the glass rather than on it, so no cleaning method restores them. Very light scratching can occasionally be improved by specialist glass polishing, but in most cases replacement is the only real answer, and we'll tell you that straight away.
What is anti-graffiti film?
A clear sacrificial film applied over the glass. When the pane is attacked, the film takes the damage and is peeled off and replaced, which costs a fraction of reglazing. It's the standard answer for bus shelters, station glazing and shopfronts that get targeted repeatedly, and it's worth fitting to a replacement pane at the time of glazing.
Why does my glass look spotted after cleaning?
Almost always mineral deposits from the water rather than dirt left behind. Ordinary tap water leaves those marks as it dries. Professional glass cleaning uses purified, de-ionised water precisely so the surface dries spot-free with no squeegee marks.
Areas We Cover
We clean glass across Manchester, Greater Manchester and Cheshire, including:
Other Surfaces We Clean
Need graffiti gone — fast?
Call 0161 399 5247 or request a free quote. We respond within one working hour.