We remove spray paint from stone, concrete, brick and metal with a pulsed fiber laser. The paint vaporizes layer by layer, the substrate stays intact, no shadow, no fading patch, no opened pores. Mobile service, on heritage facades, public infrastructure, transformer cabinets, garage doors and private property.
Drag the slider across. On the left, a sandstone wall tagged with multi-colour spray paint. On the right, the same wall after laser treatment. No shadow patch, no scoured stone surface, no halo where solvent would have crept into the pores.
Laser graffiti removal is a contact-free, dry process. The spray paint, mostly an acrylic or alkyd binder loaded with pigment, absorbs the laser light at its working wavelength and is transformed into vapour and very fine particles within microseconds. The wall behind it reflects the same wavelength to a large extent and barely changes temperature. The cleaning is selective because the contrast between paint and substrate is in their absorption, not in their hardness.
Compared to traditional graffiti removal methods, the difference is visible to the naked eye. Chemical strippers tend to push pigment into the porous structure of stone, leaving a coloured shadow that follows the original outline. High-pressure water with abrasive media smooths and opens the stone surface, leaving a clean but visibly worn patch that contrasts with the surrounding facade. Laser cleaning avoids both effects. The wall is not eroded and the pigment is not driven deeper into the substrate, it leaves as gas.
Cleanliness is the other key advantage. A built-in extraction unit with HEPA filter captures the vapour and dust at the point of impact. There is no coloured water running into a drain, no plastic sheeting needed on the pavement, no neutralization step at the end. For sensitive locations, like heritage walls, residential courtyards, schools or train stations, this matters as much as the visual end result. Once we leave, the only trace of the intervention is the absence of the graffiti.
Laser does not push pigment into the pores. Stone, brick and concrete keep their original colour without a visible halo around where the tag used to be.
No mechanical abrasion. The grain of sandstone, the smooth face of polished concrete or the rough cast of decorative panels is kept exactly as it was.
No coloured water flowing into drains, no plastic sheeting needed on the pavement, no risk of solvent contaminating planters or soil along the wall.
Compatible with most conservation requirements. We work with conservators on monuments, religious buildings, listed facades and protected fountains.
We remove only the spray paint. Existing inscriptions, plaques, joinery details or original protective layers can be left untouched, without masking tape.
Equipment comes in a van. From arrival to first cleaned m² is usually under one hour, including safety zoning around the work area.
| Material | Eignung | Hinweis |
|---|---|---|
| Sandstone | Sehr gut | Classic facade stone in many Swiss cities. Highly porous, very sensitive to chemical strippers, ideal for laser. Spray paint goes, original honey tone returns. |
| Limestone and marble | Sehr gut | Heritage and decorative use. Laser parameters set softer than for sandstone to preserve the polished surface where present. |
| Brick and clinker | Gut | Porous, multi-coloured surfaces. Pigment is removed without diffusing it deeper into the brick body. Joints are cleaned in the same pass. |
| Concrete | Gut | Smooth precast, exposed aggregate, rough cast. All compatible. No bright patch left where the laser worked. |
| Painted metal | Bedingt | Steel and aluminum doors, transformer cabinets, signage. Spray paint layer removed, original paint of the substrate left intact with adjusted pulse energy. |
| Glass and ceramic | Sehr gut | Tags on transparent panels, mosaic tiles, decorative tiles. Removed without scratching the glaze or chipping the edges. |
| Stone monuments and statues | Sehr gut | Three-dimensional pieces with grooves and shadows. Laser reaches into the details that brushes and pads cannot access cleanly. |
You send photos of the tags, the surrounding context and the address. WhatsApp works well because the orientation of the wall and the lighting matter for the assessment.
We identify substrate, paint type and access conditions. For heritage walls or unusual substrates we propose a free test patch on a discreet area before committing.
Fixed-price quote within 24 hours, with breakdown of cleaning area, travel and any access equipment needed. No hourly drift, no surprise positions.
We arrive with the mobile unit, mark the safety zone, set up the extraction and start with a quick test patch. Then we work the full area methodically, photo before and after each section if requested.
Visual check together, work area cleaned, dust filter emptied. Invoice issued as quoted, photo documentation provided on request for property managers, insurers or heritage authorities.
The mobile setup is what makes graffiti removal practical. A facade does not come to us, a tunnel portal does not come to us, a monument does not come to us. We arrive with the laser, the controller, the extraction and the cabling in a van, plug into a 230 V or 400 V outlet, and bring a generator for sites without power.
We cover the entire country, with regular jobs in Zurich, Bern, Basel, Geneva, Lausanne, Lugano, Sion and the surrounding cantons. For urgent cases, like fresh tags on a heritage building or a transformer cabinet that needs to look presentable for an event, we organize short-notice interventions. More on the mobile service is available through the Laser Cleaning Applications overview.
Pricing depends on the substrate, the surface area, the number of paint layers and the access conditions. We work with fixed-price quotes exclusively. The example figures below give an order of magnitude. For a detailed quote we need photos and the address. Related context on Laser Cleaning on Stone if the substrate is sandstone or limestone.
| Beispiel | Richtpreis |
|---|---|
| Single tag, approx. 1 m² stone or concrete, ground level | ab CHF 380 |
| Facade panel, approx. 10 m² single-layer multi-colour tags | ab CHF 1'200 |
| Monument or sculpture indicative, depends on detail | ab CHF 850 |
Send us photos of the affected surface, the address and any access notes. We reply within 24 hours with a first assessment and, where useful, the option of a free test patch before the main job. No commitment to start, no hidden cost on the quote.
The hub page covering all our application fields, from graffiti and oxide removal to weld cleaning and mold maintenance.
Mehr lesen MaterialDetail page on cleaning sandstone, limestone, marble and concrete with the laser. Suitable substrates, parameters and typical jobs.
Mehr lesen ServiceWider context on the mobile service: how the equipment is deployed, what the safety setup looks like, lead times and recurring contracts.
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