Etching in the glass?
We repair instead of replacing
Cloudy, spotty, damaged? When glass is affected by construction chemicals or aggressive substances, it is called etching. The good news: In many cases, the glass surface can be gently and completely restored — without replacement, without mess, and without construction work.
Chemical glass damage is often overlooked but can be severe.
On construction sites, during renovations, or due to unsuitable cleaning agents, invisible risks to glass surfaces frequently arise. Typical signs of chemical etching include:
- dull or cloudy areas
- undefined stains
- hazy or droplet-shaped patterns
The cause is usually aggressive substances such as cement, mortar, alkalis, or sealants. These attack the glass surface, alter its light transmission, and cannot be removed through conventional cleaning.
Typical Chemical Surface Damage
Widespread leaching
Droplet-shaped and dull zones often appear below façade elements. The cause is alkaline moisture seeping from concrete or masonry, attacking the glass surface.
Etching stains
Irregular, cloudy patterns caused by reactions with mortar, sealants, or aggressive cleaning agents.
Burned-in lime residues
Typical on shower glass: bright, hard spots caused by prolonged exposure to hard water and heat – often permanently embedded in the glass structure.
Oxidation marks (soft coating)
Spot-like discolorations in coated insulating glass, caused by overlapping, dust, or aging.
Glass restoration in action:
Monkey enclosure at Basel Zoo
How our process works in a sensitive environment is shown in our video from Basel Zoo. There, we restore the fogged-up viewing panels in the monkey enclosure – all while operations continue and without disturbing animals or visitors.
👉 Watch the video now and get a behind-the-scenes look
Get in touch now
Send us one or more photos of the affected glass surface. We will analyze the damage and get back to you with:
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a qualified initial assessment
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a free, no-obligation quote
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a personalized recommendation for the next steps